JP4341489B2 - Housing information board - Google Patents

Description

  The present invention relates to a housing information board.

  In recent years, housing information panel systems have become widespread in apartment houses and other apartments. Such a housing information panel system is installed in each dwelling unit, a lobby intercom installed at the common entrance of an apartment house, an alarm monitoring panel (or integrated panel) installed in a management room, a disaster prevention monitoring room, etc. It is composed of a housing information board and a door phone unit installed outside the entrance (entrance) of each dwelling unit. The housing information panel is equipped with a call function for making calls with the lobby intercom, door phone slave unit or alarm monitoring panel, and safety devices such as fire detectors and gas leak alarms installed in the dwelling units and signal lines. Via an alarm signal from one of the safety devices to notify the occurrence of an abnormality, and at least the occurrence of an abnormality and an alarm sound or an alarm message corresponding to the type of the abnormality are generated and And a security function for notifying the type (see, for example, Patent Document 1). There is also provided a home information board having a voice call function for making a voice call (hands-free call) using a microphone and a speaker instead of a handset.

Here, in the housing information panel equipped with the loudspeaker call function, it is arbitrary depending on the return path on the acoustic side formed by the acoustic coupling of the microphone and the speaker or the return path on the line side formed with the other party's call terminal. If a closed loop in which the loop gain in the frequency component of the frequency exceeds 1 is formed in the communication system, howling may occur at the frequency. Therefore, in order to prevent such howling, the communication state (transmission) State, reception state) at all times, and a voice switch for inserting a loss into the signal path on the transmission side and reception side with an appropriate distribution based on the estimation result.
Japanese Patent Laid-Open No. 11-195183

  By the way, some safety devices connected to the housing information panel not only output a notification signal to the housing information panel when an abnormality occurs but also generate an alarm sound. The volume of the alarm sound produced by this type of safety device is generally much larger than that of human speech, etc. When the distance between the safety device and the housing information panel is relatively close, the volume near the microphone of the housing information panel is 90 dB. It may be about. For this reason, in the voice switch that estimates the call state by comparing the signal level of the transmitted signal and the received signal, the level of the alarm sound emitted by the safety device is very high. Even if a call signal (received signal) is transmitted from the terminal, there is a risk that the received signal will not be heard from the speaker (continuous fall to the transmitting side) due to the fact that the transmitted state is not switched from the transmitted state to the received state. . In the event of a fire or a gas leak, the call instruction from the alarm monitoring panel should be reliably transmitted to the dwelling unit, and the reception signal to the dwelling unit (house information panel) needs to be delivered more reliably.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a housing information panel capable of listening to a received signal through a speaker even in a situation where a safety device emits an alarm sound at a high volume. There is.

In order to achieve the above-mentioned object, the invention of claim 1 is installed in each dwelling unit of the apartment house, door phone cords installed outside the dwelling unit, lobby intercom installed in the common entrance of the apartment house, A call function for making a call with a call device such as an alarm monitoring panel installed in the control room;
When it is installed in a dwelling unit and is connected to one or more types of safety devices that automatically or manually output a notification signal notifying the occurrence of an abnormality when the safety of the resident is threatened, and receiving a notification signal from any safety device In a housing information panel having at least an abnormality occurrence and a security function for generating an alarm sound or an alarm message according to the type of the abnormality and notifying the occurrence and type of the abnormality to the alarm monitoring board, a microphone and a speaker, A transmission processing means for transmitting the transmission signal collected by the microphone to the door phone slave unit, the lobby intercom or the alarm monitoring panel and sending the reception signal transmitted from the door phone slave unit, the lobby intercom or the alarm monitoring panel to the speaker; Transmission path loss insertion that inserts loss into the transmission path from the microphone to the transmission processing means. Means, a reception path loss insertion means for inserting loss into the reception path from the transmission processing means to the speaker, and a speech state is estimated by observing the transmission signal and the reception signal, and the transmission path based on the estimation result Either one of the loss insertion means and the insertion loss amount control means for variably controlling the insertion loss amount by the reception path loss insertion means, and the main reception path where loss is inserted by the reception path loss insertion means and the sub reception path where loss is not inserted An alarm state in which a receiving path switching means for selectively switching to transmit a receiving signal, and a safety device that emits an alarm sound when one of a plurality of types of safety devices generates an alarm signal, outputs a notification signal When the detection means and the alarm state detection means detect the notification signal output of the safety device, the reception path switching means is controlled to switch the transmission path of the reception signal from the main reception path to the sub reception path. And control means, the first amplifying means for amplifying a transmission signal provided transmission path between the transmission line loss insertion means and a microphone,
A second amplifying means for amplifying the received signal provided in the receiving path between the receiving path loss inserting means and the speaker, and a transmitting voice provided in the transmitting path between the transmitting path loss inserting means and the transmission processing means; The third amplifying means for amplifying the signal, the fourth amplifying means for amplifying the reception signal provided in the reception path between the transmission processing means and the reception path loss insertion means, and the transmission path loss insertion means Transmission path switching means for selectively transmitting to one of the main transmission path to be inserted and the sub transmission path to which no loss is inserted and transmitting the transmission signal; Gain setting means for reducing the degree of amplification of at least one of the first to fourth amplifying means when a signal output is detected; and a call device in which a microphone and a speaker are easily acoustically coupled among the call devices; Microphone
Identifies which model of telephone equipment that is difficult to acoustically connect to the phone and speaker is the other party
A partner model specifying unit, and the switching control unit is configured to detect whether the other party's call device specified by the partner model specifying unit is acoustically connected when the alarm state detecting unit detects the notification signal output of the safety device.
If the model is difficult to match , the transmission path switching means and the reception path switching means are controlled to change the transmission path of the transmission signal and reception signal from the main transmission path and the main reception path respectively to the sub transmission path and the sub reception path. It is characterized by switching to a road.

