JP2007318567A - Security interphone system and interphone master unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an security interphone system capable of inexpesively attaining an interlocking alarm by using a contact output type fire detector and simplifying the wiring, and to provide an interphone master unit. <P>SOLUTION: When the interphone master unit 1 and an interphone s-master unit 2 receive a fire detection contact signal from the fire detector 11 connected to their own or receive a fire signal from another interphone master unit 1 and another interphone sub-master unit 2, the interphone master unit 1 and the interphone sub-master unit 2 set off an alarm, and when receiving the fire detection contact signal from the fire detector 11 connected to the interphone master unit 1 and the interphone sub-master unit 2, the interphone master unit 1 and the interphone sub-master unit 2 output a fire signal to the another interphone master unit 1 and the another interphone sub-master unit 2 via a control line L3. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a security intercom system and an interphone master unit.

Conventionally, as a fire alarm system for a house, there is a fire alarm system that emits an alarm sound from an interphone master unit when a fire sensor is connected to the interphone master unit and the fire sensor detects the occurrence of a fire. (For example, see Patent Document 1)
In addition, as shown in FIG. 6, a plurality of fire alarms 21 are connected in parallel to each other via a two-wire signal line L10, and the fire source fire alarm 21 that detects the occurrence of a fire emits an alarm sound. There is a fire alarm system in which the fire alarm 21 of the fire source changes the voltage of the two-wire signal line L10 so that other fire alarms 21 also generate an alarm sound (interlocking alarm sound) in conjunction with the fire alarm 21. In such an interlocking type fire alarm, when one fire alarm 21 detects the occurrence of a fire, an alarm sound is output from all the fire alarms 21, and when the fire source is specified, any fire is detected. When the alarm stop string (pull string) 21a of the alarm device 21 is pulled, the voltage of the two-wire signal line L10 further fluctuates, and other than the fire source fire alarm device (that is, other than the fire alarm device that detects the occurrence of a fire) Stops the output of the alarm sound and only the fire alarm of the fire source emits the alarm sound can identify the fire source. (For example, see Patent Document 2)
JP-A-8-70361 JP 2005-339032 A

  However, in the said patent document 1, the alarm sound was not able to be emitted in conjunction with several places at the time of fire outbreak.

  Further, the interlocking type fire alarm 21 as in Patent Document 2 described above requires means for changing the voltage of the two-wire signal line L10 in order to interlock other fire alarms 21. Therefore, the interlocking type fire alarm device is more expensive than a general fire alarm device that outputs a contact signal for an abnormal signal when a fire is detected, and the entire system is also expensive. There is also a problem that the wiring between the fire alarms 21 becomes long.

  The present invention has been made in view of the above-described reasons, and an object of the present invention is to provide a security intercom system and an intercom that can be interlocked at a low cost using a contact output type fire alarm device and can be easily wired. To provide a parent machine.

  According to a first aspect of the present invention, there is provided an interphone master unit to which the door phone slave unit is connected, one or more interphone sub master units connected to the interphone master unit, and a plurality of interphone master units and a plurality of interphone sub master units connected to the interphone master unit and the interphone sub master unit, respectively. The fire alarm device includes a fire detection means for detecting the occurrence of a fire, a first alarm generation means for issuing an alarm when the fire detection means detects the occurrence of a fire, and a fire detection Contact signal output means for switching the contact state and outputting a contact signal when the means detects the occurrence of a fire, and the interphone master unit and the interphone sub-master unit are connected to the contact signal of the fire alarm connected to itself. Fire signal output means for outputting a fire signal to other interphone master unit and interphone sub-master unit when a contact signal indicating that a fire has occurred is received from the output means; A second alarm is issued when a contact signal indicating that a fire has occurred is received from the contact signal output means of the continued fire alarm device and when a fire signal is received from another interphone master unit or interphone sub-master unit. And an alarm generation means.

  According to the present invention, in a security intercom system, a combined alarm in the event of a fire can be realized at low cost by combining a contact output type fire alarm device with an interphone master unit and an interphone sub master unit. Further, by providing the interphone master unit and the interphone sub master unit in the room where each fire alarm is installed, the wiring work from each fire alarm can be easily performed. Furthermore, when a fire breaks out, a call can be made immediately between the interphone master unit and the interphone sub-master unit, so that the fire can be dealt with immediately. That is, it is possible to perform an interlocking alarm at a low cost by using a contact output type fire alarm device and to simplify wiring.

