JP4579610B2 - Apartment house intercom system - Google Patents

Description

  The present invention relates to an apartment house intercom system, and in particular, even when an alarm sound is sounded from an alarm alarm device that has detected a security abnormality, the interphone parent machine is connected to an apartment doorway or a control room parent machine. The present invention relates to an apartment intercom system capable of hands-free calling.

  Conventionally, a housing information panel master unit has been installed in each dwelling unit of a housing complex, and a sensor having a remote test function such as a fire detector, a gas leak sensor, and a CO concentration sensor are connected to the housing information panel master unit. And a housing-free hands-free system in which an alarm monitoring panel is connected via a video control panel (see, for example, Patent Document 1)

  In the conventional housing-free system for apartments, for example, when a sensor detects a fire that has occurred in each dwelling unit of the apartment, a predetermined alarm is output by the housing information panel master connected to this sensor. At the same time, the alarm monitoring board is called, and the alarm monitoring board responding to this calls the home information board master unit, so that a communication path is formed between the housing information monitoring board and the alarm monitoring board, and a hands-free call is made. It can be performed.

JP 2003-37678 A (paragraph numbers 0016 to 0019, 0026, FIGS. 1 and 2)

  However, in the conventional housing-free hands-free system, if the sensor is equipped with a self-reporting function that sounds an alarm sound, this alarm sound is input to the microphone of the home information board master unit, There is a possibility that it is impossible to transmit the alarm information from the alarm monitoring panel to the housing information monitoring panel by ringing from the speaker of the alarm monitoring panel in which a communication path is formed with the housing information monitoring panel.

  The present invention has been made to solve the above-described problems, and is not affected by an alarm sound that is sounded from an alarm alarm device that has detected a security abnormality and is input to the microphone of the interphone master device. It is an object of the present invention to provide a collective housing intercom system capable of performing hands-free communication with a collective entrance machine or a management room master machine.

In order to achieve the above-described object, an apartment intercom system according to the present invention includes an apartment entrance installed at the entrance of an apartment, a control room main unit installed in an apartment management room, and each dwelling unit of the apartment Interphone master unit for hands-free communication with the main entrance or control room master unit installed in the network, and detecting a security abnormality occurring in each dwelling unit and outputting a security abnormality signal to the interphone master unit An alarm alarm for sounding an alarm sound and a controller for performing call control and call control between the central entrance or management room master and the interphone master are provided. This intercom master unit has a microphone and speaker for hands-free communication with the central entrance or control room master unit, a CPU for detecting a security abnormality signal from an alarm alarm device, and a security abnormality signal. When monitoring the transmission level and reception level of a hands-free call that is controlled by the detected CPU and is performed between the central entrance and the control room main unit, the transmission is performed when the transmission level is lower than the reception level. While the amplification factor of the transmission side variable gain amplifier that varies the amplification factor of the speech is reduced and / or the amplification factor of the reception side variable gain amplifier that varies the amplification factor of the reception factor is increased, the transmission level is equal to the reception level. The transmission / reception for increasing the amplification factor of the transmission side variable gain amplifier and / or decreasing the amplification factor of the reception side variable gain amplifier when the comparison is high. A level adjusting circuit is controlled by a CPU that detect security abnormality signal, bypassing the receiving side of the handset level adjusting circuit, any received voice during a call and a receiver bypass circuit for output from the speaker Yes.

In addition, the collective housing intercom system of the present invention includes a collective entrance machine installed at the entrance of the collective housing, a control room base unit installed in the control room of the collective housing, and a collective entrance machine installed in each dwelling unit of the collective housing. Or to detect a security abnormality that occurred in each dwelling unit and to output a security abnormality signal to the interphone master unit and to sound an alarm sound for hands-free communication with the control unit base unit And a controller for performing call control and call control between the central entrance or management room master and the intercom master. This intercom master unit has a microphone and speaker for hands-free communication with the central entrance or control room master unit, a CPU for detecting a security abnormality signal from an alarm alarm device, and a security abnormality signal. When monitoring the transmission level and reception level of a hands-free call that is controlled by the detected CPU and is performed between the central entrance and the control room main unit, the transmission is performed when the transmission level is lower than the reception level. Transmitter side gain variable amplifier that varies talk amplification level Decrease amplification level and / or increase gain of receiver side gain variable amplifier that varies receive amplification level, while send level is compared with received level The transmission / reception to increase the amplification of the variable gain amplifier on the transmission side and / or to decrease the amplification of the variable gain amplifier on the reception side And Bell adjusting circuit is controlled by a CPU that detect security abnormality signal, bypassing the receiving side of the handset level adjusting circuit, and the reception bypass circuit for outputting any received voice from the speaker during a call, receiving a bypass circuit A reception level adjustment circuit for adjusting the reception level when the is operated.

In addition, the collective housing intercom system of the present invention includes a collective entrance machine installed at the entrance of the collective housing, a control room base unit installed in the control room of the collective housing, and a collective entrance machine installed in each dwelling unit of the collective housing. Or to detect a security abnormality that occurred in each dwelling unit and to output a security abnormality signal to the interphone master unit and to sound an alarm sound for hands-free communication with the control unit base unit And a controller for performing call control and call control between the central entrance or management room master and the intercom master. This intercom master unit has a microphone and speaker for hands-free communication with the central entrance or control room master unit, a CPU for detecting a security abnormality signal from an alarm alarm device, and a security abnormality signal. When monitoring the transmission level and reception level of a hands-free call that is controlled by the detected CPU and is performed between the central entrance and the control room main unit, the transmission is performed when the transmission level is lower than the reception level. While the amplification factor of the transmission side variable gain amplifier that varies the amplification factor of the speech is reduced and / or the amplification factor of the reception side variable gain amplifier that varies the amplification factor of the reception factor is increased, the transmission level is equal to the reception level. The transmission / reception for increasing the amplification factor of the transmission side variable gain amplifier and / or decreasing the amplification factor of the reception side variable gain amplifier when the comparison is high. A level adjusting circuit is controlled by a CPU that detect security abnormality signal, bypassing the receiving side of the handset level adjusting circuit, and the reception bypass circuit for outputting any received voice from the speaker during a call, receiving a bypass circuit A reception line control circuit for cutting off the reception side of the transmission / reception level adjustment circuit when is operated.

  According to the housing complex intercom system of the present invention, an alarm sound that is sounded from an alarm alarm device that has detected a security abnormality and is input to the microphone of the intercom master unit is transmitted to a transmission system filter circuit such as a band elimination filter or notch. Transmission / reception level adjustment that monitors the transmission level and reception level of hands-free calls performed between the central entrance and the control room main unit by removing it through the transmission system filter circuit configured by the filter The circuit can vary the amplification level of the transmission and / or reception in accordance with the transmission level and the reception level without being affected by the alarm sound. Hands-free communication with the entrance machine or the control room master is secured.

  Further, according to the apartment house intercom system of the present invention, the transmission level of the alarm sound and the transmission level of the transmission sound that is sounded from the alarm notification device that has detected the security abnormality and is input to the microphone of the intercom master unit is adjusted. The transmission / reception level adjustment circuit that monitors the transmission level and reception level of hands-free calls with the central entrance or control room master unit by adjusting the level to be low via the circuit The transmission level and the amplification level of the transmission and / or reception according to the reception level can be varied without being affected, and even at the time of alarming, the intercom base unit or the control room Hands-free communication with the machine is secured.

  In addition, according to the apartment house intercom system of the present invention, the reception level adjustment circuit is used to adjust the reception level of the received voice transmitted from the collective entrance machine or the control room parent machine in order to make a call with the interphone parent machine. The transmission / reception level adjustment circuit that monitors the transmission level and reception level of hands-free calls performed between the central entrance and the control room main unit detected a security error. It is possible to vary the transmission level and / or reception amplification level according to the transmission level and the reception level without being affected by the alarm sound that is sounded from the alarm alarm and input to the microphone of the intercom master unit. Even when a notification is issued, a hands-free call between the central entrance and the management room master is secured in the intercom master.

