JP2008103976A - Interphone system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To integrate two controllers into one unit by changing the system configuration in such a way that only one power supply circuit is required. <P>SOLUTION: The interphone system comprises a multidwelling entrance machine 10 installed at the multidwelling entrance, a housing information panel 20 installed in the dwelling unit, and a controller which is connected between the housing information panel 20 and the multidwelling entrance machine 10 and is arranged in the building manager office. The controller (telephone call panel with video 30) is an integrated telephone call control function portion 31 and video control function portion 32 stored in one housing. The housing information panel 20 includes a monitor 22 to display a video photographed by a camera 11 of the multidwelling entrance machine 10, and a power circuit 23 for supplying DC power to the monitor 22. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an intercom system used in an apartment house or the like.

  As a conventional intercom system, for example, there is a system disclosed in Patent Document 1. This conventional system will be described with reference to FIG. In FIG. 2, TC is a call control device provided in the administrator room CR, and VC is a video control device provided in the administrator room CR and having a power supply circuit PS therein. The call control device TC also has a power supply circuit PS1. In the intercom system, the call control device TC controls the call signal, and the video control device VC controls the video signal.

  EP is a collective entrance machine provided in the collective entrance of an apartment house such as an apartment, CM is a camera provided in the collective entrance machine EP, VA1 to VAn are video adapters, J1 to Jn are multiple rooms R1 to Rn of the collective house House information boards M1 to Mn for intercom calls provided respectively in the monitor units are provided in a plurality of rooms R1 to Rn of the apartment house, and are installed separately from the house information boards J1 to Jn. . L1 is a call / control line, L2 is a video line, and L3 is a control line. Although not shown, a television door phone (entrance handset) having a camera is installed at the entrance of the dwelling unit, and is connected to the housing information panels J1 · Jn.

  This conventional intercom system can check images captured by the collective entrance machine EP using a monitor device provided separately from the house information panels J1... Jn. For example, when a visitor inputs a room number to be visited, for example, 101 by operating a numeric keypad (not shown) of the collective entrance machine EP and then presses a call button (not shown), the call from the collective entrance EP to the call / control line L1. A call signal comprising a house code and a call code is sent to the call control device TC.

  The call control device TC transmits a call signal (control signal) to the video control device VC, whereby power is supplied from the power supply circuit PS of the video control device VC to the camera CM of the collective entrance EP, and the video of the camera CM. The signal is transmitted to the house information board J1... Jn side through the video control device VC. When the call control device TC receives a call signal from the central entrance EP, the call control device TC sends the call signal to the housing information board J1 of the 101st room via the call / control line L1, and then the visitor and the resident of the 101st room. A call is made to and from.

  The video control device VC, when receiving the video signal from the camera CM, superimposes the video signal and the power signal output from the built-in power supply circuit PS and sends the video signal to each video adapter VA1. Yes. When a control signal is sent via the control line L3 from the housing information board J1 in the 101st room where the call is being made to the corresponding video adapter VA1, the video adapter VA1 is connected to the corresponding monitor device M1 and the video line. The video signal and the power signal are sent to the monitor device M1 in the 101st room by connecting the line with L2. Then, the monitor device M1 is activated and a visitor is displayed.

In this way, the resident in room 101 can confirm the visitor by calling with the visitor and the video of the monitor device M1. Here, when there is an automatic door for entrance at the collective entrance, when an unlock switch (not shown) of the housing information board J1 is operated, an unlock signal is sent to the electric lock of the collective entrance EP via the call / control line L1. Is sent and the automatic door is opened.
JP 2001-352540 A

  In the conventional intercom system, two control devices, a video control device and a call control device, are installed in the manager's room, and a large space for installing the two devices is required. Moreover, since a power supply circuit (power supply circuit) is required individually, there is a problem that two power supply circuits must be prepared.

  Therefore, an object of the present invention is to integrate two control devices by changing the system configuration so that only one power supply circuit is required.

  The present invention relates to a collective entrance machine installed in a collective entrance, a housing information board installed in a dwelling unit, and a control device connected between the housing information board and the collective entrance machine and installed in an administrator room. In the intercom system including the control device, the call control function unit and the video control function unit are integrally provided in one housing.

  According to the present invention, the call control device and the video control device are integrated into one housing, thereby reducing the installation space of the housing.

  In addition, since the housing information board has a monitor that displays images captured by the camera of the collective entrance machine, and a power supply circuit that supplies DC power to the monitor, a video signal is received from the control device in the manager's room. It is possible to eliminate the need to superimpose and send power. For this reason, the power supply circuit of the conventional video control device becomes unnecessary, and the power supply circuit can be supplied to the entire control device with one power supply circuit that the call control device has, and without increasing the size of the housing until now. It is possible to provide a call control function and a video control function in the same size case.

  An embodiment of the present invention will be described with reference to FIG. FIG. 1 is a block diagram showing a configuration of an intercom system according to the present invention.

  The intercom system shown in FIG. 1 includes a collective entrance machine 10 installed at a collective entrance, a housing information board 20 installed in a dwelling unit, and a call video board 30 as a control device installed in a manager's room. ing. The call video board 30 is connected between the house information board 20 and the collective entrance machine 10, and each device is connected by a video line, a call line, and a control line. The home information board 20 can communicate with each other.