  According to a second aspect of the present invention, in the first aspect, the interphone base unit and the interphone sub-base unit are operated by an alarm stop unit that operates the alarm stop unit that stops the alarm generated by the second alarm generation unit. Alarm stop signal output means for outputting an alarm stop signal to the other interphone master unit and the interphone sub master unit, and the second alarm generating means provides a warning from the other interphone master unit and the interphone sub master unit. The alarm output is stopped when a stop signal is received.

  According to the present invention, the alarm sound generated in conjunction with the interphone master unit and the interphone sub-master unit is stopped, the alarm sound is output only from the fire alarm device that detects the fire, and the fire source can be specified.

  According to a third aspect of the present invention, in the first or second aspect, the second alarm generation means of the interphone master unit and the interphone sub-base unit has a fire from a contact signal output means of a fire alarm connected to itself. A different alarm is issued when a contact signal indicating this is received and when a fire signal is received from another interphone base unit or interphone sub-base unit.

  According to the present invention, since the alarm sound is different between the interphone master unit and the interphone sub master unit close to the fire source, and the other interphone master unit and the interphone sub master unit, it becomes easier to specify the fire source.

  The invention of claim 4 indicates that a fire has occurred from a fire alarm device that issues a warning when a fire occurrence is detected, switches a contact state and outputs a contact signal, and a fire alarm device connected to itself. One or more that outputs an alarm when a contact signal is received or a fire signal is received, and when a contact signal indicating that a fire has occurred is received from a fire alarm connected to the contact signal Fire signal output means that outputs a fire signal to the interphone secondary master unit when receiving a contact signal indicating that a fire has occurred from the fire alarm connected to the interphone secondary master unit and An alarm generating means for generating an alarm when a contact signal indicating that a fire has occurred is received from a connected fire alarm device and when a fire signal is received from an interphone sub-master. To.

  According to the present invention, in the interphone master unit, by combining the contact output type fire alarm device with the interphone master unit and the interphone sub master unit, it is possible to realize an interlocking alarm at the time of fire occurrence at low cost. Further, by providing the interphone master unit and the interphone sub master unit in the room where each fire alarm is installed, the wiring work from each fire alarm can be easily performed. Furthermore, when a fire breaks out, a call can be made immediately between the interphone master unit and the interphone sub-master unit, so that the fire can be dealt with immediately. That is, it is possible to perform an interlocking alarm at a low cost by using a contact output type fire alarm device and to simplify wiring.

  As described above, according to the present invention, it is possible to perform an interlocking alarm at a low cost by using a contact output type fire alarm device and to simplify wiring.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment)
Hereinafter, an embodiment of a security intercom system and an interphone master according to the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a hardware configuration of an embodiment of a security intercom system according to the present invention, and FIG. 2 is a system configuration diagram.

As shown in FIG. 2, the security intercom system includes one interphone master unit 1, a plurality of interphone sub-master units 2, one doorphone slave unit 3, and a plurality of fire alarms 11. The interphone sub-master unit 2 and the door phone slave unit 3 are connected to the interphone master unit 1 via the communication line L1, and the interphone master unit 1, the interphone sub-master unit 2, and the door phone slave unit 3 are connected via the communication line L1. To talk to each other. Further, one fire alarm device 11 is connected to the interphone master unit 1 and each interphone sub-master unit 2 via the signal line L2, and the interphone master unit 1 and the interphone sub-master unit 2 connect the control line L3 to each other. Connected through. (Here, the three fire alarms in FIG. 2 are assigned the symbols 11 (1), 11 (2), 11 (3), respectively, and the fire alarm 11 (1) is the interphone master unit 1. And the interphone sub-master unit to which the fire alarm devices 11 (2) and 11 (3) are connected are assigned 2 (2) and 2 (3), respectively.
As shown in FIG. 1, the interphone master unit 1 includes a signal processing unit 1a that processes signals from each circuit, a speaker 1b that outputs voice and sound, and a communication via a communication line L1. Communication circuit 1c for performing the alarm, alarm unit 1d for generating an alarm sound from the speaker 1b based on the contact signal output from the fire alarm device 11 via the signal line L2, and a chime sound from the speaker 1b A call can be made with a chime sound generating circuit 1e for switching, a switch 1f for switching and connecting the speaker 1b to the call circuit 1c, the alarm unit 1d or the chime sound generating circuit 1e, and a microphone 1g for inputting sound during a call. A call button 1h for outputting a signal for calling, a call detection circuit 1i for detecting a call signal transmitted via the communication line L1, and an alarm The alarm stop button 1j for stopping the alarm output from the unit 1d, the communication line L1 from the door phone slave unit 3, and the slave unit connection unit 1k connected to the call circuit 1c and the call detection circuit 1i are connected to the interphone sub-unit. Connects the communication line L1 from the base unit 2 and internally connects the base unit connection unit 1m connected to the call circuit 1c and the call detection circuit 1i to the control line L3 from the interphone sub-base unit 2 and internally performs signal processing. And a control line connection unit 1n connected to the unit 1a.