  Further, according to the apartment house intercom system of the present invention, the incoming voice transmitted from the collective entrance machine or the control room parent machine to make a call with the interphone parent machine is being communicated via the reception bypass circuit. No adjustment is made by the transmission / reception level adjustment circuit that monitors the transmission level and reception level of hands-free calls performed between the main entrance and the control room main unit by outputting from the speaker as any received voice in In both cases, it is not affected by the alarm sound that is sounded from the alarm alarm device that detects the security abnormality and is input to the microphone of the intercom master unit. Hands-free communication with the machine is secured.

  Further, according to the apartment house intercom system of the present invention, the incoming voice transmitted from the collective entrance machine or the control room parent machine to make a call with the interphone parent machine is being communicated via the reception bypass circuit. As an arbitrary received voice in the system, the received voice is output from the speaker, and the reception level of the received voice is adjusted to be higher via the incoming level adjustment circuit of the interphone master. Without being adjusted by the transmission / reception level adjustment circuit that monitors the transmission level and reception level of hands-free calls between the two, it is sounded from the alarm notifier that detected the security abnormality and input to the microphone of the intercom master unit It is not affected by the alarm sound, or it is not affected by the alarm sound. / Or the amplification level of the incoming call can be varied via the transmission / reception level adjustment circuit, and even when an alarm is triggered, a hands-free call between the central entrance unit or the control room base unit can be performed at the intercom base unit. Secured.

  Furthermore, according to the multi-dwelling house intercom system of the present invention, the received voice transmitted from the multi-purpose entrance unit or the control room base unit to make a call with the intercom base unit is being communicated via the reception bypass circuit. Hands-free between the main entrance and the control room main unit by outputting the received voice from the speaker as an arbitrary incoming voice and blocking the transmission of the incoming voice to the transmission / reception level adjustment circuit by the reception line control circuit The adjustment by the transmission / reception level adjustment circuit that monitors the transmission level and reception level of a call can be adjusted regardless of fluctuations in the reception level. Even when the alarm is triggered without being affected by the input alarm sound, Or hands-free conversation can be secured between the control room master unit.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment to which an apartment house intercom system of the present invention is applied will be described below with reference to the drawings.

  FIG. 1 is a block diagram illustrating a configuration of an intercom base phone 3a, 3b,... As a first configuration example in a collective housing intercom system according to an embodiment of the present invention.

  The collective housing intercom system shown in the block diagram of FIG. 1 is installed at the entrance (collective entrance) of a collective housing, and visitors are located in specific dwelling units among the 101 units, 102 units, and so on. Set up in the entrance hall 1 for calling the residents in the room to make a call (hands-free call or handset call) and the management room of the apartment house, the call from the visitor was notified and responded to this call Management for managers to make calls (hands-free calls or handset calls) and for managers to call and call (residents-free calls or handset calls) with residents in rooms in specific units It is installed in the room master unit 2 and each dwelling unit of the apartment, here, the 101 room, the 102 room, etc., respectively. The resident who has confirmed this call responds to make a hands-free call, and the resident calls with the administrator to make a hands-free call (multiple) interphone master units 3a, 3b,. .. and security (such as sensing and agreeing) such as gas leaks, water leaks, fires, etc. occurring in each dwelling unit of the apartment house, and security for the intercom master units 3a, 3b,. The alarm notifiers 4a, 4b,... For outputting an abnormal signal and generating an alarm sound indicating the content of the detected security abnormality, and the collective entrance machine 1 or the management room master unit 2 And a controller 5 for performing call control and call control with the interphone master units 3a, 3b,.

  In the block diagram of FIG. 1, the interphone master units 3a, 3b,... As the first configuration example have the same configuration, and alarm alarm devices 4a, 4b,. .. Call signal, voice signal, and various control signals (detailed) between the interface 30 (hereinafter referred to as alarm alarm side I / F) 30 for receiving a security abnormality signal from and the controller 5 And the like (hereinafter referred to as “controller side I / F”) 31 and a call from the collective entrance machine 1 by a visitor or a call from the management room base unit 2 by an administrator, A call button 32 operated by a resident who has confirmed these calls to enter a hands-free call, a transmission / reception function (not described in detail) of the central entrance 1 or a transmission / reception function (detailed) of the control room master unit 2 Without A microphone 33 and a speaker 34 for inputting / outputting voices (sending voices and incoming voices) for performing hands-free calls to / from the mobile phone, a call from the collective entrance 1 by a visitor, or a control room base unit by a manager Controlled by a CPU 41 described later that detects a call from 2 or a CPU 41 described later that detects a security abnormality signal, there is a call from the collective entrance 1 by a visitor, or a call from the management room master 2 by an administrator. ROM in which a ringing sound (including a voice message) and a warning sound (including a voice message) indicating the contents of the security abnormality detected by the alarming devices 4a, 4b,. (Read Only Memory), RAM (Random Access Memory), etc., and a ringing tone (including a voice message) read from the memory 35, It is controlled by an amplifier (hereinafter referred to as a notification amplifier) 36 for amplifying a report sound (including a voice message) and emitting / sounding it from the speaker 34, and a CPU 41 (described later) that detects the operation of the call button 32, Monitor the transmission level and reception level of hands-free calls performed between the transmission / reception function of the central entrance 1 (not detailed) or the transmission / reception function of the management room master unit 2 (not detailed); Transmission / reception level adjustment provided with transmission side variable gain amplifier 37a and reception side variable gain amplifier 37b for varying the amplification degree of transmission and / or reception, that is, amplification gain, according to the transmission level and reception level. An amplifier (hereinafter referred to as a receiving amplifier) that is interposed between the circuit 37, the receiving side variable gain amplifier 37a of the transmitting / receiving level adjusting circuit 37, and the speaker 34, and amplifies the receiving level. It is called an amplifier. ) 38 and the microphone 33 and the transmission side variable gain amplifier 37a of the transmission / reception level adjustment circuit 37, and is controlled by a CPU 41 (to be described later) that detects a security abnormality signal, and alarm alarms 4a and 4b in the self-dwelling unit. ,...,... Are controlled by a transmission system filter circuit 39 for removing an alarm sound input to the microphone 33 and a CPU 41 (described later) that detects the operation of the call button 32. And 4-line / 2-line conversion of audio signals (transmission audio signal and reception audio signal) transmitted and received between the transmission side variable gain amplifier 37a and the reception side variable gain amplifier 37b of the transmission / reception level adjustment circuit 37, respectively. The hybrid circuit 40 for 2-wire / 4-wire conversion, the call signal from the collective entrance 1 or the control room master 2 and the alarm report connected to the interphone master of the own station Vessels 4a, 4b, and detect security abnormality signal from ..., and a CPU41 for controlling each component of the intercom master unit, respectively.

  In the interphone master units 3a, 3b,... Shown in the block diagram of FIG. 1, the transmission filter circuit 39 is configured by band elimination or a notch filter.

  In the collective housing intercom system according to the embodiment of the present invention in which the interphone master units 3a, 3b,... Are configured as the first configuration example shown in the block diagram of FIG. This will be described as an example.

  In the block diagram of FIG. 1, in each of the dwelling units of the apartment house, here, a security abnormality occurs in the 101 room. For example, when a gas leak occurs, the alarm alarm 4a that detects this security abnormality automatically A security abnormality signal indicating that a gas leak has occurred in the dwelling unit (room 101) is generated and output to the intercom master unit 3a, and an alarm is given to the effect that a gas leak has occurred in the self-dwelling unit (room 101). Sounds, for example, an alarm sound such as “Poopu”. Further, the security abnormality signal output from the alarm notification device 4a is received by the alarm notification device side I / F 30 of the intercom master unit 3a, and then transmitted to the CPU 41.

  The CPU 41 of the intercom base unit 3a detects that a gas leak has occurred in the self-dwelling unit (room 101) based on the security abnormality signal from the alarm notification device 4a, and an alarm sound (including a voice message) to that effect. ) Is read from the memory 35. Further, the alarm sound (including the voice message) read from the memory 35 is amplified through the notification amplifier 36, and then, for example, an alarm sound (voice message such as “Pooh, gas leak occurred”). And a warning notification is given to the occupants in the room 101.

