JPH0568108A - Interphone system for complex housing - Google Patents

Abstract

PURPOSE:To obtain plural channels and plural video signal lines by simultaneously transmitting plural video signals from plural shared entrance slave machines to plural house terminals in this complex housing interphone system. CONSTITUTION:At the time of receiving a 1st channel using instruction signal, a CPU 11 in each entrance slave machine sends a control signal to a relay control part RYa in a video signal switch 4a through a switch control interface 14 and the contact of its corresponding video signal sending adaptor 5a (or 5b) to close the contact. In another home terminal 30 accessed through the contact, a 2nd channel using instruction signal (access signal) sent from a CPU 12 in a central control device 20 through a talking/communication line 2 is inputted to a CPU 31 through a talking/communication interface 32. The CPU 31 sends a start signal to a moitor television(TV) 39 through a control part 33 to start the TV 39. At the time of receiving the 2nd channel using instruction signal, the CPU 31 switches a video signal receiving adaptor 35, so that the TV 39 is connected to the 2nd video signal 4 through a branch 6 and a contact M of the adaptor 35 and a video signal obtained by a TV camera 13 in the 2nd entrance slave machine 1b can be displayed.

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 an apartment house used in an apartment house such as an apartment.

[0002]

[Prior Art] In an apartment house such as an apartment,
A remote unlocking device is installed on the door of the common entrance to ensure the security of each resident. This remote door unlocking device for shared entrance doors uses an intercom with a TV / camera to check the visitors who came to the entrance, and then each resident unlocks the entrance door by remote control from the dwelling unit side or The person himself / herself unlocks the front door with the key of the door of his / her dwelling unit before entering.

In a large-scale housing complex with a large number of units,
There are two or more entrances, and intercom entrance slaves are installed at each entrance so that a call can be made between each slave and each dwelling unit.

As shown in FIG. 2, the conventional intercom system for large-scale housing includes a central control unit 20, entrance slaves 1a and 1b installed in a common entrance, and a monitor / TV installed in each dwelling unit. It is composed of a dwelling unit terminal 30 to which 39 is attached and a video signal switching device 40, and is connected by the call / communication lines 1 and 2 and the video signal line 3.

The central control unit 20 comprises a CPU 21 and two call / communication interfaces 22 and 23.
21 is connected to the call / communication lines 1 and 2 via two call / communication interfaces 22 and 23.

Each of the entrance slaves 1a and 1b includes a CPU 11, a call / communication interface 12, a television / camera 13, and a switch control interface 14, and the CPU 11
Is connected to the call / communication line 1 via the call / communication interface 12, and the video signal output from the TV / camera 13 is guided to the video signal switch 40.
The switching signal output from U11 is guided to the video signal switching device 40 via the switching device control interface 14.

Each housing unit terminal 30 is provided with a CPU 31, a call / communication interface 32, and a monitor / television control unit 33. The CPU 31 is a call / communication interface.
It is connected to the call / communication line 2 via 32, and the CPU 31
The control signal output from the control unit 33 is guided to the control unit 33 that controls the monitor / television 39. And monitor / TV 39
Are connected to the video signal line 3 via the branching device 5.

Next, the operation of the conventional intercom system thus constructed will be described.

When a visitor performs an operation of calling a specific dwell unit terminal 30 in the entrance slave 1a or 1b, the CPU 11 causes the call / communication line 1 to operate via the call / communication interface 12.
Send a call signal to. This calling signal is the central control unit.
When input to the CPU 21 via the call / communication interface 22 of 20, the CPU 21 sends a first call path use command signal to the entrance slave 1a or 1b. Further, the CPU 21 of the central controller 20 is a call / communication interface.
The first call path use command signal (call signal) is also sent to the called dwell unit terminal 30 via 23 and the call / communication line 2.

From the CPU 21 of the central controller 20 to the entrance slave unit
The first call path use command signal sent to 1a or 1b is input to the CPU 11 via the call / communication interface 12. The CPU 11 of the entrance slave is a TV / camera
13 is activated, and a control signal is sent to the relay control section 41 of the video signal switching device 40 via the switching device control interface 14 to close the contact. The video signal obtained by the television / camera 13 is sent to the video signal line 3 by closing the contact.

