JP3227049B2 - Disaster prevention monitoring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disaster prevention monitoring device which alerts an emergency such as a fire by voice in an apartment house or the like.

[0002]

2. Description of the Related Art Generally, when an alarm such as a fire is issued, an alarm is issued by sounding a bell. However, in apartment buildings such as condominiums, even if a bell is installed in the hallway, etc., the sound of doors and walls is excellent, and the sound of the bell may not be heard sufficiently indoors. There has been proposed a disaster prevention monitoring device that issues a warning by a voice message via the Internet.

[0003] As this kind of voice alarm device, for example, Japanese Patent Application Laid-Open No.
As disclosed in Japanese Patent Application Laid-Open No. 50800/1990, an alarm is issued by a voice message using a speaker of a door phone slave unit, and as a device used in a building or an underground mall, the location and type of occurrence of an emergency as described in Japanese Patent Application Laid-Open No. 2-35597. Is known by a voice message.

When a warning is given by a voice message, it is desirable to simultaneously issue a warning with a different voice message for each alerting area in order to properly perform evacuation guidance. For example, Japanese Patent Laid-Open No. 4-3297 discloses a conventional example. Is shown in FIG. 5 and FIG. 6 show the outline, and in a condominium, a plurality of dwelling units on each floor are provided with a speaker SP and a relay LY for switching an input side of the speaker SP.

[0005] One input side of the relay LY is connected to the audio line L1 common to the apartment house, and the other input side is audio lines L2, L3 to L3 provided for each floor of the apartment house.
Is connected to the audio line of the floor. This relay LY connects the speaker SP in the dwelling unit to the audio line side for each floor in a normal state, and connects to the common audio line L1 side under the control of the control unit when a fire is detected.

On the other hand, the receiver R sends a special voice message such as "a fire has occurred in this dwelling unit" to the dwelling unit in which the fire has occurred, from the power amplifier AMP1 to the common voice line L1. The power amplifier AMP2 sends a common voice message such as "Fire on the XX floor" to other dwelling units on the floor and all dwelling units directly above the floor except the one where the fire occurred. It is transmitted via the audio line for each floor. Thus, by providing the power amplifiers AMP1 and AMP2 for each voice message,
Different types of voice messages can be sent simultaneously.

[0007]

However, in the conventional disaster prevention monitoring device, since the disconnection of the loudspeaker is not monitored, there is a problem that a sound alarm cannot be issued when the disconnection occurs. The present invention has been made in view of such a conventional problem, and has as its object to provide a disaster prevention monitoring system capable of easily performing disconnection inspection of a speaker.

[0008]

To achieve the above object, the present invention provides a receiver, a repeater connected to the receiver, a fire detector connected to the repeater, A disaster prevention monitoring device having a speaker connected through a transformer provided inside the device and outputting an alarm sound in accordance with an instruction of the receiver when the fire detector detects a fire, wherein a voice of the speaker is provided to the relay device. A disconnection detection terminal to which a disconnection detection line is connected from the audio signal line on the speaker side is provided from the capacitor and connected to the disconnection detection line, and a checker is connected to the capacitor. Is provided in the repeater.

Further, the present invention provides a receiver, a repeater connected to the receiver, a fire detector connected to the repeater, and a transformer connected via a transformer provided inside the repeater. In the disaster prevention monitoring device including a plurality of speakers that output an alarm sound according to an instruction of the receiver when the fire detector detects a fire, a capacitor that blocks direct current in series with a voice coil of the speaker is provided on the speaker side. A terminal diode is connected to the speaker terminal of the last stage, and a switch means connected to one end of the output side of the transformer and switching contacts by inserting a connector of an inspector is connected to the repeater, and the switched switch means is connected to the repeater. A first terminal for detecting disconnection to which the inspection device is connected, and the other terminal connected to the other end of the output side of the transformer; Characterized in that a second terminal for disconnection detection is connected.

[0010]

According to the disaster prevention monitoring device of the present invention having such a configuration, when the inspection device is connected to the repeater, the DC current from the inspection device does not flow to the transformer side but flows to the speaker due to the capacitor. Therefore, the disconnection of the voice signal line connecting the repeater and the speaker and the disconnection of the voice coil of the speaker can be checked.