  Further, as shown in FIG. 1, the interphone secondary master unit 2 has the same configuration as the interphone master unit 1 except that the interphone master unit 1k for connecting the door phone slave unit 3 is not provided. The communication line L1 from the interphone master unit 1 and the interphone sub master unit 2 is connected to the unit 1m, and the control line L3 from the interphone master unit 1 and the interphone sub master unit 2 is connected to the control line connection unit 1n. .

  Next, as shown in FIG. 3, the fire alarm 11 monitors the fire factor such as heat and smoke and the signal processing unit 11 a that processes the signal from each circuit and detects the fire factor. Stop the fire detection circuit 11b that outputs an abnormal signal to the signal processing unit 11a, the alarm unit 11c for generating an alarm sound, one speaker 11d for outputting the alarm sound, and the alarm output from the alarm unit 11c Alarm stop string 11e to be turned on and a contact point that can be switched to a closed state when a fire is detected by a signal processing unit 11a, and an alarm unit 1d of the interphone master unit 1 and the interphone sub-master unit 2 via a signal line L2. And a contact output circuit 11f that outputs a contact signal.

  The interphone master unit 1 has an interphone function for making a call with the doorphone slave unit 3, and the interphone sub-master unit 2 is also an interphone for making a call with the doorphone slave unit 3 through the interphone master unit 1. When the call button 3a of the doorphone slave unit 3 is operated and the call detection circuit 1i detects the signal, each signal processing unit 1a of the interphone master unit 1 and the interphone sub-master unit 2 If 1f is switched to the chime sound generating circuit 1e side, the chime sound generating circuit 1e and the speaker 1b are connected, and a ringing tone is output from the speaker 1b.

  The time for which the ringing tone is output is counted by a timer. If the call button 1h of the interphone base unit 1 or the interphone sub-base unit 2 is not operated within a predetermined time (for example, 1 minute), the time is up. finish. On the other hand, when the call button 1h of the interphone base unit 1 or the interphone sub-base unit 2 is operated within a predetermined time, the signal processing unit 1a of the interphone base unit 1 or the interphone sub-base unit 2 switches the switch 1f to the call circuit. By switching to the 1c side, the call circuit 1c and the speaker 1b are connected to enter a call state.

  In addition, a call can be made between the interphone master unit 1 and the interphone submaster unit 2 and between the interphone submaster unit 2 and the interphone submaster unit 2, and the operation is a call operation with the doorphone slave unit 3. The description is omitted here.

  Further, the interphone master unit 1 and the interphone sub-master unit 2 have the above interphone function and constitute a security system with the fire alarm device 11, and this security function will be described below.

  First, when the fire detection circuit 11b of the fire alarm device 11 detects the occurrence of a fire and outputs an abnormal signal, the signal processing unit 11a of the alarm device activates the alarm unit 11c and outputs an abnormal signal from the fire detection circuit 11b. Is output from the speaker 11d while the alarm signal is output from the fire detection circuit 11b, the contact of the contact output unit 11f is switched to the closed state and the fire alarm is connected. The fire detection contact signal is output to the alarm unit 1d of the interphone base unit 1 or the interphone sub-base unit 2.

