JP2010239222A - Interphone system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an interphone system in which the work for adjusting the volume of received voices in a collective entrance unit is easy, and the volume is prevented from being adjusted by outsiders who is without permission. <P>SOLUTION: An interphone system includes a house information panel, installed into each dwelling unit of a collective housing; a collective entrance unit, installed into the collective entrance and including a speech means having a microphone and a speaker; and a control device for controlling an interphone speech between the collective entrance unit and the house information panel. In the interphone system, the collective entrance unit includes an operating means; a variable amplifying means for controlling the volume of voices outputted by the speaker; and an amplification factor adjusting circuit for adjusting the amplification factor of the variable amplifying means, according to an input signal inputted via the operating means during an interphone speech. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an intercom system.

  An intercom system is installed in the housing complex. This intercom system is composed of a housing information board installed in each dwelling unit, a management room master unit installed in the management room, and a collective entrance machine installed in the collective entrance. Intercom calls can be performed (see, for example, Patent Document 1).

  In the above intercom system, when a visitor comes to the collective entrance and calls a certain dwelling unit, first, a desired dwelling unit number is designated by the collective entrance unit and a call button is pressed. As a result, the housing information board of the desired residence number is called, and when the resident presses the call button on the called house information board side, an interphone call is made between the visitor and the resident. Can do.

  By the way, when an interphone call is made at the central entrance, it is desirable to be able to adjust the call volume in the intercom call according to the situation of the visitor or the environment around the central entrance. That is, if the visitor's hearing is reduced or there is a noise source around the entrance hall, the resident's voice will be heard by the visitor during the intercom call unless the call volume is increased. It's hard to hear. Conversely, if the visitor's ears are good and there are no noise sources around the entrance hall, there is no need to increase the call volume.

  For this reason, in the conventional example, a variable resistor is provided in the transmission amplifier circuit in the call circuit built in the collective entrance machine, and the resistance value of the variable resistor is adjusted using a tool such as a screwdriver. Thus, the volume generated from the speaker of the collective entrance machine is adjusted to increase or decrease (see, for example, Patent Document 1).

JP 2002-185625 A

  In the above-described conventional example, in order to adjust the resistance value of the variable resistor of the communication circuit provided inside the collective entrance machine, it is necessary to remove the exterior panel of the collective entrance machine.

  However, in the above conventional example, in order to increase / decrease the volume generated from the speaker of the collective entrance machine, it is necessary to remove the exterior panel of the collective entrance machine, adjust the volume, and then attach the exterior panel. For this reason, there is a problem that the operation is complicated.

  In the above conventional example, in order to facilitate the work for adjusting the volume, a part or all of the adjustment knob for adjusting the resistance value of the variable resistor for adjusting the volume is exposed to the outside of the exterior panel. It is possible to design.

  However, if some or all of the adjustment knobs of the variable resistor for adjusting the volume are exposed outside the exterior panel in this way, anyone can adjust the volume. There is a problem that the volume may be adjusted to a volume that is too high, or conversely, the volume may be changed to a volume that is difficult to hear. That is, there is a problem that the volume may be adjusted to a level that does not match the actual situation.

  As another conventional example, there is a collective entrance machine that adjusts the transmission amplifier by using the microphone to pick up the sound around the collective entrance machine and judging the noise level. There is a problem that it does not correspond to hearing ability.

  It is an object of the present invention to provide an intercom system in which the work for adjusting the volume of received sound in a collective entrance machine is easy and the volume is not arbitrarily adjusted by an outsider.

  The present invention relates to a housing information board installed in each dwelling unit of a housing complex, a collective entrance device installed at a collective entrance and having a calling means including a microphone and a speaker, the collective entrance device, and the housing. In an interphone system configured with a control device that controls intercom calls with an information board, operation means, variable amplification means for controlling the volume of sound output from the speaker, and the operation means during the interphone call The intercom system is characterized in that the collective entrance machine has an amplification factor adjustment circuit that adjusts the amplification factor of the variable amplification means in accordance with the input signal inputted in the above manner.

  ADVANTAGE OF THE INVENTION According to this invention, the operation | work for adjusting the volume of the incoming call sound in an entrance hall is easy, and there exists an effect that a volume is not adjusted arbitrarily by an outsider.

1 is a block diagram illustrating an intercom system 100 that is Embodiment 1 of the present invention. FIG. 1 is a block diagram showing a configuration of a collective entrance machine 10. FIG. 3 is a flowchart showing the operation of the first embodiment. It is a figure which shows the example of a display of the display part 12 in the collective entrance machine 10. FIG.