In order to achieve the above object, the invention of claim 2 replaces the gain setting means of the invention of claim 1 with sub-transmission path loss insertion means for inserting losses into the sub-transmission path and the sub-reception path, respectively. A sub-passage path loss insertion means is provided.

In order to achieve the above object, the invention of claim 3 is installed in each dwelling unit of the apartment house, a doorphone child unit installed outside the dwelling unit, a lobby intercom installed in the common entrance of the apartment house, A call function for making a call with a call device such as an alarm monitoring panel installed in the control room;
When connected to one or more types of safety devices that output a notification signal that automatically or manually reports the occurrence of an abnormality when the safety of a resident is threatened by being installed in a dwelling unit, and receiving a notification signal from any safety device In a housing information panel having at least an abnormality occurrence and a security function for generating an alarm sound or an alarm message according to the type of the abnormality and notifying the occurrence and type of the abnormality to the alarm monitoring board, a microphone and a speaker, A transmission processing means for transmitting the transmission signal collected by the microphone to the door phone slave unit, the lobby intercom or the alarm monitoring panel and sending the reception signal transmitted from the door phone slave unit, the lobby intercom or the alarm monitoring panel to the speaker; Transmission path loss insertion that inserts loss into the transmission path from the microphone to the transmission processing means. Means, a reception path loss insertion means for inserting loss into the reception path from the transmission processing means to the speaker, and a speech state is estimated by observing the transmission signal and the reception signal, and the transmission path based on the estimation result Loss insertion means and insertion loss amount control means for variably controlling the insertion loss amount by the reception path loss insertion means, and transmission path loss insertion means for the main transmission path where the loss is inserted by the transmission path loss insertion means The second transmission path switching means for selectively switching the state in which the sub transmission path in which no loss is inserted is connected in parallel and the state in which the sub transmission path is not connected to the main transmission path in which loss is inserted by the reception path loss insertion means On the other hand, the second receiving path switching means for selectively switching the state in which the sub-receiving path, in which no loss is inserted by the receiving path loss inserting means, is connected in parallel and the state in which it is not connected, and one or a plurality of types of safety devices Different An alarm state detecting means for detecting that a safety device that emits an alarm sound when it is generated outputs a notification signal; a second transmission path switching means when the alarm state detecting means does not detect the notification signal output of the safety device; The second transmission path is controlled when the second transmission path switching means is controlled so that the sub transmission path and the sub reception path are not connected to each other, and the alarm state detection means detects the notification signal output of the safety device. Second switching control means for controlling the switching means and the second receiving path switching means to switch to a state in which the sub transmitting path and the sub receiving path are connected to each other; and a sub sending that inserts a loss in the sub transmitting path A path loss insertion means, a sub-passage path loss insertion means for inserting a loss into the sub-receiver path ,
The phone and speaker are easily connected acoustically, and the microphone and speaker are not easily connected acoustically.
A partner model specifying means for specifying which model of the call device is the call partner,
The switching control means 2 detects the alarm signal output of the safety device by the alarm state detecting means and
Sub-speech when the other party's call device specified by hand model identification means is a model that is difficult to acoustically couple
Second transmission path switching means and second reception path so as to transmit a call signal to the path and the secondary reception path
The switching means is controlled .

According to the first aspect of the present invention, when the alarm state detecting means detects that the safety device that emits an alarm sound by itself when the abnormality occurs, the alarm state detecting means detects the subway bypassing the receiving path loss inserting means. Since the reception signal is transmitted to the speaker in the reception path, the reception signal can be heard through the speaker even in a situation where the safety device emits an alarm sound at a high volume, and the first to fourth amplification means. By reducing the degree of amplification of at least one of the above, it is possible to suppress howling in the situation where the safety device emits an alarm sound at a high volume, and further, the safety device that emits an alarm sound itself when an abnormality occurs That has output a notification signal
The call device of the other party detected by the alarm state detection means and identified by the partner model identification means
When the model is difficult to match, the switching control means transmits a call signal to the secondary transmission path and secondary reception path.
Because it controls the transmission path switching means and the reception path switching means to make
(For example, models that make loud calls)
Only when a call is made with a difficult model (for example, a model using a handset), it passes through the sub-transmission path and the sub-transmission path.
By transmitting speech signals, it is possible to suppress howling with models that are difficult to acoustically couple.
One there is an effect that Ru can call loud enough.

According to the invention of claim 2, when the alarm state detecting means detects that the safety device that emits an alarm sound by itself when the abnormality occurs outputs the notification signal, the switching control means bypasses the transmission path loss inserting means. A situation where the safety device emits an alarm sound at a high volume because the transmission signal is transmitted on the secondary transmission path and the reception signal is transmitted to the speaker on the secondary reception path that bypasses the reception path loss insertion means. The reception signal can be heard through the speaker at the bottom, and the loss is inserted into the sub transmission path and the sub reception path by the sub transmission path loss insertion means and the sub reception path loss insertion means. A safety device that can suppress the occurrence of howling in a situation where an alarm sound is generated at a high volume and that also generates an alarm sound when an abnormality occurs is notified.
Is detected by the alarm state detection means and the partner specified by the partner model specifying means
When the telephone device is a model that is difficult to acoustically couple, the switching control means is connected to the auxiliary transmission path and the auxiliary reception path.
Since the transmission path switching means and the reception path switching means are controlled to transmit the call signal to the
A model that is less prone to howling compared to a model that is easily coupled (for example, a model that performs loudspeaking calls).
In other words, sub-transmission only when talking to a model that is difficult to acoustically couple (for example, a model that uses a handset)
By transmitting a call signal to the road and the secondary receiving path, it is difficult to connect with models that are difficult to acoustically couple.
While suppressing the occurrence of the ring there is an effect that Ru can call loud enough.