Further, according to another disaster prevention monitoring device of the present invention, when an inspection device is connected to the repeater, the switch means is switched, and the transformer is switched to the inspection device. The DC current from the checker flows to a signal line connecting the repeater and the speaker, and the signal line can be checked. in this case,
Since the DC current does not flow through the voice coil due to the capacitor, the disconnection of the voice coil cannot be checked.

[0012] In these disaster prevention monitoring devices, the track condition can be monitored with a simple configuration, so that the reliability of the devices can be improved.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 are views showing an embodiment of the present invention.
FIG. 2 is an overall configuration diagram according to an embodiment of the present invention. FIG.
, 1 is an apartment house, 2 is outside the dwelling unit of the apartment house 1,
Reference numeral 3 denotes the inside of the dwelling unit of the apartment house 1.

In each of the dwelling units 4 and 5 in the dwelling unit 3, a fire detector 6 having an outdoor inspection function such as an analog or on / off type smoke detector or a heat detector and a speaker 7 are installed. A repeater 8 having an outdoor inspection function is installed in each of the dwelling units 4 and 5, and an analog type common unit detector 9 and a common speaker 10 with an outdoor inspection function are installed in common areas of the apartment 1 such as a corridor or stairs. Is installed.

Reference numeral 11 denotes a receiver, and a power / signal line 12 composed of a power line, a signal line, and a common line is drawn out from the receiver 11 for each floor, and a plurality of repeaters 8 are connected to the power / signal line 12. Connected. Further, an analog common-use sensor 9 is connected to the power / signal line 12. The fire detector 6 is connected to the repeater 8 via a signal line 13, a common line 14 and a check line 15.

An audio signal line 16 is drawn out from the receiver 11 for each floor, a common unit speaker 10 is connected to the audio signal line 16, and the dwelling unit 4 is connected via the repeater 8.
The speaker 7 in 5 is connected. Reference numeral 17 denotes an outdoor inspection device (inspection device). The outdoor inspection device 17 is connected to the repeater 8 via a connector, and performs inspection of the fire detector 6 and the speaker 7 from outside.

Next, FIG. 3 is an external view of the repeater 8 and the outdoor inspection device 17. In FIG. 3, 8 is the repeater,
The repeater 8 is embedded in a wall surface such as the upper part of each of the dwelling units 4 and 5. An opening / closing door 18 is provided on the front of the repeater 8 so as to be openable and closable. When the opening / closing door 18 is opened, an inspection connector 19 and an inspection caution light 20 appear.

When the fire detector 6 and the speaker 7 are inspected by the outdoor inspector 17, the inspection connector 21 of the outdoor inspector 17 is connected to the inspection connector 19. The inspection caution light 20 is erroneously detected during the inspection.
In order to give attention to an inspector so as not to pull out the inspection connector 21 of the outdoor inspection device 17 from 9, the inspection connector 19 is provided near the inspection connector 19. An outdoor indicator 22 for displaying a fire alarm is provided at the center of the front of the repeater 8.

The outdoor inspector 17 comprises a power supply unit 23 and an inspector main body 24, and the inspection connector 21 is connected to the inspector main body 24 via a cable 25. Reference numeral 26 denotes a speaker check switch provided on the checker main body 20, and when the speaker check switch 26 is turned on, the disconnection check of the speaker 7 is started. 27
Is a normal / abnormal indicator lamp provided on the checker main body 24, and the normal / abnormal indicator lamp 27 indicates whether the disconnection inspection result of the speaker 7 is normal or abnormal. Reference numeral 28 denotes a buzzer as a sounding unit. The buzzer 28 notifies the checker of the disconnection check result of the speaker 7 by voice.

A DC power supply 29 is housed in the power supply unit 23 and supplies power to the speaker 7 when the speaker check switch 26 is turned on. Next, FIG. 1 is an internal configuration diagram.
In FIG. 1, reference numeral 31 denotes a fire detection unit provided in the repeater 8. The fire detection unit 31 detects an alarm signal from the fire detector 6 and outputs the alarm signal to the fire output unit 32, the outdoor display. This is transmitted to the light 22 and the notification output unit 33.

When the fire output unit 32 receives the alarm signal,
An alarm signal is output to the receiver 11. When receiving the alarm signal, the outdoor indicator 22 displays a fire alarm in front of the repeater 8. When receiving the alarm signal, the notification output unit 33 outputs the notification to a house information panel or the like. Reference numeral 34 denotes a transformer including a primary winding 35, a secondary winding 36, and an iron core 37. The transformer 34 is provided in the repeater 8, and the speaker 7 is connected to the receiver 11 via the transformer 34.