  The call video board 30 is a function that controls the video in the system provided in the conventional video control device, and the call control function unit 31 that is a function that controls the phone call in the system provided in the conventional call control device. A video control function unit 32. Then, the two control units 31 and 32 are integrated into one housing by integrating the two control devices.

  The call video board 30 includes a power supply unit 33 that supplies power to the call control function unit 31 and the video control function unit 32. The power supply unit 33 is connected to a commercial power supply, and turns the AC power source into a 24V DC power source, and then turns it into a 5V DC power source, and supplies a DC power source having a necessary voltage to the function units 31 and 32. The power supply unit 33 also supplies power to the collective entrance machine 10.

  The call video board 30 has a function as a manager room parent machine having substantially the same function as the house information board 20 installed in each dwelling unit in addition to the function of controlling the call / video of the intercom system. When there is a call from the collective entrance machine 10, the call video board 30 outputs a call signal to the house information board 20, and when a call operation is performed on the house information board 20 side, the house information board 20 and the collective entrance machine. 10 is controlled so that a call can be made with the terminal 10.

  Next, the collective entrance machine 10 and the house information board 20 will be described. The collective entrance 10 includes a camera 11 that images a visitor, a modulation circuit 12 that modulates the video signal of the camera 11, for example, an operation unit 13 that includes a numeric keypad and a call button for designating a dwelling unit number, and a call circuit 14. It has.

  The housing information board 20 includes a call unit 21 for making a call with the collective entrance machine 10, a monitor 22 for displaying an image captured by the camera 11 of the collective entrance machine 10, a power supply circuit 23, and an operation unit 24. Have. The power supply circuit 23 is connected to a commercial power supply, and uses an AC power supply as a DC power supply of 24 V, for example, to supply a DC power supply to the calling unit 21 and the monitor 22.

  Thus, in the intercom system of the present invention, the house information board 20 has the monitor 22 built in the main body, and the monitor 22 is activated by the power circuit 23 of the house information board 20. For this reason, unlike the prior art, the monitor is not provided separately from the house information board, so there is no need to superimpose the power on the video signal from the video control device in the manager's room. Thus, since the video line L2 from the call video board 30 to the housing information board 20 transmits only the video signal, the length of the wiring is longer than that in the case where the conventional video signal and the power supply are superimposed. Can be lengthened.

  Thus, the control device of this intercom system does not require a power supply circuit for supplying power to the dwelling unit monitor, and the entire control device is a single power supply circuit that the conventional call control device has. It is possible to supply power to the controller, and the control device can be miniaturized. In this way, the call control function and the video control function are provided in a case of the same size as before without increasing the size of the case by eliminating the power supply circuit of the video control device that has been necessary in the past. As a result, it was possible to reduce the installation space for the chassis, which was required for two units.

  Next, the operation of the present invention will be described. A visitor comes to the collective entrance, inputs the dwelling unit number to be visited with the numeric keypad of the operation unit 13 of the collective entrance machine 10, and presses the call button. Then, a call signal is sent to the call control function unit 31 via the call control line L1. The calling signal is sent as it is to the house information board 20 via the call control line L1, and when the house information board 20 receives the calling signal, it makes a ringing tone and supplies the power of the power circuit 23 to the monitor 22. The monitor 22 is activated. In the call video board 30, the call control function unit 31 also outputs a call signal to the video control function unit 32.

  Upon receiving the call signal, the video control function unit 32 closes a switch (not shown) and supplies the DC power supply of the power supply unit 33 to the collective entrance machine 10, thus driving the camera 11 to photograph the visitor. . The video signal captured by the camera 11 is FM-modulated by the modulation circuit 12 and output to the video control function unit 32 via the video line L2.

  The modulated video signal is sent from the video control function unit 32 to the video adapter 40 via the video line L2, and then sent to the house information board 20. Here, the video line L2 sends only a video signal and does not send power. If necessary, a DC power supply 24V for confirming continuity may be sent superimposed on the video signal.

  In the house information board 20, a demodulation circuit (not shown) demodulates the modulated video signal and outputs it to the monitor 22. In this way, the image of the camera 11 of the collective entrance 10 can be confirmed on the monitor 22 in the dwelling unit. Here, if the call button in the operation unit 24 is operated on the house information board 20, the call part 21 of the house information board 20 and the call circuit 14 of the collective entrance 10 are connected, and an interphone call is performed between them. be able to.

It is a block diagram of the intercom system of the present invention. It is a system diagram of a conventional intercom.

Explanation of symbols

10 collective entrance machine, 11 camera, 12 modulation circuit, 13 operation unit,
14 Call circuit, 20 Housing information board, 21 Call section, 22 Monitor,
23 power circuit, 24 operation unit, 30 call video board,
31 Call control function part, 32 Video control function part, 33 Power supply part,
40 video adapter, tt

Claims (2)

A collective entrance machine installed at the collective entrance, a housing information board installed in a dwelling unit, and a control device connected between the housing information board and the collective entrance machine and installed in an administrator room In the intercom system,
The interphone system, wherein the control device is configured by integrating a call control function unit and a video control function unit in a single casing. 2. The interphone according to claim 1, wherein the house information panel includes a monitor that displays an image captured by a camera of the collective entrance machine, and a power supply circuit that supplies DC power to the monitor. system.

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