According to the invention of claim 3, when the alarm state detecting means detects that the safety device that emits an alarm sound by itself when the abnormality occurs outputs the notification signal, the second switching control means switches the second transmission path switching. And the second receiving path switching means to switch the main transmission path and the main receiving path to the state in which the sub transmission path and the sub receiving path are connected in parallel, respectively, and the sub transmission path and the sub receiving path. Since the loss is inserted by the sub transmission path loss insertion means and the sub reception path loss insertion means, respectively, the transmission signal and the reception signal are sent to the main transmission path, the sub transmission path, and the main reception path and the sub reception path. By branching and transmitting to each other, it is possible to listen to the received signal through the speaker even in the situation where the safety device emits an alarm sound with a large volume, and the auxiliary transmission path loss insertion means and the auxiliary reception path loss insertion Secondary transmission path by means Loss is inserted in each of the secondary listening paths, so that it is possible to suppress howling in a situation where the safety device emits an alarm sound at a high volume. Further, the main transmission path, the secondary transmission path, and the main transmission path can be suppressed. The call volume can be increased compared to the case of alternatively switching the reception path and the sub-reception path , and a safety device that emits an alarm sound when an abnormality occurs is a notification signal.
Is detected by the alarm state detection means, and the other party specified by the partner model specifying means
When the telephone device is a model that is difficult to acoustically couple, the second switching control means includes the auxiliary transmission path and the auxiliary reception unit.
A second transmission path switching means and a second reception path switching means for transmitting a speech signal on the speech path;
Because it controls, howlin compared to models that are easy to acoustically couple (for example, models that make loud calls)
Communicating with models that are difficult to connect, that is, models that are difficult to acoustically couple (for example, models that use a handset)
A model that is difficult to acoustically couple by transmitting a call signal to the sub-transmission path and sub-reception path only during speech.
There is an effect that Ru can call loud enough while suppressing the occurrence of howling in between.

Before describing an embodiment of the present invention, a reference example having a basic configuration in common with the embodiment of the present invention
1 to 4 will be described.
(Reference Example 1)
FIG. 2 shows a system configuration example of a home information board system using the home information board A of this reference example.
This system includes a lobby intercom 60 installed at a common entrance of a housing complex, an alarm monitoring panel 80 installed in a management room of the housing complex, a housing information panel A installed in each dwelling unit, A door phone 50 installed outside (front door). Then, the alarm monitoring panel 80 and the housing information panel A of each dwelling unit use a communication line L1 for multiplex transmission of audio signals such as call voices and alarm sounds and video signals picked up by the television camera included in the lobby intercom 60, calls and alarms. Are connected by a control line L2 for multiplex transmission of control signals such as. In this system, the configuration in which the video signal and the audio signal are multiplexed and transmitted is exemplified, but the video signal may be transmitted through an independent video transmission line.

  The lobby intercom 60 includes a signal processing unit (not shown) including a CPU as a main component, an operation unit 61 including a numeric keypad and a call button, a display unit 62 including a display lamp and a liquid crystal display, and a control line. A transmission / reception unit (not shown) that transmits and receives control signals to and from the alarm monitoring panel 80 via L2, a microphone 63 and a speaker 64, and a housing information panel A and an alarm monitoring panel using the microphone 63 and the speaker 64 A speech control unit (not shown) for performing a loudspeaking call with 80, a television camera (not shown) having an image sensor such as a CCD, and an output of the television camera are signal-processed to generate a video signal. A video signal processing unit (not shown) to be output, an audio signal output from the call control unit, and a video signal output from the video signal processing unit are multiplexed and transmitted to the communication line L1. And it includes input and output processing unit for outputting a sound signal transmitted through the communication line L1 to the call control unit (not shown).

  On the other hand, the alarm monitoring panel 80 includes a signal processing unit (not shown) having a CPU as a main component, an operation unit 81 having a numeric keypad and a call button, and a display unit 82 having a display lamp and a liquid crystal display. A transmission / reception unit (not shown) for transmitting / receiving a control signal to / from each home information panel A and lobby intercom 60 via the control line L2, a handset 83, and a home using the handset 83 A call control unit (not shown) for performing simultaneous calls with the information board A and the lobby intercom 60 is provided.

  The door phone sub unit 50 includes a microphone and a speaker and is connected to the house information board A through the call line L3. When the call button 57a is operated, the door phone sub unit 50 changes the voltage level of the call line L3 to the house information board A. In contrast, it has a function of sending a call signal.