The primary winding 35 is connected to audio input terminals 40 and 41 via audio signal lines 38 and 39, respectively, and the secondary winding 36 is connected to audio output terminals 44 and 41 via audio signal lines 42 and 43, respectively. 45 respectively. 46, 47
Is an audio output terminal provided in the receiver 11, and the audio output terminals 46 and 47 are connected to the audio input terminals 40 and 41 of the repeater 8 via audio signal lines 48 and 49, respectively.
A power amplifier 51 is connected to an audio output terminal 46 of the receiver 11 via a capacitor 50, and the power amplifier 51 is driven by a control unit 52.

The control unit 52 is connected to the receiving circuit 53. When the receiving circuit 53 receives the alarm signal from the repeater 8 via the power / signal line 12, the control unit 52 transmits a drive signal to the power amplifier 51 based on the alarm signal. Output. The audio signal output terminals 44 and 45 of the repeater 8 are connected to the speaker terminals 54 and 5 of the speaker 7.
5 is connected via audio signal lines 56 and 57, and a voice coil 58 is connected between the speaker terminals 54 and 55.

The audio signal line 42 is connected in series with the voice coil 58.
Is connected to a capacitor 59 for blocking direct current, and disconnection detection lines 60 and 61 are respectively drawn from the audio signal line 42 and the audio signal line 43 on the speaker 7 side from the capacitor 59, and the disconnected detection lines 60 and 61 are drawn out. Is the checker 1
7 are connected to the disconnection detection terminals 62 and 63 to which they are connected. The disconnection detection terminals 62 and 63 are provided in the inspection connector 19, and the inspection connector 21 of the outdoor inspector 17 is inserted into the inspection connector 19.

The terminals 64 and 65 of the inspection connector 21 and the disconnection detection terminals 66 and 67 of the outdoor inspector 17 are connected to the disconnection detection line 6.
The diode 70, the resistors 71 and 72, the speaker check switch 26 and the DC power supply 29 are connected in series between the disconnection detection terminals 66 and 67, and the DC power supply 29 has a transistor 73, a resistor 74 and A series circuit composed of normal / abnormal indicator lights 27 is connected in parallel.

Next, the operation of FIG. 1 will be described. First, an operation at the time of sounding a sound will be described. When a fire occurs, the receiver 1
The first receiving circuit 53 receives the alarm signal from the repeater 8 and sends it to the control unit 52. When the control unit 52 receives the alarm signal,
The power amplifier 51 is driven to output a high-voltage audio signal. The output of the power amplifier 51 is impedance-matched with the speaker 7 by the transformer 34, and the output of the capacitor 59
To the voice coil 58 of the speaker 7.
Since the impedance of the capacitor 59 is low in an AC signal, the audio signal passes through the capacitor 59. For this reason, the audio signal output from the transformer 34 is hardly attenuated, is applied to the speaker 7, and the speaker 7 outputs an alarm sound.

Next, the operation at the time of disconnection inspection will be described. First, the inspection connector 21 of the outdoor inspection device 17 is inserted into the inspection connector 19 of the repeater 8. Next, the speaker inspection switch 26 of the outdoor inspection device 17 is turned on. Then, a DC current flows from the positive side of the DC power supply 29 as shown by an arrow. That is, the DC current flows through the resistors 72 and 71, the diode 70, the disconnection detection line 68, the inspection connectors 21 and 19, and the disconnection detection line 60.
4, the audio signal line 56, the voice coil 58, the audio signal line 57, the disconnection detection line 61, and the inspection connectors 19 and 2.
1. Flow through the disconnection detection line 69 to the negative side of the DC power supply 29. At this time, the transistor 73 is turned on,
The abnormal lamp 27 lights up.

Thus, the audio signal lines 56 and 57 connecting the repeater 8 and the speaker 7 and the voice coil 58 in the speaker 7
Disconnection can be checked. Next, FIG. 4 is a diagram showing another embodiment of the present invention, which is characterized in that a plurality of speakers are connected in parallel. In FIG. 4, 8
1, 82 are terminals of the repeater 83, 84, 85 are speakers 8
6, terminals 81 and 82 are signal lines 8 respectively.
7, 88 are connected to terminals 84, 85, respectively.