  The controller 5 detects that a gas leak has occurred in the room 101 based on an alarm signal generated by the CPU 41 of the interphone master unit 3a (not described in detail). Information on security anomalies such as the main entrance unit 1, the management unit base unit 2, the intercom base unit installed in each dwelling unit on the first floor, and the intercom base unit installed in room 201, which is directly above floor 101 It is also possible to send an alarm message to a predetermined device.

  Next, in the event of a security abnormality in which the alarm sound is intermittently performed by the alarm alarm device 4a as described above, a visitor who is at the entrance of the apartment or is in the management room of the apartment An administrator performs a predetermined call operation (not detailed) to call a resident in the room 101, or an administrator who confirms the above-mentioned alarm transfer performs a predetermined response operation (details). In this case, when the administrator performs a predetermined call operation, a call signal is generated to which a master unit number (not detailed) for designating the interphone master unit 3a is added. This call signal is sent from the management room main unit 2 to the control unit 5 through the control unit side I / F 31 (31, 31,...) Of all the interphone main units 3a, 3b,. 41,...).

  The CPUs 41 (41, 41,...) Of all interphone master units 3a, 3b,... Each have a master unit number added to a call signal from the control room master unit 2 and their own interphone master units. Check with the parent machine number of. Here, only the CPU 41 of the intercom base unit 3a has the same base unit number. Upon detecting this, the CPU 41 reads from the memory 35 a ringing sound (voice message) indicating that there is a call from a manager in the apartment room. In addition, the ringing tone (including the voice message) read from the memory 35 is amplified through the notification amplifier 36, and then, for example, a ringing tone (voice message such as “ping pong, call from the manager”). Sound is emitted from the speaker 34 (within a certain period of time), and a call notification is made to the occupants in the room 101.

  Next, an interphone is used for a resident in the room 101 that has confirmed the call notification as described above to enter a call (hands-free call) with the manager in the apartment room. When the call button 32 of the base unit 3 is operated, the CPU 41 continuously detecting the security abnormality signal from the alarm notification device 4a together with the response operation, and the transmission / reception level adjustment circuit 37, the transmission system filter circuit 39, the hybrid circuit. 40 is controlled, the microphone 33 used by the resident, the transmission filter circuit 39, the transmission side gain variable amplifier 37a of the transmission / reception level adjustment circuit 37, the hybrid circuit 40, the controller side I / F 31, and the controller 5 From the call path to the receiving function (not described in detail) of the management room master unit 2 used by the manager through the communication and the transmission function (not described in detail) of the management room master unit 2 used by the manager. Call to the speaker 34 used by the resident through the machine 5, the controller side I / F 31 of the interphone master unit 3 a, the hybrid circuit 40, the reception side variable gain amplifier 37 b of the transmission / reception level adjustment circuit 37, and the reception amplifier 38. Each road is formed.

  Here, an interphone is used when a resident who is in the room 101 performs a hands-free call with the manager who is in the management room of the apartment house via each of the above-described formed call paths. The microphone 33 of the master unit 3a receives not only the resident's transmitted voice but also an alarm sound that is sounded intermittently from the alarm alarm device 4a in the self-dwelling unit (room 101). In addition, the transmission filter circuit 39 of the interphone master unit 3a, here, the transmission filter circuit 39 configured by band elimination or notch filter, removes the alarm sound input to the microphone 33, and Only the transmitted voice signal that is appropriately processed is output to the transmission side gain variable amplifier 37a of the transmission / reception level adjustment circuit 37.

  Further, the transmission / reception level adjustment circuit 37 of the intercom master unit 3a is configured to transmit the transmission level of the resident's transmission voice signal from which the alarm sound has been removed via the transmission filter circuit 39 and the two lines via the hybrid circuit 40. The reception level of the reception voice signal from the visitor having undergone the / 4 line conversion is monitored, and the amplification level of the transmission side gain variable amplifier 37a and / or the reception side variable gain amplifier according to the transmission level and the reception level. The amplification degree of 37b is varied. Here, when the transmission level of the utterance voice signal of the resident whose alarm sound has been removed through the transmission filter circuit 39 is lower than the reception level of the reception voice signal from the manager, the transmission is performed. Control is performed such that the amplification degree of the talk side variable gain amplifier 37a is decreased and / or the amplification degree of the reception side variable gain amplifier 37b is increased. On the other hand, when the transmission level of the utterance voice signal of the resident whose alarm sound has been removed through the transmission filter circuit 39 is higher than the reception level of the reception voice signal from the manager, The gain of the side variable gain amplifier 37a is increased and / or the gain of the reception side variable gain amplifier 37b is controlled to be decreased, so that the alarm notification device 4a that has detected the security abnormality is sounded to the microphone 33. And the amplification level of the transmission and / or reception in accordance with the transmission level and the reception level can be varied without being affected by the alarm sound input, and the interphone base unit 3a can communicate with the control room base unit 2. Hands-free calls are secured.

  In the first operation example, the call destination of the intercom base unit 3a in the event of security abnormality where the alarm sound is intermittently performed by the alarm alarm device 4a as described above is placed in the control room of the apartment house. Although explained as a manager in the room, the present invention is not limited to this. When a visitor who calls a resident in the room 101 is called by a visitor at the entrance of an apartment house In addition, the transmission level and the amplification level of the reception are varied according to the transmission level and the reception level without being affected by the alarm sound that is sounded from the alarm notification device 4a that has detected the security abnormality and is input to the microphone 33. Therefore, a hands-free call with the collective entrance machine 1 is ensured in the intercom base unit 3a. Further, the transmission system filter circuit 39 of the interphone master unit 3a is controlled by the CPU 41 that has detected the security abnormality signal, but is not limited to this CPU 41, and the alarm notification side that has received the security abnormality signal from the alarm notification device 4a. It can also be controlled by the I / F 30.

  Next, as apparent from the first operation example described above, when a gas leak occurred in the No. 101 room, the alarm alarm 4a that detected this security abnormality was sounded and input to the microphone 33. A separate multi-family house intercom system having the same effect of ensuring a hands-free call with the management room base unit 2 (or the collective entrance unit 1) in the interphone base unit 3a without being affected by the alarm sound is applied. In this regard, a second configuration example of the interphone master units 3a, 3b,... Is shown in the block diagram of FIG. In the block diagram of FIG. 2, the same reference numerals are given to the components having the same functions as those of the first configuration example, and the description thereof is omitted.

  The interphone master units 3a, 3b,... Shown in the block diagram of FIG. 2 have the same configuration, and an alarm alarm side I / F 30, a controller side I / F 31, a call button 32, a microphone 33, a speaker 34, It is interposed between the memory 35, the notification amplifier 36, the transmission / reception level adjustment circuit 37, the reception amplifier 38, the hybrid circuit 40, and the microphone 33 and the transmission side gain variable amplifier 37a of the transmission / reception level adjustment circuit 37. Controlled by a CPU 51 (to be described later) that detects the signal and connected to a transmission level adjustment circuit 50 for adjusting a transmission level, a call signal from the central entrance unit 1 or the control room base unit 2, and an interphone base unit of the own station To detect the security abnormality signal from the alarm alarm devices 4a, 4b,..., And control each part of the interphone master unit. And a CPU51.

  In the collective housing intercom system according to the embodiment of the present invention in which the interphone master units 3a, 3b,... Are configured as the second configuration example shown in the block diagram of FIG. This will be described as an example.

  In the block diagram of FIG. 2, a gas leak occurs in the room 101, an alarm sound is generated from the alarm notification device 4a that detects this security abnormality, and an alarm notification is given by the intercom master unit 3a. Furthermore, in the event of a security abnormality in which the alarm sound is intermittently performed by the alarm alarm device 4a as described above, a call from a manager who is present in the management room of the apartment house is called by the interphone master unit 3a. Since the operation until the call notification is made is similar to the first operation example described above, the description thereof is omitted.

