JP4277740B2 - 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 an alarm monitoring panel installed in a control room and the like, and a notification signal for automatically or manually informing the occurrence of an abnormality when the safety of a resident is threatened by being installed in a dwelling unit 1 When connected to multiple types of safety devices and receiving a notification signal from any of the safety devices, at least an abnormality occurs and an alarm sound or an alarm message corresponding to the type of the abnormality is generated and an abnormality occurs in the alarm monitoring panel And a housing information board with a security function for notifying the type, microphones and speakers, and transmission signals collected by the microphones in the doorphone sub-unit and lobby Loss is inserted into the transmission path from the microphone to the transmission processing means, and the transmission processing means for sending the reception signal transmitted from the door phone slave unit, lobby intercom or alarm monitoring board to the speaker. The transmission path loss insertion means, the reception path loss insertion means for inserting loss into the reception path from the transmission processing means to the speaker, the speech state is estimated by observing the transmission signal and the reception signal, and the estimation result Based on the transmission path 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 transmission signal provided in the transmission path between the microphone and the transmission path loss insertion means. First amplification means for amplifying the reception path, second amplification means for amplifying the reception signal provided in the reception path between the reception path loss insertion means and the speaker, A third amplifying means for amplifying the transmission signal provided in the transmission path between the path loss insertion means and the transmission processing means; and a reception voice provided in the reception path between the transmission processing means and the reception path loss insertion means. A fourth amplifying means for amplifying the signal; an alarm state detecting means for detecting that a safety device that emits an alarm sound when an abnormality occurs among one or more types of safety devices; And a first amplification degree setting means for reducing the amplification degree of the first amplification means when the means detects the notification signal output of the safety device.

  According to 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 has output the notification signal, the transmission signal collected by the microphone by the first amplification degree setting means In order to reduce the amplification factor of the first amplification means for amplifying the signal, the insertion loss amount control means can easily estimate the call state as the reception state, and as a result, the safety device emits an alarm sound at a high volume. You can listen to the received signal through the speaker.

  In order to achieve the above object, the second aspect of the present invention provides a fourth method in which, instead of the first amplification degree setting means in the first aspect, the alarm state detecting means detects the notification signal output of the safety device. A second amplification degree setting means for increasing the amplification degree of the amplification means is provided.

  According to 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 outputs the notification signal, it has been transmitted to the transmission processing means by the second amplification degree setting means. In order to increase the amplification factor of the fourth amplification means for amplifying the reception signal, the insertion loss amount control means can easily estimate the call state as the reception state, and as a result, the safety device emits an alarm sound with a large volume. Even under circumstances, the received signal can be heard through the speaker.

  The invention according to claim 3 is the invention according to claim 1, wherein the first amplification degree setting means decreases the amplification degree of the first amplification means and simultaneously increases the amplification degree of the second amplification means. And

  According to this invention, in addition to the effect of the invention of claim 1, the volume of the reception signal output from the speaker is increased by increasing the amplification factor of the second amplification means for amplifying the reception signal input to the speaker. Thus, the received signal can be heard easily and reliably.

  According to a fourth aspect of the present invention, in the first aspect of the invention, the first amplification degree setting means decreases the amplification degree of the first amplification means and simultaneously increases the amplification degree of the fourth amplification means. And

  According to the present invention, in addition to the effect of the first aspect of the invention, the insertion loss amount control means can communicate by reducing the amplification degree of the first amplification means and at the same time increasing the amplification degree of the fourth amplification means. It becomes easier to estimate the state as the reception state, and the reception signal can be reliably heard through the speaker.

  According to a fifth aspect of the present invention, in the first aspect of the invention, the first amplification degree setting means decreases the amplification degree of the first amplification means and simultaneously increases the amplification degree of the third amplification means. And

  According to the present invention, in addition to the effect of the invention of claim 1, the insertion loss amount control means can be obtained by decreasing the amplification degree of the first amplification means and simultaneously increasing the amplification degree of the third amplification means. While making it easier to estimate the call state as the reception state, it is possible to prevent the volume of the transmission signal transmitted by the transmission processing means from being reduced more than necessary.