In the dwelling unit terminal 30, C of the central control unit 20
The call signal sent from the PU 21 via the call / communication line 2 is input to the CPU 31 via the call / communication interface 32. The CPU 31 sends an activation signal to the monitor / television 39 via the control unit 33 to activate the monitor / television 39.

By such a series of operations, the video signal obtained by the television / camera 13 is guided to the monitor / television 39 through the video signal switching device 40, the video signal line 3, and the branching device 5 to display an image. You can

[0013]

In such an intercom system for an apartment house, when one of the plurality of entrance slaves is talking to one dwell unit terminal 30, Since there is only one system of the video signal switch 40 and the video signal line 3, there is a problem that at the same time, the video signal cannot be sent to the dwelling unit terminal from another entrance slave. The present invention solves such a conventional problem, and at the same time, provides an excellent intercom system for multi-dwelling houses that can send video signals from two entrance slaves to two dwell units. It is intended to be provided.

[0014]

[Means for Solving the Problems] Central control unit, a plurality of shared entrance sub-units equipped with a TV / camera, a plurality of dwelling unit terminals equipped with a monitor / TV, the plurality of shared entrance sub-units and the above-mentioned each A video signal line having a number of systems smaller than the number of the slaves laid between the dwell unit terminals and each dwell unit terminal under the control of the central controller.
It is provided with a means for selectively connecting to one of the two.

[0015]

[Function] Since a plurality of systems of video signal lines are laid from the entrance slave equipped with the TV / camera to each residential unit terminal, when a calling operation is performed by any of the entrance slaves, the central control unit When calling the dwell unit terminal, the information signal of the vacant video signal line is transmitted, and in the dwell unit terminal, the vacant video signal line is selected and connected by the information signal, and the image of the front door is displayed on the monitor / TV. Project.

[0016]

EXAMPLE As shown in FIG. 1, a central control unit 20 and two or more entrance slaves 1a, 1b, ... Installed at a common entrance,
Attached to each dwelling unit terminal 30 equipped with a monitor / television 39 and a video signal receiving adapter 35 installed in each dwelling unit, two video signal switching devices 4a and 4b, and entrance slave units 1a, 1b ,. It is composed of video signal transmitting adapters 5a and 5b, and is connected by the call / communication lines 1 and 2 and the video signal lines 3 and 4 of two systems.

The central control unit 20 comprises a CPU 21 and two call / communication interfaces 22 and 23.
21 is connected to the call / communication lines 1 and 2 via two call / communication interfaces 22 and 23.

The entrance slaves 1a, 1b, ... Include a CPU 11, a call / communication interface 12, a television / camera 13,
A switching device control interface 14 and a video signal transmission adapter control interface 15 are provided respectively, and C
The PU 11 is connected to the call / communication line 1 via the call / communication interface 12, and the video signal output from the television / camera 13 is transmitted by the video signal transmitting adapters 5a, 5b,
Through the video signal switch 4a or 4b, and C
The first switching signal output from the PU 11 is transmitted via the switching device control interface 14 to the video signal transmitting adapter 5a,
The second switching signal is guided to the video signal switching devices 4a, 4b via the switching device control interface 14 by being guided to the video signal switching devices 5b ,.

The dwelling unit terminal 30 includes a CPU 31, a call / communication interface 32, a monitor / TV control unit 33, and a video signal receiving adapter 35.
Call / communication line 2 via the call / communication interface 32
The first control signal output from the CPU 31 is guided to the video signal receiving adapter 35 through the interface 34, and the second control signal is connected to the monitor
It is guided to the control unit 33 that controls the television 39.

The monitor / television 39 is connected to the video signal line 3 or 4 via the branching device 5 or 6.

Next, the operation of the intercom system of the embodiment thus constructed will be described.