  In the block diagram of FIG. 2, a resident in the room 101 confirms a call notification that there is a call from the manager in the apartment room of the apartment house, and a call is made between the manager in the room 101 When the call button 32 of the intercom base unit 3a is operated to enter (hands-free call), the CPU 51 continuously detects the security abnormality signal from the alarm alarm device 4a together with this response operation, and the transmission / reception level adjustment circuit 37. The hybrid circuit 40 and the transmission level adjustment circuit 50 are respectively controlled. From the microphone 33 used by the resident, the transmission level adjustment circuit 50, the transmission side gain variable amplifier 37a of the transmission / reception level adjustment circuit 37, the hybrid circuit 40, Call path to the receiving function (not detailed) of the control room master unit 2 used by the manager via the controller side I / F 31 and the controller 5, and used by the manager From the transmission function (not described in detail) of the control room base unit 2 to the control unit 5, the controller side I / F 31 of the intercom base unit 3a, the hybrid circuit 40, and the reception side variable gain amplifier 37b of the transmission / reception level adjustment circuit 37 Then, a call path to the speaker 34 used by the resident is formed through the receiver amplifier 38.

  Here, an interphone is used when a resident who is in the room 101 performs a hands-free call with the manager who is in the management room of the apartment house via each of the above-described formed call paths. The microphone 33 of the master unit 3a receives not only the resident's transmitted voice but also an alarm sound that is sounded intermittently from the alarm alarm device 4a in the self-dwelling unit (room 101). Further, the transmission level adjustment circuit 50 of the interphone master unit 3a is a resident's transmission voice input to the microphone 33, and an audio signal obtained by superimposing a signal processing transmission voice signal and an alarm sound as appropriate. After adjusting the transmission level of the voice signal (hereinafter referred to as a warning sound superimposed audio signal) to be low, it is output to the transmission side variable gain amplifier 37a of the transmission / reception level adjustment circuit 37.

  Also, the transmission / reception level adjustment circuit 37 of the intercom base unit 3 a performs the transmission level of the alarm sound superimposed voice signal adjusted to a low level via the transmission level adjustment circuit 50 and the 2-line / 4-line conversion via the hybrid circuit 40. The reception level of the received voice signal from the visitor is monitored, and the amplification level of the transmission side variable gain amplifier 37a and / or the amplification level of the reception side variable gain amplifier 37b according to the transmission level and the reception level. Is variable. Here, when the transmission level of the warning sound superimposing voice signal adjusted low through the transmission level adjustment circuit 50 is lower than the reception level of the reception voice signal from the manager, the transmission side gain is variable. Control is performed so that the amplification degree of the amplifier 37a is reduced and / or the amplification degree of the receiving side variable gain amplifier 37b is increased. On the other hand, when the transmission level of the warning sound superimposing voice signal adjusted low via the transmission level adjustment circuit 50 is higher than the reception level of the reception voice signal from the manager, the transmission side gain variable amplifier The amplification degree of 37a is increased and / or the amplification degree of the receiving side variable gain amplifier 37b is controlled to be reduced, so that the alarm notification device 4a that has detected the security abnormality is sounded and inputted to the microphone 33. It is possible to vary the transmission level and / or reception amplification level according to the transmission level and the reception level without being affected by the alarm sound, and the hands-free communication with the control room base unit 2 in the intercom base unit 3a. Is secured.

  In the second operation example, the call destination of the intercom base unit 3a in the event of security abnormality where the alarm sound is intermittently performed by the alarm alarm device 4a as described above is placed in the control room of the apartment house. Although explained as a manager in the room, the present invention is not limited to this. When a visitor who calls a resident in the room 101 is called by a visitor at the entrance of an apartment house In addition, the transmission level and the amplification level of the reception are varied according to the transmission level and the reception level without being affected by the alarm sound that is sounded from the alarm notification device 4a that has detected the security abnormality and is input to the microphone 33. Therefore, a hands-free call with the collective entrance machine 1 is ensured in the intercom base unit 3a. The transmission level adjustment circuit 50 of the interphone master unit 3a is controlled by the CPU 51 that detects the security abnormality signal. However, the transmission level adjustment circuit 50 is not limited to the CPU 51, and the alarm notification side that receives the security abnormality signal from the alarm notification device 4a. It can also be controlled by the I / F 30.

  Next, as is clear from the first and second operation examples described above, when a gas leak occurs in the 101st room, the alarm is transmitted from the alarm notification device 4a that has detected this security abnormality and is sent to the microphone 33. A separate apartment intercom having the same effect that the interphone master unit 3a secures a hands-free call with the management room master unit 2 (or the collective entrance unit 1) without being affected by the alarm sound input. In applying the system, a third configuration example of the interphone master units 3a, 3b,... Is shown in the block diagram of FIG. In the block diagram of FIG. 3, the same reference numerals are given to the components having the same functions as those of the first and second configuration examples, and the description thereof is omitted.

  The interphone master units 3a, 3b,... Shown in the block diagram of FIG. 3 have the same configuration, respectively, an alarm alarm side I / F 30, a controller side I / F 31, a call button 32, a microphone 33, a speaker 34, It is interposed between the memory 35, the notification amplifier 36, the transmission / reception level adjustment circuit 37, the reception amplifier 38, the hybrid circuit 40, and the reception side variable gain amplifier 37b of the hybrid circuit 40 and the transmission / reception level adjustment circuit 37. Controlled by a CPU 61 (to be described later) that detects the signal, it is connected to a reception level adjustment circuit 60 for adjusting the reception level, a call signal from the central entrance unit 1 or the control room base unit 2, and an interphone base unit of its own station Detects security abnormality signals from the alarm notification devices 4a, 4b,... And controls each component of the interphone master unit. And a CPU61 for.

  In the collective housing intercom system according to the embodiment of the present invention in which the interphone master units 3a, 3b,... Are configured as the third configuration example shown in the block diagram of FIG. This will be described as an example.

  In the block diagram of FIG. 3, a gas leak occurs in the room 101, an alarm sound is sounded from the alarm notification device 4a that has detected this security abnormality, and an alarm notification is given by the intercom master unit 3a. Furthermore, in the event of a security abnormality in which the alarm sound is intermittently performed by the alarm alarm device 4a as described above, a call from a manager who is present in the management room of the apartment house is called by the interphone master unit 3a. Since the operation until the call notification is made is the same as the first and second operation examples described above, the description thereof will be omitted.

  In the block diagram of FIG. 3, a resident in the room 101 who has confirmed a call notification that there is a call from a manager in the apartment room of the apartment house makes a call with the manager. When the call button 32 of the interphone master unit 3a is operated to enter (hands-free call), the CPU 61 continuously detects a security abnormality signal from the alarm alarm device 4a together with this response operation, and the transmission / reception level adjustment circuit 37. The hybrid circuit 40 and the reception level adjustment circuit 60 are respectively controlled, and the microphone 33 used by the resident uses the transmission side gain variable amplifier 37a of the transmission / reception level adjustment circuit 37, the hybrid circuit 40, the controller side I / F 31, and the control. The communication path to the receiving function (not detailed) of the management room master unit 2 used by the manager via the machine 5, and the transmitter of the management room base unit 2 used by the manager From the controller 5 (not detailed), the controller side I / F 31 of the intercom master unit 3a, the hybrid circuit 40, the reception level adjustment circuit 60, the reception side variable gain amplifier 37b of the transmission / reception level adjustment circuit 37, and the reception amplifier The communication path to the speaker 34 used by the resident is formed through 38.

  Here, an interphone is used when a resident who is in the room 101 performs a hands-free call with the manager who is in the management room of the apartment house via each of the above-described formed call paths. The microphone 33 of the master unit 3a receives not only the resident's transmitted voice but also an alarm sound that is sounded intermittently from the alarm alarm device 4a in the self-dwelling unit (room 101). In addition, the reception level adjustment circuit 60 of the intercom master unit 3a is increased in the reception level of the reception voice signal from the administrator who has been converted into the two-line / four-line via the hybrid circuit 40, for example, affected by an alarm sound. After the reception level is adjusted to be high so that there is no output, it is output to the reception side variable gain amplifier 37 b of the transmission / reception level adjustment circuit 37.

