JPH01196953A - Two-party switching terminal set in multiple dwelling house monitor talking system - Google Patents

Abstract

PURPOSE:To allow house information panel with one line specification to cope with a monitor talking system with 2-line specification by providing a talking switching circuit connecting one of 2 sets of talking lines and one set of talking line of the house information panel side selectively and a multiple transmission terminal unit decoding a talking switching signal to operate the talking switching circuit. CONSTITUTION:When a call comes from a terminal set 2 to the house information panel 4 through one channel lA in two sets of channels lA, lB, a controller 1c of the alarm monitor panel 1 detects the call and a talking switching signal is sent to a talking switching terminal set 5 provided corresponding to the called house information panel 4 to operate a talking switching circuit 5b and to output a call tone to the called house information panel 4. Thus, when the interphone 4a of the called house information panel 4 is hooked off, it is possible to make a call with the called terminal set 2 through the talking line. Thus, the house information panel 4 of the existing one line specification is used as it is to revise the system into the 2-line specification.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a terminal for switching between two calls, which is suitably used in a supervisory call system for an apartment complex.

[Conventional technology] Recently, monitoring call systems are often used in apartment buildings such as condominiums, and these systems include an alarm monitoring panel in a manager's room as a terminal device, and a lobby intercom at the entrance. Each house is equipped with a housing information board, and each terminal device has an intercom, allowing mutual communication.

By the way, in the simplest of such monitoring call systems, there is only one communication line between the terminal devices, and this one line is used to communicate with each other.

However, such a system that does not have a single line communication path cannot adequately cope with the increase in the number of residential units and the frequency of calls using intercoms on terminal devices. Line specification system 2
It is hoped that it will be possible to change to a line specification system.

[Problem to be solved by the invention]

The present invention was made in view of the above circumstances, and has the following features:
The purpose of the present invention is to provide a two-call switching terminal capable of supporting a two-line specification monitoring call system by using the housing information board used in the line-specification residential complex monitoring system as is.

[Means to solve the problem]

The present invention proposed to achieve the above object includes a security monitoring board, a lobby intercom, and a housing information board as a terminal device having an intercom, and is configured by connecting these terminal devices with multiple signal lines. A terminal for switching between two calls, which is used by being additionally connected to each housing information board of a monitoring call system for apartment complexes, which connects either one of the two sets of call lines connected to the alarm monitoring board side and the above. A call switching circuit selectively connects one set of call lines on the housing information panel side and a call switching circuit that is connected to the multiplex signal line and makes a call by decoding the call switching signal sent from the alarm monitoring panel using a multiplex transmission method. This configuration includes a multiplex transmission terminal unit that operates a switching circuit.

[Effect]

The two-call switching terminal of the present invention is connected to the alarm monitoring side through two sets of communication lines, and is connected to the intercom of the housing information panel through one communication line.

Now, when a call is made to the housing information panel from a certain terminal device through one of the two sets of communication channels in the system, the controller of the alarm monitoring panel detects this call and receives the call. A call switching signal is sent to the call line switching terminal attached to the housing information board, activating the call switching circuit, and outputting a ring tone to the called housing information board. If you pick up the intercom, you will be able to talk to the calling party's terminal device through that line.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a diagram showing the configuration of a monitored call system incorporating a terminal for switching between two calls according to the present invention.

1 is an alarm monitoring panel installed in a manager's room, etc., 2.3 is a lobby intercom installed at a common entrance, etc., 4 is a housing information board installed in each dwelling unit, and 5 is additionally connected to housing information board 4. This is a two-call switching terminal device of the present invention, except for the alarm monitoring IM1 (all terminal devices have a multiplex transmission terminal unit to which a predetermined address is assigned in advance,
These multiplex transmission terminal units and the controller on the alarm monitoring board 1 side are wired to each other by multiplex signal lines ls.

To explain the individual terminal devices that make up the system, the alarm monitoring panel 1 operates an intercom la, a multiplex transmission terminal unit 1b, a controller lc having a CPU for monitoring and controlling the system, and a communication line switching contact 1d. intercom 1a and communication lines IA and IIB of 2 & Il, which will be described later.
It has a call disconnection circuit 1e for switching connection with the telephone.

In addition, the lobby intercom 2.3 is a multiplex transmission terminal unit that is connected to intercoms 2a and 3a connected to independent communication lines IA and IIB, and to a controller 1c provided on the alarm monitoring panel 1 side by a multiplex signal line ls. It is equipped with 2b and 3b.

Further, the housing information panel 4 includes an intercom 4a and a multiplex transmission terminal unit 4b connected to the multiplex signal line IS described above.
It is equipped with

In the above configuration, the two-call switching terminal 5 of the present invention has a multiplex transmission terminal 5a, one set of calls 11jo derived from the intercom 4a of the housing information board 4, and the two sets of call lines described above. In order to selectively connect either IA or IB, it has a call switching circuit 5b that switches the call line switching contact 5C, and the multiplex transmission terminal unit 5a is connected to the multiplex signal line ZS. ing.