  In the housing information board A, a monitor unit 40 made of a CRT or a liquid crystal display is provided at the upper front of the housing, and a response button 41 is provided at the lower front of the housing. When an image sent from the lobby intercom 60 via the communication line L1 is displayed on the monitor unit 40, when the response button 41 is operated in response to a call from the door phone slave unit 50, the lobby intercom 60, or the alarm monitoring panel 80. The call function of the house information panel A is activated, and a loudspeaking call is performed with the door phone slave unit 50, the lobby intercom 60, or the alarm monitoring panel 80. The home information panel A is connected to various safety devices such as a fire detector S1, a gas / CO detector S2, a security external set switch SW, a security switch SW1, a call switch SW2, an emergency switch SW3, etc. When a notification signal is received from the device, an alarm sound or a warning message is generated according to the occurrence of an abnormality and the type of abnormality that has occurred (fire, gas leakage, carbon monoxide concentration increase, emergency call, etc.) and the alarm monitoring panel 80 Is notified of the occurrence and type of abnormality via the control line L2.

  On the other hand, when the alarm monitoring panel 80 receives a notification signal from any one of the housing information panels A through the control line L2, the alarm monitoring panel 80 identifies the address added to the notification signal and outputs the notification signal A. The management unit or the like is informed of an abnormality by identifying and displaying the dwelling unit number where the house information panel A is installed on the display unit 83 and simultaneously outputting an alarm sound. Then, if an administrator who knows that the abnormality has occurred off-hooks the handset of the alarm monitoring panel 80, a communication path via the communication line L1 is forcibly formed between the house information panel A that has output the notification signal, It is possible to confirm the abnormal situation and safety by calling with the resident of the dwelling unit where the abnormality has occurred.

FIG. 1 is a block diagram showing a main part configuration of a housing information board A of this reference example . As shown in FIG. 1, the housing information board A of this reference example transmits the microphone 1 and the speaker 2 and the transmission signal collected by the microphone 1 to the door phone slave 50, the lobby intercom 60, or the alarm monitoring board 80. At the same time, a loss is inserted into the transmission processing unit 3 for sending the reception signal transmitted from the door phone sub unit 50, the lobby intercom 60 or the alarm monitoring panel 80 to the speaker 2, and the transmission path TL from the microphone 1 to the transmission processing unit 3. The speech path loss insertion unit 4, the reception path loss insertion unit 5 that inserts loss into the reception path RL from the transmission processing unit 3 to the speaker 2, and the speech signal and the reception signal are estimated to estimate the speech state. An insertion loss amount control unit 6 that variably controls the insertion loss amount by the transmission path loss insertion unit 4 and the reception path loss insertion unit 5 based on the estimation result; 1 is provided in the transmission path TL between the transmission path loss insertion unit 3 and the first amplifier 7 for amplifying the transmission signal, and provided in the reception path RL between the reception path loss insertion unit 4 and the speaker 2. A second amplifier 8 that amplifies the received signal, and a third amplifier 9 that is provided in the transmission path TL between the transmission path loss insertion unit 4 and the transmission processing unit 3 to amplify the transmitted signal; A fourth amplifier 10 which is provided in a reception path RL between the transmission processing unit 3 and the reception path loss insertion unit 5 and amplifies a reception signal; and a main reception path RL1 into which loss is inserted by the reception path loss insertion unit 5; A receiving path change-over switch 11 that selectively switches to either one of the sub-receiving paths RL2 into which no loss is inserted and transmits a received signal, and a safety that emits an alarm sound when an abnormality occurs in one or more types of safety devices Equipment (eg fire detector S1 and gas / CO detector S2) reports An alarm state detecting means 12 for detecting the output of a signal, and a receiving path changeover switch when the alarm state detecting means 12 detects an output of a notification signal of the safety device (fire detector S1 or gas / CO detector S2). And a switch control means 13 for switching the transmission path of the reception signal from the main reception path RL1 to the sub reception path RL2. Here, the transmission path loss insertion unit 4, the reception path loss insertion unit 5, the insertion loss amount control unit 6, and the reception path switch 11 constitute a voice switch VSW. In the voice switch VSW of this reference example, the transmission path loss insertion section 4, the reception path loss insertion section 5, and the insertion loss amount control section 6 are configured by an analog integrated circuit. It can also be realized by controlling with software (program).

  The insertion loss amount control unit 6 compares the signal level of the transmission signal amplified by the first amplifier 7 and the reception signal amplified by the fourth amplifier 10, and the signal level of the transmission signal is, for example, that of the reception signal. If it is greater than the signal level, the transmission state is estimated and the insertion loss ILT (solid line a in FIG. 3) in the transmission path loss insertion unit 4 is reduced, and at the same time, the insertion loss ILR in the reception path loss insertion unit 5 (FIG. 3). On the contrary, if the signal level of the received signal is higher than the signal level of the transmitted signal, it is estimated that the received signal is received, and the insertion loss amount ILR in the receiving path loss inserting unit 5 is reduced and simultaneously the transmission path loss. The call state is switched by increasing the insertion loss amount ILT in the insertion unit 4. The sum of the insertion loss amount ILT in the transmission path loss insertion unit 4 and the insertion loss amount ILR in the reception path loss insertion unit 5 (total loss amount Lt = ILR + ILR) is constant.

  Here, the house information panel A detects a call signal from the door phone slave unit 50, the lobby intercom 60 or the alarm monitoring panel 80 and outputs a calling sound from the speaker 2, or an alarm monitoring panel via the control line L2. A communication function for transmitting / receiving control signals to / from 80, a security function for monitoring a notification signal output by the safety device and outputting an alarm sound or reporting to the alarm monitoring panel 80 when the notification signal is received. These functions are realized by a control unit (not shown) having a CPU as a main component, and the alarm state detection means 12 and the switch control means 13 are also realized by the control unit. .