  Further, the transmission / reception level adjustment circuit 37 of the interphone master unit 3a is a resident's transmission voice input to the microphone 33, and an alarm sound obtained by superimposing a signal-processed transmission voice signal and an alarm sound as appropriate. The reception level of the reception voice signal from the administrator, which is adjusted so as not to be affected by the warning sound, is monitored via the transmission level and reception level adjustment circuit 60 of the superimposed voice signal. The amplification factor of the transmission side variable gain amplifier 37a and / or the amplification factor of the reception side variable gain amplifier 37b is varied according to the reception level. Here, the transmission level of the warning sound superimposed voice signal from the microphone 33 is compared with the reception level of the reception voice signal from the manager adjusted to be high so as not to be affected by the warning sound via the reception level adjustment circuit 60. If it is low, the gain of the transmission side variable gain amplifier 37a is controlled to be small and / or the amplification of the reception side variable gain amplifier 37b is increased. On the other hand, the transmission level of the warning sound superimposed voice signal from the microphone 33 is compared with the reception level of the reception voice signal from the manager adjusted to be high so as not to be affected by the warning sound via the reception level adjustment circuit 60. If the transmission gain is high, the amplification level of the transmission side variable gain amplifier 37a is increased and / or the amplification level of the reception side variable gain amplifier 37b is controlled to be small so that an alarm notification is detected when a security abnormality is detected. It is possible to vary the transmission level and / or the amplification level of the reception according to the transmission level and the reception level without being affected by the alarm sound that is sounded from the device 4a and input to the microphone 33. A hands-free call with the management room base unit 2 is secured.

  In the third operation example, the call destination of the intercom base unit 3a in the event of security abnormality where the alarm sound is intermittently performed by the alarm alarm device 4a as described above is placed in the control room of the apartment house. Although explained as a manager in the room, the present invention is not limited to this. When a visitor who calls a resident in the room 101 is called by a visitor at the entrance of an apartment house In addition, the transmission level and the amplification level of the reception are varied according to the transmission level and the reception level without being affected by the alarm sound that is sounded from the alarm notification device 4a that has detected the security abnormality and is input to the microphone 33. Therefore, a hands-free call with the collective entrance machine 1 is ensured in the intercom base unit 3a. The reception level adjustment circuit 60 of the interphone master unit 3a is controlled by the CPU 61 that detects the security abnormality signal. However, the reception level adjustment circuit 60 is not limited to the CPU 61, and the alarm notification side I that receives the security abnormality signal from the alarm notification device 4a. It can also be controlled by / F30.

  Next, as is apparent from the first to third operation examples described above, when a gas leak occurs in the No. 101 room, the alarm alarm device 4a that has detected this security abnormality is sounded to the microphone 33. A separate apartment intercom having the same effect that the interphone master unit 3a secures a hands-free call with the management room master unit 2 (or the collective entrance unit 1) without being affected by the alarm sound input. In applying the system, a fourth configuration example of the interphone master units 3a, 3b,... Is shown in the block diagram of FIG. In the block diagram of FIG. 4, the same reference numerals are given to the components having the same functions as those of the first to third configuration examples, and the description thereof is omitted.

  The interphone master units 3a, 3b,... Shown in the block diagram of FIG. 4 have the same configuration, and an alarm alarm side I / F 30, a controller side I / F 31, a call button 32, a microphone 33, a speaker 34, The input side is connected between the memory 35, the notification amplifier 36, the transmission / reception level adjustment circuit 37, the reception amplifier 38, the hybrid circuit 40, and the reception side variable gain amplifier 37b of the hybrid circuit 40 and the transmission / reception level adjustment circuit 37. Controlled by a CPU 71 (to be described later) that has detected the security abnormality signal, bypasses the reception line from the hybrid circuit 40 to the reception side variable gain amplifier 37b of the transmission / reception level adjustment circuit 37 (via the reception amplifier 38) to the speaker 34. A switch 70a and an amplifier (hereinafter referred to as bypass bypass) for outputting the received voice signal from the manager. ) The alarm receiver 4a, 4b,... Connected to the reception bypass circuit 70 provided with 70b, the call signal from the collective entrance unit 1 or the control room base unit 2, and the interphone base unit of the own station. And a CPU 71 for detecting a security abnormality signal from each and controlling each component of the interphone master unit.

  In the collective housing intercom system according to the embodiment of the present invention in which the interphone master units 3a, 3b,... Are configured as the fourth configuration example shown in the block diagram of FIG. This will be described as an example.

  In the block diagram of FIG. 4, a gas leak occurs in the room 101, an alarm sound is generated from the alarm notification device 4a that detects this security abnormality, and an alarm notification is performed by the intercom master unit 3a. Furthermore, in the event of a security abnormality in which the alarm sound is intermittently performed by the alarm alarm device 4a as described above, a call from a manager who is present in the management room of the apartment house is called by the interphone master unit 3a. Since the operation until the call notification is made is the same as the first to third operation examples described above, the description thereof will be omitted.

  In the block diagram of FIG. 4, a resident in the room 101 who has confirmed the call notification that there is a call from the manager in the apartment room of the apartment house makes a call with the manager. When the call button 32 of the interphone master unit 3a is operated to enter (hands-free call), the CPU 71 continuously detects a security abnormality signal from the alarm alarm device 4a together with this response operation, and the transmission / reception level adjustment circuit 37. The hybrid circuit 40 and the reception bypass circuit 70 are respectively controlled, and the microphone 33 used by the resident uses the transmission side gain variable amplifier 37a of the transmission / reception level adjustment circuit 37, the hybrid circuit 40, the controller side I / F 31, and the controller. 5, the call path to the reception function (not detailed) of the management room master unit 2 used by the manager via the manager 5, and the transmission function of the management room master unit 2 used by the manager (Not detailed) from the controller 5, the controller side I / F 31 of the intercom master unit 3a, the hybrid circuit 40, the switch 70a in the ON state of the reception bypass circuit 70, the bypass amplifier 70b, and the reception amplifier 38 From the communication path to the speaker 34 used by the person and the transmission function (not described in detail) of the management room base unit 2 used by the manager, the controller 5, the controller side I / F 31 of the interphone base unit 3a, the hybrid A communication path to the speaker 34 used by the occupant is formed through the circuit 40, the reception side variable gain amplifier 37b of the transmission / reception level adjustment circuit 37, and the reception amplifier 38, respectively.

  Here, an interphone is used when a resident who is in the room 101 performs a hands-free call with the manager who is in the management room of the apartment house via each of the above-described formed call paths. The microphone 33 of the master unit 3a receives not only the resident's transmitted voice but also an alarm sound that is sounded intermittently from the alarm alarm device 4a in the self-dwelling unit (room 101). Further, in the reception bypass circuit 70 of the intercom base unit 3a, the bypass amplifier 70b receives the reception from the manager that has been converted to the two-line / four-line via the hybrid circuit 40 and transmitted via the switch 70a in the on state. After amplifying the voice signal (the reception level), it is output to the speaker 34 via the receiver amplifier 38, so that any received voice during a call is output from the speaker 34 without being affected by the alarm sound. Can do.

  Further, the transmission / reception level adjustment circuit 37 of the interphone master unit 3a is a resident's transmission voice input to the microphone 33, and an alarm sound obtained by superimposing a signal-processed transmission voice signal and an alarm sound as appropriate. The transmission level of the superimposed voice signal and the reception level of the reception voice signal from the administrator who has been converted into the two-line / four-line via the hybrid circuit 40 are monitored, and the transmission is performed according to the transmission level and the reception level. The amplification factor of the side gain variable amplifier 37a and / or the amplification factor of the reception side variable gain amplifier 37b is varied. Here, when the transmission level of the warning sound superimposed voice signal from the microphone 33 is lower than the reception level of the reception voice signal from the manager despite the influence of the warning sound, the transmission is performed. Control is performed such that the amplification factor of the variable side gain amplifier 37a is reduced and / or the amplification factor of the variable gain amplifier 37b on the reception side is increased. On the other hand, when the transmission level of the warning sound superimposed voice signal from the microphone 33 is higher than the reception level of the reception voice signal from the manager due to the influence of the warning sound, the transmission side gain variable amplifier 37a The amplification level is increased and / or the amplification level of the reception side variable gain amplifier 37b is controlled to be small, and the reception voice from the manager is output from the speaker 34 at a low reception level that is difficult for the resident to hear. As described above, the reception voice signal from the manager bypassed through the reception bypass circuit 70 is output from the speaker 34 as an arbitrary reception voice during a call without being affected by the alarm sound. In the interphone master unit 3a, a hands-free call with the management room master unit 2 is ensured.