  The modes for carrying out the invention are the following examples.

  FIG. 1 is a block diagram showing an intercom system 100 that is Embodiment 1 of the present invention.

  The intercom system 100 includes a housing information board installed in each dwelling unit of the apartment house, a collective entrance machine installed at the collective entrance and having a calling means including a microphone and a speaker, the collective entrance machine, and the housing This is an intercom system that includes a control device that controls intercom calls with an information board.

  That is, the intercom system 100 includes a housing information board JB101,..., JB303,... Provided in the dwelling unit, a collective entrance machine 10 provided in the collective entrance, and the housing information board and the collective entrance machine 10 described above. And a control unit 20 that controls intercom calls between them and a management room master unit 30. The management room master unit 30 is provided in the management room and has basically the same function as the house information boards JB101,..., JB303,.

  These devices are connected via a control signal line Lc and an audio signal line La, and are also connected to a video signal line as necessary.

  The housing information board JB101 is provided for the dwelling unit of the 101st room, and the housing information board JB303 is provided for the dwelling unit of the 303rd room. Further, the entrance cordless handset C101 is connected to the house information board JB101, and the entrance cordless handset C303 is connected to the house information board JB303.

  FIG. 2 is a block diagram illustrating a configuration of the collective entrance machine 10.

  The collective entrance machine 10 includes a control unit 11, a display unit 12, an operation unit 13, a transmission / reception unit 14, a call unit 15, a microphone 16, a variable amplifier 17, a speaker 18, and an amplification factor adjustment circuit 19. Have

  The control means 11 is composed of an MPU (microprocessor) or the like and controls the entire entrance hall 10.

  The display means 12 displays the dwelling unit number corresponding to the calling dwelling unit before the start of the intercom call, and switches the display so as to display the call volume level after the start of the intercom call.

  The operation means 13 has a numeric keypad for inputting a dwelling unit number and a call button. The transmission / reception means 14 transmits / receives a control signal. The call means 15 transmits and receives audio signals. The microphone 16 inputs sound around the collective entrance 10.

  The variable amplifying means 17 (variable amplifying circuit) is an example of an amplifying circuit that is configured by, for example, an electronic volume and controls the volume of sound output from the speaker 18, and is electrically supplied from the control means 11 or the amplification factor adjusting circuit 19. It is controlled by a simple signal. The speaker 18 is a device that outputs sound.

  The electronic volume is means for electrically controlling the volume by a signal from a microcomputer (control unit). Further, instead of the electronic volume, a circuit that adjusts the volume by electrically switching the resistance in a circuit having a plurality of resistors may be used.

  The amplification factor adjustment circuit 19 is a circuit that adjusts the amplification factor of the variable amplification unit 17 based on the numeric keypad of the operated manipulation unit 13 during an interphone call. This amplification factor corresponds to the numeric value from “1” to “9” of the numeric keypad, and the amplification factor is increased or decreased according to the numeric value of the numeric keypad operated during the interphone call.

  Next, the operation of the above embodiment will be described.

  FIG. 3 is a flowchart illustrating the operation of the first embodiment.

  In S1, the visited dwelling unit is called. That is, for example, the dwelling unit number “703” of the room 703 is designated from the collective entrance machine 10 using the numeric keypad of the operation means 13.

  FIG. 4 is a diagram illustrating a display example of the display unit 12 in the collective entrance 10, and FIG. 4 (1) is a diagram illustrating an example in which the display unit 12 displays a dwelling unit number.

  As shown in FIG. 4 (1), the display unit 12 of the collective entrance machine 10 displays the dwelling unit number “703” that is the calling dwelling unit. Thereafter, when a call button provided on the operation means 13 is pressed in S2, a call signal is output from the transmission / reception means 14 to the house information panel in the "703" room.

  When the call button is operated on the house information board side in S3, an interphone call can be made between the house information board and the collective entrance machine 10 via the voice call signal line La in S4. Then, the control device 20 controls.

  FIG. 4B is a diagram illustrating an example in which the display unit 12 displays the call volume.

  When the intercom call can be made between the housing information board in the “703” room and the collective entrance 10 via the voice call signal line La, the control means 11 displays the display means 12 of the collective entrance 10. As shown in FIG. 4 (2), the call volume “5” is switched to display.

  That is, the display on the display means 12 is switched from the display “703” of the dwelling unit number to the level display “5” of the call volume. The call volume level at the start of the call is set to “5”, which is an intermediate level.