  Thus, when a safety device (for example, fire detector S1 and gas / CO detector S2) that emits an alarm sound when an abnormality occurs is connected to the housing information panel A, as described in the related art. In a situation where the safety device emits an alarm sound at a high volume, the alarm sound is collected by the microphone 1 of the house information panel A, so that the signal level of the transmission signal becomes very high, and the voice switch VSW. Therefore, there is a possibility that the received signal transmitted from the alarm monitoring panel 80 is attenuated by the insertion loss of the receiving path loss inserting unit 5 and cannot be heard from the speaker 2. is there.

However, in this reference example , when the alarm state detection means 12 detects that such a safety device has output a notification signal, a detection signal is output from the alarm state detection means 12 to the switch control means 13, and this detection signal is received. Since the switch control means 13 controls the reception path changeover switch 11 to switch the transmission path of the reception signal from the main reception path RL1 to the sub reception path RL2, the reception is performed on the sub reception path RL2 bypassing the reception path loss insertion unit 5. Since the signal is transmitted to the speaker 2 and the amount of loss inserted into the reception path RL becomes zero [dB] as shown by the solid line C in FIG. 3, the safety device emits an alarm sound at a large volume. Also, the received signal can be heard through the speaker 2.

( Reference Example 2 )
FIG. 4 is a block diagram showing a main configuration of the housing information board A of this reference example . However, the same components as those in Reference Example 1 are denoted by the same reference numerals and description thereof is omitted.

In this reference example , the transmission signal is transmitted by selectively switching between the main transmission path TL1 in which loss is inserted by the transmission path loss insertion unit 4 and the sub transmission path TL2 in which loss is not inserted. When the transmission path changeover switch 14 and the alarm state detection means 12 detect the notification signal output of the safety device, the gain (gain) of at least one of the first to fourth amplifiers 7 to 10 is set. And a gain setting means 15 for decreasing, and the switch control means 13 is connected to the alarm state detecting means 12.
Detects the notification signal output of the safety device, it controls the transmission path switching switch 14 and the reception path switching switch 11 to change the transmission path of the transmission signal and reception signal to the main transmission path TL1 and the main reception path RL1. Is characterized in that each is switched to the sub transmission path TL2 and the sub reception path RL2.

Thus, in this reference example , the alarm state detecting means 1 indicates that such a safety device has output a notification signal.
2 is detected, a detection signal is output from the alarm state detection means 12 to the switch control means 14 and the gain control means 15, and the switch control means 13 that has received this detection signal switches the transmission path switching switch 14 and the reception path switching. The transmission path of the transmission signal and reception signal is controlled by controlling the switch 11 so that the main transmission path TL1 and the main reception path RL1 to the sub transmission path TL2 and the sub reception path RL, respectively.
The transmission signal and the reception signal are transmitted through the sub transmission path TL2 and the sub reception path RL2, respectively, and the total loss amount of the voice switch VSW is substantially zero [d as shown by the solid line D in FIG.
B], the received signal can be heard through the speaker 2 even in a situation where the safety device emits an alarm sound at a high volume. The gain control means 1 that has received the detection signal
5 reduces the degree of amplification of at least one of the first to fourth amplifiers 7 to 10, so that it is possible to suppress howling in a situation where the safety device emits an alarm sound with a large volume. There is. Note that any one of the amplification degrees of the first to fourth amplifiers 7 to 10 may be decreased, or a plurality of amplifiers may be decreased in correlation with each other.

( Reference Example 3 )
FIG. 6 is a block diagram showing a main configuration of the housing information board A of this reference example . However, the same components as those in Reference Example 2 are denoted by the same reference numerals and description thereof is omitted.

In this reference example, in place of the gain setting means 15, a transmission side attenuator (attenuator) 16 for attenuating a transmission signal by inserting a loss in the sub transmission path TL2, and a loss in the sub reception path RL2 are inserted. The voice switch VSW is characterized in that it includes a receiving side attenuator (attenuator) 17 for attenuating the received signal. The amplification factors of the first to fourth amplifiers 7 to 10 are all fixed.

Thus, in this reference example , when a detection signal is output from the alarm state detection means 12, the switch control means 13 controls the transmission path change switch 14 and the reception path change switch 11 to transmit the transmission signal and the reception signal. The transmission path is changed from the main transmission path TL1 and the main reception path RL1 to the sub transmission path TL2, respectively.
7 and the sub-receiving path RL2, the loss (L1, L2 [dB]) is inserted into the sub-sending path TL2 and the sub-receiving path RL2 by the transmitting side attenuator 16 and the receiving side attenuator 17, respectively. Since the total loss amount of the voice switch VSW is the sum of the insertion loss amounts of the transmission side attenuator 16 and the reception side attenuator 17 as indicated by the solid line E and the solid line F, the safety device emits an alarm sound at a large volume. Even under such circumstances, the received signal can be heard through the speaker 2 and howling can be suppressed, and there is an advantage that the configuration can be simplified compared to the reference example 2 .

( Reference Example 4 )
FIG. 8 is a block diagram showing a main configuration of the housing information board A of this reference example . However, the same components as those in Reference Example 3 are denoted by the same reference numerals and description thereof is omitted.

In this reference example , instead of the transmission path change switch 14 and the reception path change switch 11 in the reference example 3 , the state in which the sub transmission path TL2 is connected in parallel to the main transmission path TL1 and the state in which the sub transmission path TL2 is not connected are selected. A second transmission path changeover switch 18 that switches between one and a second reception path changeover switch 19 that selectively switches between a state in which the sub reception path RL2 is connected in parallel to the main reception path RL1 and a state in which the sub reception path RL2 is not connected in parallel. And the voice switch VSW is characterized in that However, both of the second transmission path changeover switch 18 and the second reception path changeover switch 19 are on / off controlled by the switch control means 13.