  Note that, in the fourth operation example, the call destination of the intercom base unit 3a in the event of security abnormality in which the alarm sound is intermittently performed by the alarm alarm device 4a as described above is placed in the control room of the apartment house. Although explained as a manager in the room, the present invention is not limited to this. When a visitor who calls a resident in the room 101 is called by a visitor at the entrance of an apartment house In addition, any received voice during a call can be output from the speaker 34 without being affected by the alarm sound that is sounded from the alarm alarm device 4a that has detected a security abnormality and is input to the microphone 33, and the interphone master unit 3a. A hands-free call with the collective entrance machine 1 is ensured. The reception bypass circuit 70 of the intercom master unit 3a is controlled by the CPU 71 that detects the security abnormality signal. However, the reception bypass circuit 70 is not limited to the CPU 71 and is not limited to the CPU 71, but the alarm notification side I / O that receives the security abnormality signal from the alarm notification device 4a. It can also be controlled by F30.

  Next, as is apparent from the first to fourth operation examples described above, when a gas leak occurs in the 101st room, the alarm 33a that has detected this security abnormality is ringed and sent to the microphone 33. A separate apartment intercom having the same effect that the interphone master unit 3a secures a hands-free call with the management room master unit 2 (or the collective entrance unit 1) without being affected by the alarm sound input. In applying the system, a fifth configuration example of the interphone master units 3a, 3b,... Is shown in the block diagram of FIG. In the block diagram of FIG. 5, the same reference numerals are given to the constituent parts having the same functions as those of the first to fourth configuration examples, and the description thereof is omitted.

  The interphone master units 3a, 3b,... Shown in the block diagram of FIG. 5 have the same configuration, and an alarm alarm side I / F 30, a controller side I / F 31, a call button 32, a microphone 33, a speaker 34, Between the memory 35, the notification amplifier 36, the transmission / reception level adjustment circuit 37, the reception amplifier 38, the hybrid circuit 40, the reception bypass circuit 70, and the reception side gain variable amplifier 37b of the hybrid circuit 40 and the transmission / reception level adjustment circuit 37. The reception level adjustment circuit 80 for adjusting the reception level, the call signal from the collective entrance unit 1 or the control room main unit 2 and the interphone parent of the own station, which is controlled by a CPU 81 which will be described later and which detects the security abnormality signal. Detecting a security abnormality signal from the alarm alarm devices 4a, 4b,. And a CPU81 for controlling each component, respectively.

  In the collective housing intercom system according to the embodiment of the present invention in which the interphone master units 3a, 3b,... Are configured as the fifth configuration example shown in the block diagram of FIG. This will be described as an example.

  In the block diagram of FIG. 5, a gas leak occurs in the room 101, an alarm sound is sounded from the alarm notification device 4a that has detected this security abnormality, and an alarm notification is given by the intercom master unit 3a. Furthermore, in the event of a security abnormality in which the alarm sound is intermittently performed by the alarm alarm device 4a as described above, a call from a manager who is present in the management room of the apartment house is called by the interphone master unit 3a. Since the operation until the call notification is made is the same as the first to fourth operation examples described above, the description thereof is omitted.

  In the block diagram of FIG. 5, a resident in the room 101 who has confirmed a call notification that there is a call from a manager in the apartment room of the apartment house makes a call with the manager. When the call button 32 of the intercom base unit 3a is operated to enter the (hands-free call), the CPU 81 continuously detecting the security abnormality signal from the alarm alarm device 4a together with this response operation, and the transmission / reception level adjustment circuit 37. The hybrid circuit 40, the reception bypass circuit 70, and the reception level adjustment circuit 80 are respectively controlled, and the microphone 33 used by the resident uses the transmission side gain variable amplifier 37a of the transmission / reception level adjustment circuit 37, the hybrid circuit 40, and the controller side. The communication path to the reception function (not described in detail) of the management room master unit 2 used by the manager via the I / F 31 and the controller 5, and the manager uses From the transmission function (not described in detail) of the control room base unit 2 to the control unit 5, the controller side I / F 31 of the intercom base unit 3a, the hybrid circuit 40, the on-state switch 70a of the reception bypass circuit 70, and the bypass amplifier 70b, the communication path to the speaker 34 used by the resident through the receiver amplifier 38, and the transmission function (not described in detail) of the management room master unit 2 used by the manager. Call to speaker 34 used by a resident through controller side I / F 31 of 3a, hybrid circuit 40, reception level adjustment circuit 80, reception side gain variable amplifier 37b of transmission / reception level adjustment circuit 37, and reception amplifier 38 Each road is formed.

  Here, an interphone is used when a resident who is in the room 101 performs a hands-free call with the manager who is in the management room of the apartment house via each of the above-described formed call paths. The microphone 33 of the master unit 3a receives not only the resident's transmitted voice but also an alarm sound that is sounded intermittently from the alarm alarm device 4a in the self-dwelling unit (room 101). Further, in the reception bypass circuit 70 of the intercom base unit 3a, the bypass amplifier 70b receives the reception from the manager that has been converted to the two-line / four-line via the hybrid circuit 40 and transmitted via the switch 70a in the on state. After amplifying the voice signal (the reception level), it is output to the speaker 34 via the receiver amplifier 38, so that any received voice during a call is output from the speaker 34 without being affected by the alarm sound. Can do. Furthermore, the reception level adjustment circuit 80 of the intercom master unit 3a is affected by an alarm sound, for example, when the reception level of the reception voice signal from the administrator who has been subjected to the 2-line / 4-line conversion via the hybrid circuit 40 is increased. After the reception level is adjusted to be high so that there is no output, it is output to the reception side variable gain amplifier 37 b of the transmission / reception level adjustment circuit 37.

  Further, the transmission / reception level adjustment circuit 37 of the interphone master unit 3a is a resident's transmission voice input to the microphone 33, and an alarm sound obtained by superimposing a signal-processed transmission voice signal and an alarm sound as appropriate. The reception level of the reception voice signal from the administrator adjusted so as not to be affected by the alarm sound is monitored via the transmission level and reception level adjustment circuit 80 of the superimposed voice signal. The amplification factor of the transmission side variable gain amplifier 37a and / or the amplification factor of the reception side variable gain amplifier 37b is varied according to the reception level. Here, the transmission level of the warning sound superimposed voice signal from the microphone 33 is compared with the reception level of the reception voice signal from the manager adjusted to be high so as not to be affected by the warning sound via the reception level adjustment circuit 80. If it is low, the amplification factor of the transmission side variable gain amplifier 37a is controlled to be small and / or the amplification factor of the reception side variable gain amplifier 37b is controlled, as in the third example of operation. The On the other hand, the transmission level of the warning sound superimposed voice signal from the microphone 33 is compared with the reception level of the reception voice signal from the manager adjusted to be high so as not to be affected by the warning sound via the reception level adjustment circuit 80. If it is high, the amplification factor of the transmission side variable gain amplifier 37a is increased and / or the amplification factor of the reception side variable gain amplifier 37b is controlled to be small, as in the third operation example described above. Although there is a possibility that the received voice from the visitor is output from the speaker 34 at a low reception level that is difficult for the resident to hear, as described above, from the visitor bypassed via the reception bypass circuit 70 The received voice signal can be output from the speaker 34 as an arbitrary received voice during a call without being affected by the alarm sound, and the intercom master unit 3a can control the control room master unit 2 Hands-free conversation is secured between.