Reference numerals 89 and 90 denote terminals of the final-stage speaker 91. The terminal 84 and the terminal 89 are connected via a signal line 92. The terminal 85 and the terminal 90 are connected via a signal line 93. The terminal 90 is connected via a signal line 94, and a plurality of terminating diodes 95 are connected to the signal line 94. Note that the number of connection of the terminating diode 95 is determined according to the output voltage level of the sound.

A capacitor 97 is connected in series with the voice coil 96 of the speaker 86, and the capacitor 97 blocks direct current. A capacitor 99 is connected in series with the voice coil 98 of the speaker 91, and the capacitor 99 blocks direct current. Reference numeral 100 denotes a transformer provided in the repeater 83, and the transformer 100 includes a primary winding 101, a secondary winding 1
02 and the iron core 103. The primary winding 101 is connected between terminals 104 and 105, and the secondary winding 102 is connected to terminal 8
1, 82 are connected.

A switch (switch means) 106 is connected between one end of the secondary winding 102 and the terminal 81. When the outdoor inspection device 107 is connected to the repeater 83 by a connector, the switch 108 The contact is switched to the contact 109. A terminal V1 is connected to the contact 109, and a terminal V of the outdoor inspection device 107 is connected to the terminal V1. A contact 110 is provided between the other end of the secondary winding 102 and the terminal 82, and the contact 110 is connected to the terminal C1.
1 is connected to a terminal C of the outdoor inspection device 107.

The terminals 104 and 105 of the repeater 83 and the terminals 112 and 113 of the receiver 111 are connected via signal lines 114 and 115, and the terminal 112 is connected to a power amplifier 117 via a capacitor. The power amplifier 117 is driven by the control unit 118,
When receiving the alarm signal from the receiving circuit 119, it outputs a drive signal to the power amplifier 117. Receiving circuit 119
Receives an alarm signal from a fire detector (not shown) via the relay 83.

Between the terminal V and the terminal C of the outdoor inspection device 107,
DC power supply 120, speaker check switch 121, resistor 1
22 and a normal / abnormal indicator lamp 123 are connected in series. Next, the operation of FIG. 4 will be described. First, an operation at the time of sounding a sound will be described.

When a fire occurs, the receiving circuit 119 of the receiver 111 receives the alarm signal and outputs it to the control unit 118. The control unit 118 controls the power amplifier 1 based on the alarm signal.
17 is driven. The high-voltage audio signal output from the power amplifier 117 is output to the repeater 83 via the capacitor 116, and after the impedance matching with the speakers 86 and 91 is taken by the transformer 100, the switch 106 connected to the contact 108 is turned on. Through the capacitors 97 and 99 to the speakers 86 and 91.

The capacitors 97 and 99 allow audio signals to pass because the impedance of the AC signals is low. Therefore, the audio signal output from the transformer 100 is hardly attenuated, is applied to the speakers 86 and 91, and an alarm sound is output from the speakers 86 and 91. Next, the operation at the time of disconnection inspection will be described.

First, the outdoor inspection device 107 is connected to the repeater 83. As a result, the terminals V and C of the outdoor inspection device 107 are connected to the terminals V1 and C1 of the repeater 83, respectively, and the switch 106 is switched from the contact 108 to the contact 109. Next, when the speaker check switch 121 is turned on, a DC current flows from the plus side of the DC power supply 120, and the speaker check switch 121, the resistor 122, the normal /
It flows to the abnormality indicator lamp 123, the terminal C, the terminal C1, the contact 110, the terminal 82, the signal line 88, the terminal 85, and the voice coil 9
6 flows through the signal line 93 and the terminal 90 because the DC current is blocked by the capacitor 97.
DC current flowing through the voice coil 98 of the
Signal line 94, terminating diode 95, terminal 8
9, the current flows through the signal line 92, the terminal 84, the signal line 87, the terminal 81, the switch 106, the contact 109, the terminal V1, and the terminal V to the negative side of the DC power supply 120. At this time, the normal / abnormal indicator lamp 123 is turned on, and the disconnection can be checked. In this case, the disconnection of the voice coils 96 and 98 cannot be checked.

[0037]

As described above, the repeater is provided with the capacitor connected in series with the voice coil of the speaker, and the disconnection detection line is drawn from the audio signal line on the speaker side from the capacitor, and the drawn disconnection is provided. Since the disconnection detection terminal to which the detection wire is connected and to which the inspection device is connected is provided in the repeater, disconnection inspection of the speaker can be easily performed, and the reliability of the device can be improved.