Thus, when the detection signal is not output from the alarm state detection means 12, the switch control means 13 controls the second transmission path changeover switch 18 and the second reception path changeover switch 19 to control the auxiliary transmission path. By separating the TL2 and the secondary reception path RL2 from the main transmission path TL1 and the secondary reception path RL1, and transmitting the transmission signal and the reception signal on the main transmission path TL1 and the main reception path RL1, respectively, As shown, the total loss amount is appropriately distributed to the transmission path loss insertion section 4 and the reception path loss insertion section 5 by the insertion loss amount control section 6, and the gains of the main transmission path TL1 and the main reception path RL1 are relative to each other. When the number is increased or decreased, the call state is switched smoothly and howling is suppressed. On the other hand, when a detection signal is output from the alarm state detection means 12, the switch control means 13 controls the second transmission path changeover switch 18 and the second reception path changeover switch 19 to control the sub transmission path TL2 and The sub listening path RL2 is connected in parallel to the main transmission path TL1 and the main receiving path RL1, respectively, and the transmission signal and the reception signal are transmitted to the main transmission path TL1, the sub transmission path TL2, and the main reception path RL1 and the sub reception path RL2. And transmit. That is, the sum of the gains of the sub transmission path TL2 and the sub reception path RL2 is the sum of the attenuation amounts of the transmission side attenuator 16 and the reception side attenuator 17, and the total gain of the main transmission path TL1 and the main reception path RL2. Is the total loss amount distributed by the insertion loss amount control unit 6, and the total loss amount of the voice switch VSW including these is distributed to the transmitting side and the receiving side as shown by the solid line H in FIG. Will be. Accordingly, even when the safety device emits an alarm sound at a high volume, the insertion loss amount control unit 6 distributes and inserts an appropriate loss into the transmission path TL and the reception path RL. There is an advantage that a signal can be heard and howling can be suppressed, and the call volume can be increased as compared with the third embodiment .

(Embodiment 1 )
By the way, among the communication devices such as the door phone slave unit 50, the lobby intercom 60, or the alarm monitoring panel 80 that are the other party, the door phone slave unit 50 and the lobby intercom 60 do not use a handset like the house information panel A. Alarm monitoring panel 8
In many cases, 0 is a non-speech call using a handset 83. Therefore, when a telephone call is made between the doorphone slave unit 50 and the lobby interphone 60, acoustic coupling is likely to occur between the microphone and the speaker in the doorphone slave unit 50 or the lobby interphone 60. Therefore, the voice switch VSW is used to prevent howling. It is necessary to increase the total loss amount to some extent. However, in the reference examples 1 to 4 , since the total loss amount of the voice switch VSW is substantially reduced when the detection signal is output from the alarm state detection means 12, the doorphone slave unit 50 and the lobby interphone 60 Thus, in a call with a call device that is easy to be acoustically coupled, a howling is likely to occur compared to a call with a call device that is difficult to be acoustically coupled, such as the alarm monitoring panel 80.

Therefore, in the present embodiment, as shown in FIG. 10, among the call devices, the type of the call device in which the microphone and the speaker are easily acoustically coupled and the call device in which the microphone and the speaker are not easily acoustically coupled are identified. A detection signal is output to the switch control means 13 from the alarm state detection means 12 that has detected that the safety device has output a notification signal, and is specified by the counterpart model specification means 20. When the partner model is difficult to acoustically couple, the switch control means 13 controls the reception path switch 11 to switch the transmission path of the reception signal from the main reception path RL1 to the sub reception path RL2. In addition, since the other structure is common with the reference example 1 , the same code | symbol is attached | subjected to a common component and description is abbreviate | omitted.

  As described above, the door phone slave unit 50 changes the voltage level of the communication line L3 to send a calling signal to the house information panel A, and the lobby intercom 60 and the alarm monitoring panel 80 transmit via the control line L2. A call signal is sent to the housing information board A as a control signal. Therefore, when a call is started on the housing information board A, it is considered that the call is made with the call device that sent the call signal immediately before that, so that when the call type signal is detected in the partner model specifying means 20, the call of the sender is detected. By identifying the device, the model of the other party's call device is specified. For example, when a call signal sent via the call line L3 is detected, the call device of the other party is the door phone cord 50, so that it can be identified as a model that can be easily coupled, and the call signal sent via the control line L2 Based on the address of the included transmission source, it is determined whether the other party's call device is the lobby intercom 60 or the alarm monitoring panel 80. The type of the other party's telephone equipment can be specified, such as a model that is difficult to acoustically couple.

  Thus, when the safety device (for example, the fire detector S1 and the gas / CO detector S2) that emits an alarm sound when an abnormality occurs, the alarm control unit 12 detects that the alarm signal has been output to the switch control unit 13. On the other hand, the switch control means 13 controls the reception path changeover switch 11 to transmit the reception signal only when the detection signal is output and the partner model specified by the partner model specification means 20 is a model that is difficult to be acoustically coupled. Since the route is switched from the main reception path RL1 to the sub reception path RL2, even in a situation where the safety device emits an alarm sound at a loud volume with a model that is difficult to be acoustically coupled (for example, the alarm monitoring panel 80), There is an advantage that a call can be made with a sufficient volume while suppressing occurrence.