  According to the present invention, when the alarm state detecting means detects that the safety device that emits an alarm sound by itself when an abnormality has occurred outputs the notification signal, the transmission signal collected by the microphone by the first amplification degree setting means The amplification factor of the first amplification unit for amplifying the signal is decreased, or the amplification factor of the fourth amplification unit for amplifying the received signal transmitted to the transmission processing unit is increased by the second amplification factor setting unit. Therefore, the insertion loss amount control means can easily estimate the call state as the reception state, and as a result, it is possible to listen to the reception signal through the speaker even in a situation where the safety device emits an alarm sound at a high volume. There is.

  A system configuration example of a housing information panel system using the housing information panel A of the present embodiment is shown in FIG. 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 is multiplexed and transmitted with the audio signal is illustrated, 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 via the call line L3. When the call button 57a is operated, the voltage level of the call line L3 is changed to change 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 configuration of the housing information board A of the present embodiment. As shown in FIG. 1, the housing information board A of this embodiment transmits the microphone 1, 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, the transmission processing unit 3 sends out the reception signal transmitted from the doorphone slave unit 50, the lobby intercom 60 or the alarm monitoring panel 80 to the speaker 2, and the transmission which inserts a loss into the transmission path from the microphone 1 to the transmission processing unit 3. A speech path loss insertion unit 4; a reception path loss insertion unit 5 that inserts a loss into the reception path from the transmission processing unit 3 to the speaker 2; 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; A first amplifier 7 is provided in the transmission path between the speech path loss insertion unit 3 and amplifies the transmission signal. A reception signal is provided in the reception path between the reception path loss insertion unit 4 and the speaker 2. A second amplifier 8 for amplifying, a third amplifier 9 for amplifying a transmission signal provided in a transmission path between transmission path loss insertion section 4 and transmission processing section 3, transmission processing section 3 and reception A fourth amplifier 10 provided on the reception path between the path loss insertion unit 5 and amplifying the reception signal; and a safety device (for example, fire) that emits an alarm sound when an abnormality occurs among one or more types of safety devices The alarm state detecting means 11 for detecting that the sensor S1 and the gas / CO detector S2) output the notification signal, and the alarm state detecting means 11 are the safety device (fire detector S1 or gas / CO detector S2). When the first to fourth amplifiers 7 to 10 are detected. And a gain setting means 12 to increase or decrease Re or amplification of one or two amplifiers (gain). Here, the transmission path loss insertion unit 4, the reception path loss insertion unit 5, and the insertion loss amount control unit 6 constitute a voice switch VSW. The voice switch VSW can be constituted by an analog integrated circuit, or can be realized by controlling DSP (Digital Signal Processor) hardware by software (program) for voice switch. The first to fourth amplifiers 7 to 10 have variable amplification degrees.

  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 amount in the transmission path loss insertion unit 4 is reduced, while the insertion loss amount in the reception path loss insertion unit 5 is increased. Conversely, the signal level of the reception signal is transmitted. If it is higher than the signal level of the speech signal, it is estimated that the voice signal is received, and the amount of insertion loss in the reception path loss insertion unit 5 is reduced, and at the same time, the amount of insertion loss in the transmission path loss insertion unit 4 is increased. . However, the total amount of loss inserted into the transmission path and the reception path is always 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. However, these functions are realized by a control unit (not shown) having a CPU as a main component, and the alarm state detection unit 11 and the gain setting unit 12 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 embodiment, when the alarm state detection unit 11 detects that such a safety device has output a notification signal, a detection signal is output from the alarm state detection unit 11 to the gain setting unit 12, and this detection signal is received. Since the gain setting means 12 decreases the amplification factor of the first amplifier 7, the difference between the signal levels of the transmission signal and the reception signal is reduced, and the insertion loss amount control unit 6 of the voice switch VSW changes the call state to the reception state. It becomes easier to estimate. As a result, the reception signal transmitted from the alarm monitoring panel 80 can be heard through the speaker 2 even in a situation where the safety device emits an alarm sound at a high volume.

