JPH0846707A - Interphone system for multiple dwelling house - Google Patents

Abstract

PURPOSE:To obtain the interphone system in which a controller is provided to an alarm monitor panel, a frequency of a demodulation circuit of a talking destination is set identically by sending a frequency setting control signal to a control line upon a talking request so as to make inter-communication. CONSTITUTION:An interphone of any house (house 101) sends a talking request signal designating talking destination (house 102) to a control line LA. A controller 21 decodes this signal and sends a talking switch signal and a frequency setting control signal to the control line LA. An interphone set 1 of the house being the called party uses a CPU processing circuit 11 to detect the talking switching signal, then a contact SW of a talking section 19 is closed to connect the talking section 19 to the control line LA. Upon the receipt of the frequency setting control section by the CPU processing circuit 11, a modulation frequency and a demodulation frequency prepared for talking and for transmission and reception are set to a modulation circuit 15 and a demodulation circuit 17 of the talking section 19.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intercom system for a dwelling unit, which enables communication between dwelling units.

[0002]

2. Description of the Related Art Recently, in an apartment house, a house information board with an intercom installed in each dwelling unit, a lobby intercom installed in the common entrance, and an alarm monitoring board with an intercom installed in the management room are used as control lines and communication lines. An intercom system for multi-family dwelling, which is configured by connecting via an intercom, is used.In such an intercom system, in each dwelling unit, when the call from the lobby intercom is answered, the call from the alarm monitoring panel is answered. It was only possible to make a call and not to make a call between the dwelling units. When making a call, it was necessary to make a call through an outside line, that is, a telephone.

By the way, in such an intercom system, there is a method of wiring another communication line between the intercoms of the dwelling units in order to enable communication between the dwelling units. In a large number of large-scale apartments, the wiring becomes complicated and the construction is troublesome, so that it is almost impossible to realize.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above conventional problems, and provides an intercom system for an apartment house which enables mutual communication between the intercoms of the dwelling units of the apartment house. It is intended to be provided.

[0005]

The present invention is proposed to achieve the above object, and the intercom system for an apartment house according to claim 1 is installed in a house information panel with an interphone installed in each dwelling unit and a common entrance. With the lobby intercom
In an intercom system for an apartment house that is configured by connecting an intercom alarm monitoring panel installed in the control room via a control line and a communication line, each of the intercom of the housing information panel, the lobby intercom, and the alarm monitoring panel The call section connected to the call line is equipped with a modulation circuit that can change and set the modulation frequency and a demodulation circuit that can change and set the demodulation frequency.The alarm monitoring panel was connected to the control line. When a controller receives a call request signal designating the other party from any of the above intercoms, the controller sends a frequency setting control signal to the above control line so that the intercoms of the other parties can communicate with each other. The frequencies of the modulation circuit and the demodulation circuit of the communication unit provided in each are set to correspond to each other and changed and set.

An intercom system for an apartment house according to claim 2 includes an intercom house information panel installed in each dwelling unit,
In an intercom system for an apartment house that is configured by connecting a lobby intercom installed in the common entrance and an alarm monitoring panel with intercom installed in the management room via a control line and a communication line, Each of them is provided with a call unit provided with a call switching contact for controlling the connection with the call line, the alarm monitoring panel is provided with a controller connected to the control line, and this controller, through the control line, When receiving a call request signal designating the other party from any of the intercoms, by outputting a call switching control signal through the control line,
By connecting the call switching contacts of the intercoms that are parties to each other to the call line side, both parties can talk.

According to another aspect of the intercom system for a housing complex of the present invention, when the alarm monitoring panel connects the intercom of the house information panel for which a call request has been made and the intercom of the house information panel of the other party of the call by a communication line, the alarm monitoring is performed. The board controller outputs the busy signal to the intercom of another house information board through the control line.

[0008]

According to the intercom system for housing complex of claim 1, it becomes possible to make a call through the intercom of each dwelling unit by the following procedure. When the intercom (calling side) of the housing information panel installed in one of the dwelling units sends a call request signal that specifies the call destination to the control line, the controller decodes this call request signal and the call destination is called. A call command signal is sent to the intercom (the called side), and a frequency setting control signal having the same modulation and demodulation frequencies is sent to both the calling side and the called side.

As a result, the call parts of the intercoms of the called side and the calling side are connected to the call line, and the same frequency (for example, f1) is set in the modulation circuit of the calling side and the demodulation circuit of the called side. , F1 for the demodulation circuit on the calling side and the modulation circuit on the called side
A modulation frequency of the same frequency (for example, f2) different from that is set, and both parties can communicate with each other. In such an intercom system of the present invention, one of the frequencies prepared in advance is selected to change between the calling side and the called side,
Since the demodulation frequencies are set to correspond to each other and set so as to be switched, it is possible to share the same call line and perform two-way simultaneous call by a plurality of intercoms.