  In the intercom master unit 1 or the interphone sub master unit 2 that has received the fire detection contact signal from the fire alarm device 11 via the signal line L2, the signal processing unit 1a switches the switch 1f to the alarm unit 1d side, While connecting 1d and speaker 1b and receiving a fire detection contact signal, an alarm sound is emitted from speaker 1b, and other interphone master unit 1 and interphone sub-parent are connected from signal processing unit 1a via control line L3. A fire signal is output to machine 2. When the signal processing unit 1a of the other interphone master unit 1 and interphone sub-master unit 2 connected to the control line L3 also receives the fire signal, the switch unit 1f is switched to the alarm unit 1d side, and the alarm unit 1d While the speaker 1b is connected and a fire signal is received, an alarm sound is emitted from the speaker 1b. Therefore, while any of the plurality of fire alarms 11 detects the occurrence of a fire, not only the fire alarm 11 that detects the fire but also the interphone master unit 1 and all the interphone sub-master units 2 are linked. Beep.

  Then, in the state where the fire alarm device 11, the interphone master device 1, and all the interphone sub-master devices 2 that have detected a fire are emitting an alarm sound, any one of the interphone master device 1 and the interphone sub-master device 2 is stopped. When the button 1j is pressed, the signal processing unit 1a of the interphone master unit 1 or the interphone sub-master unit 2 stops the alarm sound output from its own alarm unit 1d for a predetermined time and another interphone via the control line L3. An alarm stop signal is output to the master unit 1 and the intercom sub-master unit 2. When the signal processing unit 1a of the other interphone master unit 1 and interphone sub-master unit 2 connected to the control line L3 also receives the alarm stop signal, the alarm sound output from its own alarm unit 1d is stopped for a predetermined time. .

  Therefore, in the state where the fire alarm 11, the interphone master unit 1, and all the interphone sub-master devices 2 that have detected a fire are emitting an alarm sound, the alarm stop of either the interphone master device 1 or the interphone sub-master device 2 is stopped. When the button 1j is pressed, the alarm sound generated in conjunction with the interphone master unit 1 and the interphone sub master unit 2 stops for a predetermined time, and the alarm sound is output only from the fire alarm device 11 that detects a fire. Can be specified.

  The interphone master unit 1 and the interphone sub master unit 2 receive the fire detection contact signal from the fire alarm device 11 and when they receive the fire signal from the other interphone master unit 1 and the interphone sub master unit 2. The alarm unit 1d outputs different types of alarm sounds. That is, since the alarm sound is different between the interphone master unit 1 and the interphone sub master unit 2 close to the fire source, and the other interphone master unit 1 and the interphone sub master unit 2, it becomes easier to identify the fire source.

  FIG. 4 shows an operation flow of alarm output when a fire is detected. For example, when the fire alarm 11 (3) in FIG. 2 detects the occurrence of a fire (step S1), the fire alarm 11 (3) fires. Is detected (step S2), and a fire detection contact signal is output to the intercom sub-master 2 (3) via the signal line L2. (Step S3).

  The interphone sub-master 2 (3) emits an alarm sound (step S5) while receiving the fire detection contact signal (step S5), and the interphone master 1 and interphone sub-phone via the control line L3. A fire signal is output to the main unit 2 (2) (step S6). While the intercom master unit 1 and the interphone sub master unit 2 (2) are receiving the fire signal (step S7), they emit an alarm sound (step S8). Therefore, not only the fire alarm device 11 (3) that detects a fire but also the interphone master unit 1 and the interphone sub-master units 2 (2) and 2 (3) emit an alarm sound in conjunction with each other (step S9).

  Next, FIG. 5 shows an operation flow at the time of restoration. First, the fire alarm 11 (3) shown in FIG. 2 detects the occurrence of a fire, and the interphone master unit 1 and the interphone sub master unit 2 ( 2), 2 (3), while the fire alarm 11 (3) is emitting an alarm sound (step S11), when the alarm stop button 1j of the interphone sub-master 2 (3) is pressed (step S12), The interphone secondary master unit 2 (3) stops the alarm sound output for a predetermined time (step S13), and outputs an alarm stop signal to the interphone master unit 1 and the interphone secondary master unit 2 (2) via the control line L3 ( Step S14). When receiving the alarm stop signal via the control line L3 (step S15), the interphone master unit 1 and the interphone sub master unit 2 (2) stop the alarm sound output for a predetermined time (step S16). In this state, an alarm sound is emitted only from the fire alarm device 11 (3) which is a fire source, and the fire source can be specified.

  When the fire alarm 11 (3), which is a fire source, stops detecting the occurrence of a fire, the alarm sound output is stopped and the contact of the contact output unit 11f is switched to the open state to output a fire detection contact signal. Is stopped (step S17).