  However, the gain setting means 12 receiving the detection signal may increase the amplification degree of the fourth amplifier 10 instead of decreasing the amplification degree of the first amplifier 7. That is, if the amplification factor of the fourth amplifier 10 that amplifies the reception signal transmitted to the transmission processing unit 3 is increased, the insertion loss amount control unit 6 can easily estimate the call state as the reception state. Even in a situation where the safety device emits an alarm sound with a large volume, the received signal can be heard reliably through the speaker 2. Further, if the amplification factor of the second amplifier 8 is increased at the same time as the amplification factor of the first amplifier 7 is decreased, the volume of the reception signal output from the speaker 2 is increased so that the reception signal can be easily and reliably heard. Can listen to.

  Further, if the gain setting means 12 decreases the amplification factor of the first amplifier 7 and increases the amplification factor of the fourth amplifier 10 at the same time, the insertion loss amount control unit 6 further estimates the call state as the reception state. This makes it easier to hear the received signal through the speaker 2.

  If the gain setting means 12 decreases the amplification factor of the first amplifier 7 and increases the amplification factor 9 of the third amplifier 9 at the same time, the insertion loss amount control unit 6 changes the call state to the reception state. It is possible to prevent the volume of the transmitted signal transmitted by the transmission processing unit 3 from being reduced more than necessary.

It is a block diagram which shows the principal part structure of the housing information board which concerns on this invention. It is a system configuration | structure figure of the housing information panel system containing the same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Microphone 2 Speaker 3 Transmission processing part 4 Transmission path loss insertion part 5 Receive path loss insertion part 6 Insertion loss amount control part 7 1st amplifier 8 2nd amplifier 9 3rd amplifier 10 4th amplifier 11 Alarm state Detection means 12 Gain setting means

Claims (5)

  Calls are made between doorphones installed inside each dwelling unit of the apartment and outside the dwelling unit, lobby intercom installed at the common entrance of the apartment, and alarm monitoring panel installed in the management room of the apartment Connected to one or a plurality of types of safety devices that automatically or manually notify the occurrence of an abnormality when the safety of the resident is threatened by being installed in a dwelling unit. In a housing information board provided with a security function for generating an alarm sound or a warning message corresponding to the occurrence of an abnormality and the type of the abnormality upon receiving a notification signal from the alarm, and notifying the occurrence and type of the abnormality to the alarm monitoring panel , A microphone and a speaker, and a transmission signal collected by the microphone is transmitted to a door phone child unit, a lobby intercom or an alarm monitoring panel. A transmission processing means for sending a reception signal transmitted from a door phone slave unit, a lobby intercom or an alarm monitoring panel to a speaker, a transmission path loss insertion means for inserting a loss into a transmission path from the microphone to the transmission processing means, Receiving path loss inserting means for inserting a loss in the receiving path from the transmission processing means to the speaker, and estimating a speech state by observing the transmission signal and the receiving signal, and transmitting path loss inserting means based on the estimation result And insertion loss amount control means for variably controlling the insertion loss amount by the reception path loss insertion means, and first amplification means for amplifying the transmission signal provided in the transmission path between the microphone and the transmission path loss insertion means. And a second amplifying means provided in the receiving path between the receiving path loss inserting means and the speaker for amplifying the receiving signal, and a transmitting path between the transmitting path loss inserting means and the transmission processing means. A third amplifying means for amplifying the transmitted signal, a fourth amplifying means for amplifying the received signal provided in the receiving path between the transmission processing means and the receiving path loss inserting means, and one or more types Among the safety devices, an alarm state detecting means for detecting that a safety device that emits an alarm sound when an abnormality occurs outputs a notification signal; and when the alarm state detecting means detects the notification signal output of the safety device. A housing information board comprising: first amplification degree setting means for reducing the amplification degree of one amplification means.   In place of the first amplification degree setting means in claim 1, a second amplification degree setting means for increasing the amplification degree of the fourth amplification means when the alarm state detection means detects the notification signal output of the safety device. Housing information board characterized by having   2. The house information board according to claim 1, wherein the first amplification degree setting means decreases the amplification degree of the first amplification means and simultaneously increases the amplification degree of the second amplification means.   2. The house information board according to claim 1, wherein the first amplification degree setting means decreases the amplification degree of the first amplification means and simultaneously increases the amplification degree of the fourth amplification means.   2. The housing information board according to claim 1, wherein the first amplification degree setting means decreases the amplification degree of the first amplification means and simultaneously increases the amplification degree of the third amplification means.

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