  By the way, at the upper part of the display unit 12, there is a function display unit 12C indicating what the display unit 12 is currently displaying. In S5, the display is switched from "Specify calling dwelling unit" to "Set call volume". A message indicating that the reception volume can be set is displayed. Viewing this display, the visitor can recognize that the reception volume can be set.

  Thus, since the dwelling unit number and the volume level are switched and displayed on one display means 12 before and after the start of the interphone call, there is no need to provide two display means 12 and for the visitor. Can reliably recognize the current volume level.

  After the call is started, in S6, the visitor confirms the sound volume displayed on the display means 12, and operates the numeric keypad of the operation means 13, so that the sound volume level, that is, the incoming call output from the speaker 18 is displayed. The volume can be adjusted. The sound from the speaker 18 can be adjusted in nine steps according to the numeric keys “1” to “9”. In S7, the amplification factor of the variable amplifying means 17 is determined according to the value of the numeric key pressed during a call. Is adjusted. Then, in S8, when the call is finished, the process is finished.

  As described above, by operating the numeric keypad, the volume of the sound output from the speaker 18 can be adjusted. Therefore, even if the sound from the speaker 18 is small, the sound is loud depending on the individual differences and the environment of the entrance hall. To make it easier to hear. When the voice output from the speaker 18 is small, the visitor designates a number larger than “5”, for example, “7” with the numeric keypad. As a result, the amplification factor adjustment circuit 19 increases the amplification factor (gain) of the variable amplification means 17 connected to the speaker 18 in accordance with the numeric value “7” of the numeric keypad, thereby increasing the volume. Thereby, the visitor can adjust to the optimal volume during the intercom call.

  In the above embodiment, the volume adjustment is performed according to the input signal input via the operation means 12 during the interphone call, so there is no problem that an outsider adjusts the volume without permission.

  When the call by the visitor ends, the amplification factor adjustment circuit 19 returns the amplification factor to the original state so that the volume becomes “5”. That is, the amplification factor adjustment circuit 19 changes the amplification factor only during the call to adjust the volume, and when the next call by the visitor is started, the volume adjustment is reset and the initial call volume is set. The call is started from the volume “5”.

  The operation means 13 is an example of a numeric keypad for inputting a dwelling unit number. The amplification factor adjustment circuit 19 is an example of a circuit that adjusts the amplification factor of the variable amplification means based on the operated numeric keypad during an interphone call. Moreover, the collective entrance machine 10 has a display means for displaying the dwelling unit number corresponding to the calling dwelling unit before starting the intercom call. The display means 12 is an example of means for displaying the call volume level instead of displaying the dwelling unit number after the start of the intercom call.

  In the embodiment, the reception volume is changed by using all the keys of the numeric keypad. However, only two arbitrary keys may be used. For example, the volume level may be adjusted using only the upper and lower keys “8” and “2” centered on the numeric keypad “5”.

  In this case, the key “2” is a key for controlling to decrease the current volume, and the key “8” is a key for controlling to increase the current volume. The switch portion of the key “2” and the key “8” may be provided with an LED that blinks when the volume can be set as a means for easily recognizing the presence.

  Further, not only the reception volume but also the transmission volume may be adjusted.

DESCRIPTION OF SYMBOLS 100 ... Intercom system, 10 ... Collective entrance machine, 11 ... Control means,
12 ... Display means, 13 ... Operation means, 15 ... Communication means, 17 ... Variable amplification means,
18 ... Speaker, 19 ... Amplification adjustment circuit.

Claims (3)

A housing information board installed in each dwelling unit of the apartment house, a collective entrance machine installed at the collective entrance and equipped with a calling means including a microphone and a speaker, and the collective entrance machine and the housing information board. In an intercom system configured with a control device that controls intercom calls,
Operating means;
Variable amplification means for controlling the volume of sound output from the speaker;
An amplification factor adjustment circuit for adjusting the amplification factor of the variable amplification unit according to an input signal input through the operation unit during the interphone call;
An intercom system characterized in that the collective entrance machine has. In claim 1,
The operation means is a numeric keypad for inputting a dwelling unit number,
The intercom system, wherein the gain adjustment circuit is a circuit that adjusts the gain of the variable amplification means based on the operated numeric keypad during the interphone call. In claim 2,
The collective entrance machine has display means for displaying a dwelling unit number corresponding to the calling dwelling unit before the start of the intercom call, and the display means displays the call volume level instead of displaying the dwelling unit number after the start of the intercom call. An intercom system characterized by being a means for displaying.

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