(Embodiment 2 )
FIG. 11 is a block diagram showing a main configuration of the housing information board A of the present embodiment. In this embodiment, the counterpart model specifying means 20 in the first embodiment is added to the configuration of the reference example 2 ,
Since the basic configuration is the same as that of the reference example 2 and the first embodiment , the same components are denoted by the same reference numerals and description thereof is omitted.

Thus, in the present embodiment, a switch from the alarm state detection means 12 that detects that a safety device (for example, the fire detector S1 and the gas / CO detector S2) that emits an alarm sound when an abnormality occurs outputs a notification signal. A detection signal is output to the control means 13 and the counterpart model specifying means 2
Switch control means 13 only when the partner model identified by 0 is a model that is difficult to acoustically couple.
Controls the transmission path changeover switch 14 and the reception path changeover switch 11 to change the transmission path of the transmission signal and reception signal from the main transmission path TL1 and the main reception path RL1 to the sub transmission path TL2 and the sub reception path RL2, respectively. Since the switching is performed, there is an advantage that a conversation can be made with a sufficient volume while suppressing the occurrence of howling even under a situation where the safety device emits an alarm sound with a large volume between models that are difficult to be acoustically coupled as in the first embodiment. .

(Embodiment 3 )
FIG. 12 is a block diagram showing a main part configuration of the housing information board A of the present embodiment. In the present embodiment, the counterpart model specifying means 20 in the first embodiment is added to the configuration of the reference example 3 ,
Since the basic configuration is the same as that of the reference example 3 and the first embodiment , the same components are denoted by the same reference numerals and description thereof is omitted.

Thus, in the present embodiment, a switch from the alarm state detection means 12 that detects that a safety device (for example, the fire detector S1 and the gas / CO detector S2) that emits an alarm sound when an abnormality occurs outputs a notification signal. A detection signal is output to the control means 13 and the counterpart model specifying means 2
Switch control means 13 only when the partner model identified by 0 is a model that is difficult to acoustically couple.
Controls the transmission path changeover switch 14 and the reception path changeover switch 11 to change the transmission path of the transmission signal and reception signal from the main transmission path TL1 and the main reception path RL1 to the sub transmission path TL2 and the sub reception path RL2, respectively. Since the switching is performed, there is an advantage that a conversation can be made with a sufficient volume while suppressing the occurrence of howling even under a situation where the safety device emits an alarm sound with a large volume between models that are difficult to be acoustically coupled as in the first embodiment. .

(Embodiment 4 )
FIG. 13 is a block diagram showing a main configuration of the housing information board A of the present embodiment. In the present embodiment, the counterpart model specifying means 20 in the first embodiment is added to the configuration of the reference example 4 ,
Since the basic configuration is the same as in Reference Example 4 and Embodiment 1 , common constituent elements are denoted by the same reference numerals and description thereof is omitted.

Thus, in the present embodiment, a switch from the alarm state detection means 12 that detects that a safety device (for example, the fire detector S1 and the gas / CO detector S2) that emits an alarm sound when an abnormality occurs outputs a notification signal. A detection signal is output to the control means 13 and the counterpart model specifying means 2
Switch control means 13 only when the partner model identified by 0 is a model that is difficult to acoustically couple.
Controls the second transmission path changeover switch 18 and the second reception path changeover switch 19 to connect the sub transmission path TL2 and the sub reception path RL2 in parallel to the main transmission path TL1 and the main reception path RL1, respectively. The transmission signal and the reception signal are transmitted to the main transmission path TL1 and the auxiliary transmission path TL2, and the main reception path RL1 and the auxiliary reception path RL.
Since the transmission is performed in the same manner as in the first embodiment, it is possible to make a call at a sufficient volume while suppressing the occurrence of howling even in a situation where the safety device emits an alarm sound at a high volume with a model that is difficult to be acoustically coupled as in the first embodiment. There is an advantage. Furthermore, there is an advantage that the call volume can be increased as compared with the third embodiment.

It is a block diagram which shows the principal part structure of the reference example 1 of this invention. It is a system configuration | structure figure of the housing information panel system containing the same as the above. It is operation | movement explanatory drawing same as the above. 10 is a block diagram showing a main configuration of Reference Example 2. FIG. It is operation | movement explanatory drawing same as the above. 10 is a block diagram showing a main configuration of Reference Example 3. FIG. It is operation | movement explanatory drawing same as the above. 10 is a block diagram showing a main configuration of Reference Example 4. FIG. It is operation | movement explanatory drawing same as the above. FIG. 2 is a block diagram illustrating a main configuration of the first embodiment. FIG. 6 is a block diagram illustrating a main configuration of the second embodiment. FIG. 10 is a block diagram illustrating a main configuration of a third embodiment. FIG. 6 is a block diagram illustrating a main configuration of a fourth embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Microphone 2 Speaker 3 Transmission processing part 4 Transmission path loss insertion part 5 Received path loss insertion part 6 Insertion loss amount control part 11 Received path switch 12 Alarm state detection means 13 Switch control means

Claims (3)