According to the intercom system for housing complex of claim 2, a call request signal designating the other party of the call is sent to the control line from the intercom (calling side) of the house information board installed in any of the dwelling units. Then, the controller decodes this call request signal and sends a call command signal to the intercom (callee) of the other party of the call, and connects the call contact of the call section to the call line side, so that mutual call is performed. Only the intercom is connected to the call line, so the secret story is kept.

Further, according to the intercom system for a housing complex of claim 3, when the calling intercom and the called intercom are connected by the alarm monitoring panel, the controller of the alarm monitoring panel controls the intercom of the calling side and the called party. Since the busy signal is output to the intercom of the other home information panel through the line, the call interruption of the intercom of the other home information panel can be prevented.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an intercom system for a housing complex according to the present invention will be described below with reference to the drawings. FIG. 1 shows a basic configuration of an intercom system for a housing complex described in claim 1. Here, only the intercom, which is a main part, is shown.

The intercom 1 of the house information board installed in each dwelling unit, and the lobby intercom 3 installed at the common entrance,
The intercom 2 of the alarm monitoring panel installed in the control room is connected via the control line LA and the call line LB. The intercom 1 of the house information board installed in each dwelling unit includes a CPU processing circuit 11 as a control unit, a modulation circuit 15 and a demodulation circuit 17 as a communication unit, and a microphone 16 for transmission and demodulation on the modulation circuit 15 side. The circuit 17 is provided with a speaker 18 for receiving a voice. Reference numeral 13 is a display circuit, and 14 is a key input circuit.

The CPU processing circuit 11 is connected to the control line LA via the transmission circuit 12, and the call section 19 is connected to the call line LB via the call contact SW, and the modulation circuit 15 and the demodulation circuit 1 are connected.
The modulation frequency 7 and the demodulation frequency 7 are switched and set by a frequency switching setting control signal sent from the controller 21 of the alarm monitoring panel 2 described later.

Lobby intercom 3 installed at the entrance
Also includes a CPU processing circuit 31 as a control unit, a modulation circuit 35 and a demodulation circuit 37 as a communication unit 39, a microphone 36 for transmission on the modulation circuit 35 side, and a speaker 38 for reception on the demodulation circuit 37. It is provided. The CPU processing circuit 31 is connected to the control line LA via the transmission circuit 32, the call section 39 is connected to the call line LB via the call contact SW, and the modulation circuit 35 and the demodulation circuit 37 are connected to the intercom 1 of the house information board.
Similarly, the modulation frequency and the demodulation frequency are switched and set by the frequency switching setting control signal sent from the controller 21 of the alarm monitoring panel 2 described later. Reference numeral 33 is a display circuit, and 34 is a key input circuit.

On the other hand, the intercom 2 of the alarm monitoring panel installed in the control room is the controller 2 that controls the system.
1, a modulation circuit 25 and a demodulation circuit 27 are provided as a communication unit 29, a microphone 26 for transmission is provided on the modulation circuit 25 side, and a speaker 28 for reception is provided on the demodulation circuit 27. The controller 21 also controls the control line L via the transmission circuit 22.
In A, the call unit 29 is connected to the call line LB via the call contact SW, and the modulation circuit 25 and the demodulation circuit 27 are switched between the modulation frequency and the demodulation frequency by the controller 21 as in the intercom 1. It is controlled. Reference numeral 23 is a display circuit and 24 is a key input circuit.

According to such an intercom system, which one is the intercom of the dwelling unit (dwelling unit 101)?
Then, when a call request signal designating the callee (dwelling unit 102) is sent to the control line LA, the controller 21 decodes this signal and sends a call switching signal and a frequency setting control signal to the control line LA. When the CPU processing circuit 11 detects a call switching signal in both intercoms 1 on the dwelling unit side that is the other party of the call, the contact SW of the call section 19 is closed and the call section 19 is connected to the control line LA. Further, when the CPU processing circuit 11 receives the frequency setting control signal, each of the modulation circuit 15 and the demodulation circuit 17 of the communication section 19 is used for transmission, which is selected from a plurality of combinations prepared in advance for communication. , The modulation frequency and the demodulation frequency for receiving are switched and set.