In another embodiment, a capacitor is provided on the speaker side in series with the voice coil of the speaker, a terminating diode is connected to the last speaker terminal, and a contact is inserted into the repeater by inserting a connector of an inspection device. , A first terminal to which the checker is connected, and a second terminal to which the checker is connected, so that a plurality of speakers are connected. Also, disconnection inspection of the speaker can be easily performed, and the reliability of the device can be improved.

[Brief description of the drawings]

FIG. 1 is an internal configuration diagram showing an embodiment of the present invention.

FIG. 2 is an overall configuration diagram

FIG. 3 is an external view of a repeater and an inspection device.

FIG. 4 is an internal configuration diagram showing another embodiment of the present invention.

FIG. 5 shows a conventional example.

FIG. 6 is an explanatory diagram of a conventional alarm sound.

[Explanation of symbols]

1: Apartment house 2: Outside of living unit 3: Inside of living room 4, 5: Living room 6: Fire detector 7: Speaker 8: Repeater 9: Common unit detector 10: Common unit speaker 11: Receiver 12: Signal line for both power supply 13: signal line 14: common line 15: inspection line 16: audio signal line 17: inspection device (outdoor inspection device) 18: opening / closing door 19, 21: inspection connector 20: lighting caution light 22: outdoor indicator light 23: power supply unit 24: Inspection unit body 25: Cable 26: Speaker check switch 27: Normal / abnormal indicator light 28: Buzzer 29: DC power supply 31: Fire detection unit 32: Fire output unit 33: Movement output unit 34: Transformer 35: Primary winding 36: secondary winding 37: iron core 38, 39, 42, 43, 48, 49, 56, 57: audio signal line 40, 41: audio signal input terminal 44, 45, 46, 47: audio signal output Terminals 50, 59: Capacitor 51: Power amplifier 52: Control unit 53: Receiving circuit 54, 55: Speaker terminal 58: Voice coil 60, 61, 68, 69: Disconnection detection line 62, 63, 66, 67: Disconnection detection terminal 64, 65: terminal 70: diode 71, 72, 74: resistor 73: transistor 81, 82, 84, 85, 89, 90, 104, 10
5, 112, 113: terminal 83: repeater 86, 91: speaker 87, 88, 92, 93, 94, 114, 115: signal line 95: terminating diode 96, 98: voice coil 97, 99, 116: capacitor 100 : Transformer 101: Primary winding 102: Secondary winding 103: Iron core 106: Switch 107: Outdoor inspection device 108, 109, 110: Contact point 111: Receiver 117: Power amplifier 118: Control unit 119: Receiving circuit 120: DC power supply 121: Speaker check switch 122: Resistance 123: Normal / abnormal indicator

Continuation of the front page (56) References JP-A-6-52481 (JP, A) JP-A-63-55697 (JP, A) JP-A-4-222094 (JP, A) Jpn. (58) Fields investigated (Int. Cl. ⁷ , DB name) G08B 29/10 G08B 23/00 520 G08B 25/00 520

Claims (2)

(57) [Claims] 1. A fire detector connected to a receiver, a repeater connected to the receiver, a fire detector connected to the repeater, and a transformer provided in the repeater. In a disaster prevention monitoring device including a speaker that outputs an alarm sound according to an instruction of the receiver when a fire is detected, the relay is provided with a capacitor that is connected in series with a voice coil of the speaker and that blocks direct current, A disaster prevention monitoring device, wherein a disconnection detection line is drawn from an audio signal line on a speaker side from a capacitor, the disconnection detection line is connected, and a disconnection detection terminal to which an inspection device is connected is provided in the repeater. 2. A receiver, a repeater connected to the receiver, a fire detector connected to the repeater, and the fire detector connected via a transformer provided in the repeater. In a disaster prevention monitoring device including a plurality of speakers that output an alarm sound in response to an instruction of the receiver when a fire is detected, capacitors for blocking direct current in series with a voice coil of the speakers are provided on the speaker side, and a final stage is provided. Switch means for connecting a terminating diode to the speaker terminal of the relay device, the relay device being connected to one end on the output side of the transformer, and switching contacts by inserting a connector of a checker;
A first terminal for disconnection detection to which the switched switch means is connected and to which the inspection device is connected, and a disconnection detection terminal to which the inspection device is connected while being connected to the other end on the output side of the transformer. A disaster prevention monitoring device comprising the second terminal.