  Alternatively, when the alarm stop string 11e of the fire alarm 11 (3) that is generating the alarm sound is pulled (step S18), the signal processing unit 11a stops the alarm sound output from the alarm unit 11c for a predetermined time. (Step S19).

  As described above, in this embodiment, by combining the contact output type fire alarm device 11 with the interphone master unit 1 and the interphone sub master unit 2, it is possible to realize an interlocking alarm at the time of fire occurrence at low cost. Further, by providing the interphone master unit 1 and the interphone sub-master unit 2 in the room where each fire alarm device 11 is installed, the wiring work of the signal line L2 from each fire alarm device 11 can be easily performed. Furthermore, when a fire occurs, a call can be made immediately between the interphone base unit 1 and the interphone sub-base unit 2 so that the fire can be quickly dealt with.

  The interphone master unit 1, the interphone sub master unit 2, and the fire alarm device 11 are powered by the interphone master unit 1, the interphone sub master unit 2, and the fire alarm unit 11 from the commercial power source (AC100V). Or a configuration in which the interphone master unit 1 and the interphone sub-master unit 2 are each provided with a power supply circuit to supply driving power to the fire alarm device 11 through the signal line L2, or a fire alarm device. 11 may have any configuration in which a power supply circuit is provided and driving power is supplied to the interphone base unit 1 and the interphone sub-base unit 2 via the signal line L2.

It is a block diagram which shows the security intercom system of embodiment. It is a block diagram which shows a system same as the above. It is a block diagram which shows a fire alarm same as the above. It is a flowchart which shows the operation | movement of the alarm output at the time of a fire detection same as the above. It is a flowchart which shows the operation | movement at the time of a recovery same as the above. It is a block diagram which shows the conventional fire alarm system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Interphone main unit 1a Signal processing part 1b Speaker 1d Alarm unit 1j Alarm stop button 2 Interphone submaster 3 Interphone cord 11 Fire alarm 11e Alarm stop string L1 Communication line L2 Signal line L3 Control line

Claims (4)

An interphone master unit to which the door phone slave unit is connected, one or more interphone sub master units connected to the interphone master unit, and a plurality of fire alarms respectively connected to the interphone master unit and the interphone sub master unit And
The fire alarm is a fire detection means that detects the occurrence of a fire, a first alarm generation means that issues an alarm when the fire detection means detects a fire occurrence, and a fire detection means that detects the occurrence of a fire. And contact signal output means for switching the contact state and outputting a contact signal,
When the interphone base unit and the interphone sub base unit receive a contact signal indicating that a fire has occurred from the contact signal output means of the fire alarm connected to the interphone base unit, the interphone base unit and the interphone base unit fire When a contact signal indicating that a fire has occurred is received from the fire signal output means that outputs the signal and the contact signal output means of the fire alarm connected to itself, and from another interphone master unit or interphone sub-master unit A security intercom system, comprising: a second alarm generation unit that issues an alarm when a signal is received. The interphone master unit and the interphone sub-master unit are operated to stop an alarm issued by the second alarm generation unit, and when the alarm stop unit is operated, the other interphone master unit and interphone sub-master unit are operated. An alarm stop signal output means for outputting an alarm stop signal to the master unit, and the second alarm generation means stops the alarm output when an alarm stop signal is received from another interphone master unit or interphone sub-master unit. The security intercom system according to claim 1. The second alarm generating means of the interphone master unit and the interphone sub-master unit receives the contact signal indicating that a fire has occurred from the contact signal output means of the fire alarm connected to the interphone master unit and another interphone master unit. The security intercom system according to claim 1 or 2, wherein different alarms are issued when a fire signal is received from a machine or an interphone sub-master. When a fire alarm is issued when a fire is detected, a fire alarm device that outputs a contact signal by switching the contact state, and a contact signal that a fire has occurred from the fire alarm device connected to it, Or, when a fire signal is received, an alarm is issued, and when a contact signal indicating that a fire has occurred is received from a fire alarm connected to itself, it is connected to one or more interphone sub-master units that output a fire signal. And
When a contact signal indicating that a fire has occurred is received from the fire alarm connected to itself, a fire signal is output from the fire alarm output means that outputs a fire signal to the interphone secondary master unit, and from the fire alarm connected to itself. An interphone base unit comprising: an alarm generation unit that issues an alarm when a contact signal indicating that the alarm has occurred is received and when a fire signal is received from the interphone sub-base unit.

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