  In the fifth operation example, the call destination of the intercom base unit 3a in the event of security abnormality where the alarm sound as described above is intermittently performed by the alarm alarm device 4a is placed in the control room of the apartment house. Although explained as a manager in the room, the present invention is not limited to this. When a visitor who calls a resident in the room 101 is called by a visitor at the entrance of an apartment house In addition, any received voice during a call can be output from the speaker 34 without being affected by the alarm sound that is sounded from the alarm alarm device 4a that has detected a security abnormality and is input to the microphone 33, and the interphone master unit 3a. A hands-free call with the collective entrance machine 1 is ensured. Further, the reception bypass circuit 70 and the reception level adjustment circuit 80 of the interphone master unit 3a are controlled by the CPU 81 that detects the security abnormality signal, but are not limited to the CPU 81, and receive the security abnormality signal from the alarm notification device 4a. It can also be controlled by the alarm alarm side I / F 30.

  Next, as is clear from the first to fifth operation examples described above, when a gas leak occurs in the 101st room, the alarm is transmitted from the alarm notification device 4a that has detected this security abnormality to the microphone 33. A separate apartment intercom having the same effect that the interphone master unit 3a secures a hands-free call with the management room master unit 2 (or the collective entrance unit 1) without being affected by the alarm sound input. In applying the system, a sixth configuration example of the interphone master units 3a, 3b,... Is shown in the block diagram of FIG. In the block diagram of FIG. 6, the same reference numerals are given to the components having the same functions as those of the first to fifth configuration examples, and the description thereof is omitted.

  The interphone master units 3a, 3b,... Shown in the block diagram of FIG. 6 have the same configuration, and an alarm alarm side I / F 30, a controller side I / F 31, a call button 32, a microphone 33, a speaker 34, Between the memory 35, the notification amplifier 36, the transmission / reception level adjustment circuit 37, the reception amplifier 38, the hybrid circuit 40, the reception bypass circuit 70, and the reception side gain variable amplifier 37b of the hybrid circuit 40 and the transmission / reception level adjustment circuit 37. A reception line control circuit 90 for controlling / intersecting the reception line from the hybrid circuit 40 to the reception-side variable gain amplifier 37b of the transmission / reception level adjustment circuit 37, which is controlled by a CPU 91 to be described later that detects the security abnormality signal. Connected to the calling signal from the main entrance 1 or the control room master 2 or to the interphone master of your station Broadcast annunciator 4a, 4b, and detect security abnormality signal from ..., and a CPU91 for controlling each component of the intercom master unit, respectively.

  In the collective housing intercom system according to the embodiment of the present invention in which the interphone master units 3a, 3b,... Are configured as the sixth configuration example shown in the block diagram of FIG. This will be described as an example.

  In the block diagram of FIG. 6, a gas leak occurs in the room 101, an alarm sound is generated from the alarm notification device 4a that detects this security abnormality, and an alarm notification is performed by the intercom master unit 3a. Furthermore, in the event of a security abnormality in which the alarm sound is intermittently performed by the alarm alarm device 4a as described above, a call from a manager who is present in the management room of the apartment house is called by the interphone master unit 3a. Since the operation until the call notification is made is the same as the first to fifth operation examples described above, the description thereof is omitted.

  In the block diagram of FIG. 6, a resident in the room 101 confirms a call notification that there is a call from a manager in the apartment room, and a call is made between the manager and the manager. When the call button 32 of the interphone master unit 3a is operated to enter (hands-free call), the CPU 91 continuously detects a security abnormality signal from the alarm alarm device 4a along with this response operation, and the transmission / reception level adjustment circuit 37. The hybrid circuit 40, the reception bypass circuit 70, and the reception line control circuit 90 are respectively controlled, and the microphone 33 used by the resident uses the transmission side gain variable amplifier 37a of the transmission / reception level adjustment circuit 37, the hybrid circuit 40, and the controller side. The communication path to the reception function (not described in detail) of the management room master unit 2 used by the manager via the I / F 31 and the controller 5, and the manager uses From the transmission function (not described in detail) of the control room base unit 2 to the control unit 5, the controller side I / F 31 of the intercom base unit 3a, the hybrid circuit 40, the on-state switch 70a of the reception bypass circuit 70, and the bypass amplifier 70b, and a communication path to the speaker 34 used by the resident through the receiver amplifier 38. On the other hand, the communication path from the hybrid circuit 40 to the reception side variable gain amplifier 37b of the transmission / reception level adjustment circuit 37, that is, the reception line is cut off.

  Here, an interphone is used when a resident who is in the room 101 performs a hands-free call with the manager who is in the management room of the apartment house via each of the above-described formed call paths. The microphone 33 of the master unit 3a receives not only the resident's transmitted voice but also an alarm sound that is sounded intermittently from the alarm alarm device 4a in the self-dwelling unit (room 101). Further, in the reception bypass circuit 70 of the intercom base unit 3a, the bypass amplifier 70b receives two-line / four-line conversion via the hybrid circuit 40 and receives a call from a visitor transmitted via the ON switch 70a. After amplifying the voice signal (the reception level), it is output to the speaker 34 via the receiver amplifier 38, so that any received voice during a call is output from the speaker 34 without being affected by the alarm sound. Can do.

  Further, the transmission / reception level adjustment circuit 37 of the interphone master unit 3a is a resident's transmission voice input to the microphone 33, and an alarm sound obtained by superimposing a signal-processed transmission voice signal and an alarm sound as appropriate. The transmission level of the superimposed voice signal and the reception level of the reception voice signal from the manager transmitted through the reception line control circuit 90 after the four-line / two-line conversion through the hybrid circuit 40 are monitored. As in the first to fifth operation examples described above, the amplification factor of the transmission-side gain variable amplifier 37a and / or the amplification factor of the reception-side gain variable amplifier 37b is variable according to the transmission level and reception level. However, since the reception line from the hybrid circuit 40 to the reception side variable gain amplifier 37b of the transmission / reception level adjustment circuit 37 is cut off, the transmission level of the alarm sound superimposed voice signal from the microphone 33 is cut off. The via transmission side variable gain amplifier 37a regardless of any changes in the reception level of the reception voice from janitor to amplify. On the other hand, the reception voice signal from the visitor bypassed through the reception bypass circuit 70 as described above can be output from the speaker 34 as an arbitrary reception voice during a call without being affected by the alarm sound, and the intercom In the master unit 3a, a hands-free call with the management room master unit 2 is secured.

  In the sixth operation example, the call destination of the intercom base unit 3a in the event of security abnormality in which the alarm sound as described above is intermittently performed by the alarm alarm device 4a is placed in the control room of the apartment house. Although explained as a manager in the room, the present invention is not limited to this. When a visitor who calls a resident in the room 101 is called by a visitor at the entrance of an apartment house In addition, any received voice during a call can be output from the speaker 34 without being affected by the alarm sound that is sounded from the alarm alarm device 4a that has detected a security abnormality and is input to the microphone 33, and the interphone master unit 3a. A hands-free call with the collective entrance machine 1 is ensured. In addition, the reception bypass circuit 70 and the reception line control circuit 90 of the interphone master unit 3a are controlled by the CPU 91 that detects the security abnormality signal, but are not limited to the CPU 91, and receive the security abnormality signal from the alarm notification device 4a. It can also be controlled by the alarm alarm side I / F 30.

  In the collective housing intercom system according to the embodiment of the present invention, according to the first to sixth operation examples to which the interphone master units 3a, 3b,. The alarm sound is intermittently sounded by the alarm devices 4a, 4b,... After confirming the call from the manager in the room in the apartment room of the apartment and the alarm transfer described above at the time of security abnormality There is a response from the manager (not detailed), or a call from a visitor at the entrance of the apartment, and the resident in the room responds to the hands in the residence that confirmed these calls (acknowledgment response). Although the case of making a free call has been explained, there is no limitation to this state, and there is a call from a manager who is in the apartment room or a call from a visitor at the entrance of the apartment house. The alarm alarms 4a, 4b,... Detect a security abnormality occurring in the dwelling unit during a call in which a resident in the room responds to the dwelling unit that has confirmed the extension and performs a hands-free call. Even when a warning sound is generated, the same effects as those of the first to sixth operation examples described above can be obtained.