One of the contacts 5C is connected to the alarm monitoring panel 1 via two sets of communication lines IA and IB, and the other of the contacts 5C is connected to the tm
intercom 4a of the housing information board 4 via the telephone line io.
Furthermore, in this embodiment, the address assigned to the multiplex transmission terminal unit 5a provided in the call switching terminal 5 is the address assigned to the multiplex transmission terminal unit 5a of the corresponding housing information board 4 connected to this terminal 5. The address is the same as the address assigned to the unit 4b, and when the call switching terminal 5 receives a call switching signal with a matching address, it is configured not to output a reply signal.

In such a configuration, when a call is made from the lobby intercom 2 to the n-th housing information board 4 (n) via the telephone line lA, the multiple transmission terminal unit 2b of the lobby intercom 2 transmits the multiple signal line IS. , the controller IC of the alarm monitoring panel 1 detects this call signal through the multiplex transmission terminal unit 1b, and sends out a calling signal for the n-th housing information board 4(n). Call switching terminal 5 provided in accordance with 4(n)
A call switching signal with an address specifying (n) is sent from the multiplex transmission terminal UNISO) lb to the multiplex signal line j+s.

At this time, the transmitted call switching signal is received by the multiplex transmission unit 5a provided in the n-th call switching terminal 5(n) with the matching address, and the call switching signal received in this way is is decoded, activates the call switching circuit 5b, switches the call line switching contact 5C, and connects the called call line IA to the call vAJo of the housing information panel 4(n).

On the other hand, the housing information board 4(n)'s multiplex transmission terminal UNISO) 4b
Now, check that the address of this call switching signal matches,
The calling buzzer of the intercom 4a sounds.

As a result, by removing the handset of the intercom 4a of the housing information board 4, it becomes possible to talk to the lobby intercom 2 of the calling party.

Further, when the telephone line IA is used in this manner, the system using the present invention is capable of using the other telephone line IB.
For example, in a system like the one shown in Figure 1 in which the lobby intercom 2.3 is equipped with independent calls NIAIA and IB, it is possible to make calls on two lines at the same time as shown below. be.

(1) Lobby intercom 2-alarm monitoring panel 1 (IA
) and lobby intercom 3 - housing information board 4 (IB) (2) lobby intercom 2 - housing information board 4 (A A) and lobby intercom 3 - housing information board 4 (lB) ( 3) Any one of the housing information m4 alarm monitoring panel 1 (I
Lobby intercom 3 (NB) of any one of A) and other housing information panels 4. FIG. 2 is a diagram showing the configuration of the internal circuit of the call switching terminal 5. It has an input terminal S1 connected to the multiplex transmission terminal unit on the monitoring panel 1 side or the multiplex transmission terminal unit on the lobby intercom 2.3 side, and an output terminal S2 connected to the multiplex transmission terminal unit on the housing information panel 4 side. The address is set by operating a dipstick (not shown).

In particular, in the above embodiment, the address assigned to the multiplex transmission terminal unit of the two-call switching terminal 5 is transferred to the multiplex transmission terminal unit of the housing information board 4 connected correspondingly to this switching terminal 5. 4b, but when the call switching terminal 5 receives a call switching signal with an address that matches the address assigned in this way,
In order to ensure that there are no problems with control using the multiplex transmission method,
The corresponding terminal of the multiplex transmission terminal unit 5a is set to the rHJ level so that no reply signal is output.

Further, a call switching circuit having a relay coil RY is connected to the control output terminal OUT of the multiplex transmission terminal unit, and by driving this relay coil RY, the 1-meter call line lO and the call line llA of the residential information g14 are connected.

A communication line switching contact 5c selectively connects to the IB.

It is configured to operate 5C.

〔Effect of the invention〕

According to the present invention, it is possible to change the system to a two-line specification by using the existing one-line residential information board as is, making it easy and inexpensive to convert the one-line monitoring call system into two.
Line specifications can be changed.

[Brief explanation of the drawing]

FIG. 1 is an example of a two-line specification monitoring call system constructed using the two-call switching terminal of the present invention, and FIG. 2 shows the internal circuit of the two-call switching terminal of the present invention. It is a diagram. (Explanation of symbols) l...Alarm monitoring panel 2.3...Lobby intercom 4...Residence information panel 5...Two call switching terminal 5a of the present invention...Multiple transmission terminal unit 5b. ...Call switching circuit 5C...Talking line switching contacts IA, IB...Talking line is...Multiple signal line

Claims (1)

[Claims] (1) As a terminal device with an intercom, it is equipped with an alarm monitoring panel, a lobby intercom, and a housing information panel, and these terminal devices are connected by multiple signal lines to provide information on each residence in a monitoring call system for apartment complexes. A terminal for switching between two calls, which is used by being additionally connected to the board, which connects one of the two sets of call lines connected to the alarm monitoring board side and one set of call lines connected to the housing information board side. and a multiplex transmission terminal unit connected to the multiplex signal line and deciphering the call switching signal sent from the alarm monitoring panel by a multiplex transmission method to activate the call switching circuit. Equipped with a terminal for switching between two calls.