Intercom devices such as doorphones installed inside and out of the apartment, lobby intercom installed at the common entrance of the apartment, alarm monitoring panel installed in the management room of the apartment, etc. Connected to one or more types of safety devices that can communicate with each other and output a notification signal that automatically or manually notifies the occurrence of an abnormality when the safety of a resident is threatened by being installed in a dwelling unit. When a notification signal is received from a safety device, a housing having at least an abnormality and a security function for generating an alarm sound or an alarm message according to the type of the abnormality and notifying the alarm monitoring panel of the occurrence and type of the abnormality In the information panel, the microphone and speaker, and the transmission signal collected by the microphone are transmitted to the door phone slave unit, lobby intercom, or alarm monitoring panel. And a transmission processing means for sending the received signal transmitted from the door phone slave unit, lobby intercom or alarm monitoring panel to the speaker, and a transmission path loss inserting means for inserting a loss into the transmission path from the microphone to the transmission processing means, Receiving path loss insertion means for inserting loss into the receiving path from the transmission processing means to the speaker, and estimating the speech state by observing the transmission signal and the reception signal, and inserting the transmission path loss based on the estimation result The insertion loss amount control means for variably controlling the insertion loss amount by the reception path loss insertion means, and the main reception path where loss is inserted by the reception path loss insertion means and the sub reception path where loss is not inserted are selected. A receiving path switching means for switching the transmission signal and transmitting a received signal, and a safety device that emits an alarm sound when an abnormality occurs among one or more types of safety devices An alarm state detecting means for detecting the output of the notification signal; and when the alarm state detecting means detects the notification signal output of the safety device, the reception path switching means is controlled to change the transmission path of the reception signal from the main reception path. A switching control means for switching to the sub-receiving path, a first amplifying means for amplifying the transmission signal provided in the transmission path between the microphone and the transmission path loss insertion means, a reception path loss insertion means and a speaker. A second amplification means for amplifying the reception signal provided between the second amplification means for amplifying the reception signal, and a third amplification for amplifying the transmission signal provided for the transmission path between the transmission path loss insertion means and the transmission processing means. Means, a fourth amplifying means provided in the reception path between the transmission processing means and the reception path loss insertion means for amplifying the reception signal, and a main transmission path into which loss is inserted by the transmission path loss insertion means, Choose either sub-transmission path without loss At least one of the transmission path switching means for switching the transmission signal and transmitting the transmission signal and the first to fourth amplification means when the alarm state detection means detects the notification signal output of the safety device. A gain setting means for reducing the amplification degree, and a microphone and
What kind of telephone equipment that can easily be acoustically coupled?
A partner model specifying means for specifying whether the model is a call partner, and the switching control means, when the alarm state detecting means detects the notification signal output of the safety device , and the partner model specifying means
If the other party's telephone equipment specified in the stage is a model that is difficult to acoustically couple , the transmission path switching means and the reception path switching means are controlled so that the transmission path of the transmission signal and the reception signal is changed to the main transmission path and the main transmission path. A housing information board characterized by switching from a reception path to a sub transmission path and a sub reception path. 2. A house comprising a sub transmission path loss insertion means and a sub reception path loss insertion means for inserting losses into the sub transmission path and the sub reception path, respectively, instead of the gain setting means in the invention of claim 1. Information board. Intercom devices such as doorphones installed inside and out of the apartment, lobby intercom installed at the common entrance of the apartment, alarm monitoring panel installed in the management room of the apartment, etc. Connected to one or more types of safety devices that can communicate with each other and output a notification signal that automatically or manually notifies the occurrence of an abnormality when the safety of a resident is threatened by being installed in a dwelling unit. When a notification signal is received from a safety device, a housing having at least an abnormality and a security function for generating an alarm sound or an alarm message according to the type of the abnormality and notifying the alarm monitoring panel of the occurrence and type of the abnormality In the information panel, the microphone and speaker, and the transmission signal collected by the microphone are transmitted to the door phone slave unit, lobby intercom, or alarm monitoring panel. And a transmission processing means for sending the received signal transmitted from the door phone slave unit, lobby intercom or alarm monitoring panel to the speaker, and a transmission path loss inserting means for inserting a loss into the transmission path from the microphone to the transmission processing means, Receiving path loss insertion means for inserting loss into the receiving path from the transmission processing means to the speaker, and estimating the speech state by observing the transmission signal and the reception signal, and inserting the transmission path loss based on the estimation result Loss control means for variably controlling the insertion loss amount by the reception path loss insertion means and the main transmission path in which the loss is inserted by the transmission path loss insertion means, the loss by the transmission path loss insertion means. Loss by the second transmission path switching means and the reception path loss insertion means for selectively switching between the state in which the sub transmission path in which no voice is inserted is connected in parallel and the state in which the sub transmission path is not connected in parallel. Second receiving path switching means for selectively switching a state in which a sub-receiving path in which no loss is inserted by the receiving path loss inserting means is connected in parallel to a state in which no connection is connected to the main receiving path to be inserted; An alarm state detection unit that detects that a safety device that emits an alarm sound when an abnormality occurs among a plurality of types of safety devices outputs a notification signal, and when the alarm state detection unit does not detect the notification signal output of the safety device The second transmission path switching means and the second reception path switching means are controlled so that the sub transmission path and the sub reception path are not connected to each other, and the alarm state detection means outputs the notification signal output of the safety device. Second switching control means for controlling the second transmission path switching means and the second reception path switching means to switch to the state in which the sub transmission path and the sub reception path are connected to each other when detected, and the sub transmission On the road Sub-transmission path loss insertion means for inserting loss, sub-reception path loss insertion means for inserting loss into the sub-receiving path, and a communication device and microphone in which a microphone and a speaker are likely to be acoustically coupled.
Identifies which model of the phone that is difficult to acoustically connect the microphone and speaker is the other party
The second switching control means is configured such that the alarm state detection means is the safety switch.
The other party's call device that detects the notification signal output of all devices and is identified by the partner model identification means
If it is a model that is difficult to resonate with the sound, the call signal should be transmitted to the secondary transmission path and secondary reception path.
Housing information board characterized by controlling two transmission path switching means and second reception path switching means
.

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