  Further, in the collective housing intercom system according to the embodiment of the present invention, according to the interphone master units 3a, 3b,... Of each of the first to sixth configuration examples, a call from the collective entrance unit 1 by a visitor, or An alarm indicating the content of a security abnormality detected by an alarm (including a voice message) indicating that there is a call from the management room base unit 2 by an administrator, or the alarm notification devices 4a, 4b,. Although the case where sounds (including voice messages) are stored in the memory 35 in advance has been described, the present invention is not limited to this mode, and the above-described ringing sounds (including voice messages) and alarm sounds (including voice messages) are generated. Such a speech synthesis circuit is also suitable for application, and provides the same effects as those of the first to sixth operation examples.

  Moreover, in the apartment house intercom system by the Example of this invention, according to each 1st operation example to which the intercom main | base station 3a, 3b, ... of a 1st structural example was applied, it input into the microphone 33 A transmission filter circuit which removes the alarm sound and outputs only the transmission voice signal which is the resident's transmission voice and is appropriately processed to the transmission side gain variable amplifier 37a of the transmission / reception level adjustment circuit 37. 39 is composed of a band elimination or notch filter, but is not limited to this mode, and a band pass filter such as a band pass filter that passes only the frequency band of the transmitted voice signal is also suitable. The same effects as those of the first operation example are obtained.

  Furthermore, according to the apartment house intercom system according to the embodiment of the present invention, the system is applied to the apartment house, but the interphone master units 3a, 3b,... And the alarm alarm devices 4a, 4b,. The interphone master units 3a, 3b,... Can be installed in a built-in unit, and when applied to an intercom system for a built-in unit, the interphone master units 3a, 3b,. The same effects as those of the first to sixth operation examples described above are obtained so that good call sound quality can be ensured when hands-free calls are made between the two.

The block diagram which shows the structure of the said system provided with the intercom main unit as a 1st structural example in the apartment house intercom system by the Example of this invention. The block diagram which shows the structure of the said system provided with the intercom main unit as a 2nd structural example in the apartment house intercom system by the Example of this invention. The block diagram which shows the structure of the said system provided with the intercom main unit as a 3rd structural example in the apartment house intercom system by the Example of this invention. The block diagram which shows the structure of the said system provided with the intercom main unit as a 4th structural example in the apartment house intercom system by the Example of this invention. The block diagram which shows the structure of the said system provided with the intercom main unit as a 5th structural example in the apartment house intercom system by the Example of this invention. In the apartment house intercom system by the Example of this invention, the block diagram which shows the structure of the said system provided with the intercom main unit as a 6th structural example.

DESCRIPTION OF SYMBOLS 1 ... Collective entrance machine 2 ... Control room master 3a, 3b, ... Intercom master 33 ... Microphone 34 ... Speaker 37 ... Transmission / reception level adjustment circuit 71, 81, 91 ... CPU
80. Reception level adjustment circuit 70. Reception bypass circuit 90. Reception line control circuit 4a, 4b,...

Claims (3)

A collective entrance machine (1) installed at the entrance of the apartment house, a management room master machine (2) installed in the management room of the apartment house, and the collective entrance machine installed in each dwelling unit of the apartment house Interphone master units (3a, 3b,...) For performing a hands-free call with the control room master unit, and detecting a security abnormality occurring in each of the dwelling units, a security abnormality signal is sent to the interphone master unit. And alarm control devices (4a, 4b,...) For sounding an alarm sound, and call control and call control between the collective entrance unit or the management room base unit and the intercom base unit. A controller (5) for performing,
The interphone base unit detects a security abnormality signal from the microphone (33) and speaker (34) for performing the hands-free call with the collective entrance unit or the management room base unit, and the alarm notification device. And a transmission level and a reception level of the hands-free call that are controlled by the CPU that detects the security abnormality signal and is performed between the collective entrance machine or the management room master unit. In monitoring, when the transmission level is lower than the reception level, the amplification factor of the transmission side variable gain amplifier (37a) for changing the amplification factor of the transmission is reduced and / or the amplification factor of the reception is set. When the transmission level is higher than the reception level, the transmission level of the reception side variable gain amplifier (37b) is increased. By increasing the amplification degree of the variable gain amplifier, and / or said a receiving-side variable gain amplifier handset level adjusting circuit for the amplification of smaller (37) is controlled by the CPU which detects said security abnormality signal, A collective housing intercom system comprising: a reception bypass circuit (70) for bypassing the reception side of the transmission / reception level adjustment circuit and outputting any reception voice during a call from the speaker. A collective entrance machine (1) installed at the entrance of the apartment house, a management room master machine (2) installed in the management room of the apartment house, and the collective entrance machine installed in each dwelling unit of the apartment house Interphone master units (3a, 3b,...) For performing a hands-free call with the control room master unit, and detecting a security abnormality occurring in each of the dwelling units, a security abnormality signal is sent to the interphone master unit. And alarm control devices (4a, 4b,...) For sounding an alarm sound, and call control and call control between the collective entrance unit or the management room base unit and the intercom base unit. A controller (5) for performing,
The interphone master unit includes a microphone (33) and a speaker (34) for performing the hands-free call with the collective entrance machine or the management room master unit, and the security abnormality signal from the alarm notification device. Transmission level and reception level of the hands-free call controlled between the CPU (81) for detection and the CPU that has detected the security abnormality signal and is performed between the collective entrance machine or the management room master unit When the transmission level is lower than the reception level, the amplification factor of the transmission side variable gain amplifier (37a) for changing the amplification factor of the transmission is reduced and / or the amplification of the reception is performed. When the amplification level of the reception side variable gain amplifier (37b) that varies the degree is increased, the transmission level is higher than the reception level. By increasing the amplification degree of the story side variable gain amplifier, and / or the the handset level adjusting circuit for reducing the amplification degree of the receiving-side variable gain amplifier (37), controlled by the CPU which detects said security abnormality signal A reception bypass circuit (70) for bypassing the reception side of the transmission / reception level adjustment circuit and outputting any reception voice during a call from the speaker, and the reception level when the reception bypass circuit operates. And a reception level adjustment circuit (80) for adjusting the sound level. A collective entrance machine (1) installed at the entrance of the apartment house, a management room master machine (2) installed in the management room of the apartment house, and the collective entrance machine installed in each dwelling unit of the apartment house Interphone master units (3a, 3b,...) For performing a hands-free call with the control room master unit, and detecting a security abnormality occurring in each of the dwelling units, a security abnormality signal is sent to the interphone master unit. And an alarm alarm (4a, 4b,...) For sounding an alarm sound and call control and call control between the collective entrance machine or the management room master and the intercom master. A controller (5) for performing,
The interphone master unit includes a microphone (33) and a speaker (34) for performing the hands-free call with the collective entrance machine or the management room master unit, and the security abnormality signal from the alarm notification device. Transmission level and reception level of the hands-free call controlled between the CPU (91) for detection and the CPU that has detected the security abnormality signal and is performed between the collective entrance machine or the management room master unit When the transmission level is lower than the reception level, the amplification factor of the transmission side variable gain amplifier (37a) for changing the amplification factor of the transmission is reduced and / or the amplification of the reception is performed. When the amplification level of the reception side variable gain amplifier (37b) that varies the degree is increased, the transmission level is higher than the reception level. By increasing the amplification degree of the story side variable gain amplifier, and / or the the handset level adjusting circuit for reducing the amplification degree of the receiving-side variable gain amplifier (37), controlled by the CPU which detects said security abnormality signal A reception bypass circuit (70) for bypassing the reception side of the transmission / reception level adjustment circuit and outputting any reception voice during a call from the speaker, and the transmission / reception when the reception bypass circuit operates. A collective housing intercom system, comprising: a reception line control circuit (90) for blocking a reception side of the level adjustment circuit.

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