In this case, the combination of frequencies switched and set by the frequency setting control signal is, for example, when a call is made between the intercoms A and B of two dwelling units, the frequencies for transmission and reception on the A side are set. If set to f1 and f2, the frequencies for receiving and transmitting on the other B side are f1 and f2.
FIG. 2 shows three combinations A to C of frequencies that can be used in the intercom system of the present invention. In the combination A, the modulation frequency A1 is used for transmitting, the demodulation frequency A2 is used for receiving, and the combination B is used. In, the modulation frequency B1 is used for transmission and the demodulation frequency B2 is used for reception. In the combination C, the modulation frequency C1 is used for transmission and the demodulation frequency C2 is used for reception. Without limitation, more frequency combinations can be adopted, and calls can be made between multiple intercoms using the same call line. The frequencies are higher in the order of A, B, and C.

In the above example, the intercoms of the housing information board on the dwelling unit side are shown, but the present invention is not limited to such an example, and the housing information board, the alarm monitoring board, and the lobby intercom may be used. Needless to say, it can be applied to the mutual call. Further, in order to limit private talk for a long time, the call time may be forcibly cut off after a predetermined time has elapsed.

FIG. 3 shows the basic configuration of the intercom system for a housing complex according to claim 2. The intercom 5 of the housing information board installed in each dwelling unit has a CPU 51
And a transmission section 52 connected to the control line LA, a call section 53 having a microphone and a speaker, a ten-key pad 54 for performing various operations, a ringing tone sending section 55, a dwelling unit call indicator light 56, a call indicator 57. Are provided respectively, and the call unit 53
Has an internal power supply for a call and a call contact for connecting the call section 53 to the call line LB. The call contact shown in the figure is composed of two switching contacts RL1 and RL2, and the switching contact RL1 switches the call unit 53 between the intercom sub unit 58 installed at the entrance of each dwelling unit and the call line LB. The switching contact RL2 is used for connection, and when connecting the call unit 53 and the call line LB, the switching contact RL2 is a capacitor C1 for cutting direct current.
Is provided for inserting the capacitor or bypassing the capacitor C1. Such a call switching contact bypasses the capacitor C1 when the intercom is on the calling side and is directly connected to the call line LB. When it is on the called side, the calling section 53 is It is connected to the communication line LB via the capacitor C1. Since the lobby intercom (not shown) does not have an internal power supply in the call section, when making a call with the intercom 5 on the dwelling unit side, the call section 53 bypasses the capacitor C1 and is connected to the call line LB. It

On the intercom 4 of one of the alarm monitoring boards,
Controller 41 and transmission section 4 connected to control line LA
2 and a call section 43 having a microphone and a speaker, and a RAM 44 is connected to the controller 41. Here, the RAM 44 stores information necessary for controlling the system, for example, an intercom during a call, and the controller 41 causes the control line LA to switch the call switch R.
By outputting the L1 and RL2 control signals, the call contact of the call section 53 of the intercom of the called party can be switched and controlled.

Further, the controller 41 connects the intercom 5 of the house information board, which has output the call request signal, and the intercom 5 of the house information board, which is the other party of the call, to the call line LB.
When connecting with, the intercom 5 of the other house information board that outputs the busy signal through the control line LA
Then, the talking lamp 57 is turned on. Note that the lobby intercom is omitted in FIG. 3, but the same is true of mutual calls between the lobby intercom, the intercom 5 on the dwelling unit side, and the intercom 4 on the alarm monitoring panel side.

Next, a procedure for making a call from the dwelling unit 101 and making a mutual call with the dwelling unit 102 will be described with reference to FIG. First, in order to call the dwelling unit 102 from the dwelling unit 101, lift the handset of the dwelling unit 101 and operate the ten-key 54 to input 102. In this case, when the intercom 5 installed in the dwelling unit 101 has the function of an outside line telephone, the ten key 54 is operated to input [*] [1] [0] [2]. In this way, when the call request signal is sent from the intercom 5 to the control line LA, the controller 41 of the alarm monitoring panel 4 determines that there is a call from the dwelling unit 101 to the dwelling unit 102.

Then, the controller 41 refers to the RAM 44 to determine whether or not the dwell unit 102 and another intercom are in a call. If not, the controller 41 sends a call switching control signal to the control line LA. Then, the intercom section 5 of both intercoms that are parties to each other
The call switching contacts RL1 and RL2 of 3, 53 are switched. In the housing information board 5 of the dwelling unit 102 that received the call, the CPU 5
1, the dwelling unit calling light 56 is turned on, and the ringing tone sending section 55 causes the ringing tone to be emitted.

When the handset of the intercom 5 of the dwelling unit 102 is raised in response to this ringing sound, the switching contact RL
1 and RL2 are switched, and the call unit 53 is connected to the call line LB through the capacitor C1 to enable a call. That is, in the intercom on the calling side, the contact point RL1
Is switched from the intercom 58 to the call line LB side, and the contact point R
L2 is switched to the bypass side of the capacitor C1, the call unit 53 is directly connected to the control line LB, and in the other intercom on the called side, the contact RL1 is switched from the intercom 58 to the call line LB side, and the contact RL2 is Capacitor C1
Through, the call unit 53 is connected to the control line LB via the capacitor C1.

Here, when the handset of the intercom 5 is taken up, the ringing of the ringing tone is stopped, a call is made possible, and a call is started between the dwelling unit 101 and the dwelling unit 102. The call state is forcibly cut off after a lapse of a predetermined time. When the call ends and the handset returns to the state before the call, the call switching contact RL1 of the intercom 5 of the dwelling unit 101 is returned to the original state, and the call line LB and the call unit 5 are connected.
3 is separated. Also, the intercom 5 of the dwelling unit 102
The switch contact RL1 and the call switch contact RL2 are returned to the original state, and the call line LB and the call section 53 are separated.

When a call is started between any of the intercoms, a call-in-progress signal is sent from the controller 41 of the alarm monitoring panel 4 through the control line LB, so that the CPUs 51 of all the other intercoms 5 which are not in the call are notified of this. It detects and lights up the call light 57. In such a system of the present invention, since only the intercom during the call is connected to the call line provided in the call section to enable the two-way call, the confidential talk is kept and the intercom not related to the call is maintained. In this way, the contents of this call will not be leaked, and the privacy of the dwelling can be protected.

[0028]

As described above, in the intercom system for a housing complex according to the first aspect of the present invention, it is possible to make a call between the intercoms at the same time by using the existing communication line wired in the housing complex. In the intercom system for a housing complex according to claim 2, as with the intercom system according to claim 1, a call line can be used to make a call using the intercom of the dwelling unit. Since only one is closed, no other calls are leaked and privacy can be maintained during a call.

In the intercom system for a housing complex according to claim 3, when a call is started between the intercoms of the housing information boards of any of the dwelling units, the intercom of the other housing information boards is informed of the busy signal from the alarm monitoring board. Is output, other home information boards can identify this state and prevent interruption during a call.

[Brief description of drawings]

FIG. 1 is a block diagram showing a basic configuration of an intercom system for a housing complex according to claim 1.

FIG. 2 is an explanatory diagram showing a combination example of frequencies of a modulation circuit and a demodulation circuit.

FIG. 3 is a block diagram showing a basic configuration of an intercom system for a housing complex according to claim 2.

[Explanation of symbols]

 1,5 Residential information panel intercom 2,4 Alarm monitoring panel intercom 3 Lobby intercom 19,29,39,53 Communication section 15,25,35 Modulation circuit 16,26,36 Microphone 17,27,37 Demodulation circuit 18, 28,38 Speaker 21,41 Controller 58 Doorphone subunit LA Control line LB Call line RL2 Call switching contact

Claims (3)

[Claims] [Claim 1] A housing information panel with an intercom installed in each dwelling unit, a lobby intercom installed in a common entrance, and an alarm monitoring panel with an intercom installed in a management room are connected via a control line and a communication line. In the intercom system for multi-story housing, the intercom of the housing information board, the lobby intercom,
The communication part connected to each communication line of the intercom of the alarm monitoring panel is provided with a modulation circuit that can change and set the modulation frequency and a demodulation circuit that can change and set the demodulation frequency. The board is equipped with a controller connected to the control line, and this controller sends a frequency setting control signal to the control line when it receives a call request signal designating the other party from any of the above intercoms. , An intercom system for an apartment house configured to change and set the frequencies of the modulation circuit and the demodulation circuit of the communication section provided in each of the intercoms that are parties to each other. 2. A home information board with an intercom installed in each dwelling unit, a lobby intercom installed in a common entrance, and an alarm monitoring board with an interphone installed in a management room are connected via a control line and a call line. In the intercom system for the housing complex, each of the intercoms of the housing information boards is provided with a call section provided with a call switching contact for controlling the connection with the call line, and the alarm monitoring panel is provided with a control line. The controller is connected to the controller, the controller outputs a call switching control signal through the control line when a call request signal designating a call partner is received from any of the intercoms through the control line. By connecting the above-mentioned call switching contacts of the intercoms that are parties to each other to the call line side, it is possible for both parties to make calls to the housing complex. Tha phone system. 3. An intercom of another house information board is connected through the control line when the intercom of the house information board from which the controller outputs a call request signal and the intercom of the house information board of the other party of the call are connected by a call line. The intercom system for a housing complex according to claim 2, wherein the intercom system is configured to output a busy signal.