In any of the entrance slaves 1a, 1b ...
When a visitor performs an operation of calling a specific dwell unit terminal 30, the CPU 11 of the child device sends a call signal to the call / communication line 1 via the call / communication interface 12. When this calling signal is input to the CPU 21 via the call / communication interface 22 of the central controller 20, the CPU 21 sends a first call path use command signal to the entrance slave that has performed the calling operation. .. Further, the CPU 21 of the central controller 20
The first call path use command signal (call signal) is also sent to the called dwell unit terminal 30 via the call / communication interface 23 and the call / communication line 2.

The first call path use command signal sent from the CPU 21 of the central control unit 20 to the entrance slave that has performed the calling operation is input to the CPU 11 through the call / communication interface 12 of the slave. It When the CPU 11 of the entrance slave receives the first call path use command signal, it does not perform the switching operation of the video signal sending adapters 5a, 5b, ... And activates the television / camera 13, and further switches. Control interface 14 and video signal transmission adapters 5a, 5
A control signal is sent to the relay control section RYa of the video signal switch 4a via the contact B of b, ..., And the contact 41 is closed. contact
By the circuit of 41, the video signal obtained by the TV camera 13 is
It is sent to the first video signal line 3.

In the residential unit terminal 30, C of the central controller 20
The first call path use command signal (call signal) sent from the PU 21 via the call / communication line 2 is input to the CPU 31 via the call / communication interface 32. The CPU 31 sends a start signal to the monitor / television 39 through the control unit 33,
Start the monitor / TV 39. When the CPU 31 receives the first call path use command signal, the CPU / TV 39 does not perform the switching operation of the video signal receiving adapter 35, and the monitor / television 39 passes through the branching device 5 and the contact B of the video signal receiving adapter 35. Connected to the first video signal line 3 and the video signal obtained by the television camera 13 can be displayed.

When the first entrance slave unit 1a and the specific dwelling unit terminal 30 are in a call and the first video signal line 3 is in use, the visitor can use another slave unit, for example, the second slave unit. Entrance door station 1b
When an operation to call another dwell unit terminal 30 is performed by
The CPU 11 of the entrance slave 1b sends a call signal to the call / communication line 1 via the call / communication interface 12. When this calling signal is input to the CPU 21 via the call / communication interface 22 of the central controller 20, the CPU 21
Sends a second speech path use command signal to the second entrance slave 1b. Further, the CPU 21 of the central controller 20
The second call path use command signal (call signal) is also sent to the called dwell unit terminal 30 via the call / communication interface 23 and the call / communication line 2.

The second call path use command signal sent from the CPU 21 of the central controller 20 to the second entrance slave 1b is sent to the CP via the call / communication interface 12 of the slave.
Input to U11. When the CPU 11 of the entrance slave receives the second call path use command signal, it performs the switching operation of the video signal sending adapter 5b to activate the TV / camera 13, and further, the switch control interface 14 and Video signal switching device via contact M of video signal sending adapter 5b
A control signal is sent to the relay control unit RYb of 4b to close the contact 42. The video signal obtained by the television camera 13 is sent to the second video signal line 4 by closing the contact 42.

At the other dwelling unit terminal 30 called, the second call path use command signal (call signal) sent from the CPU 21 of the central control unit 20 via the call / communication line 2
It is input to the CPU 31 via the communication interface 32.
The CPU 31 sends an activation signal to the monitor / television 39 via the control unit 33 to activate the monitor / television 39. CP
When the U31 receives the second call path use command signal, the U31 switches the video signal receiving adapter 35 to monitor and
The television 39 includes a branching device 6 and a video signal receiving adapter 35.
Is connected to the second video signal line 4 via the contact M of
The video signal obtained by the TV camera 13 of the entrance slave 1b can be displayed.

As described above, even when a video signal is being sent from one shared entrance slave unit to a dwelling unit terminal, another shared entrance slave unit simultaneously sends a video signal to another dwelling unit terminal. Can be sent out.

In the embodiment described above, the number of video signal lines and video switching devices is "2", but the number of video signal lines and video switching devices depends on the number of installed entrance slaves and the number of use. It should be set considering the frequency.

[0030]

As is clear from the description based on the above embodiments, according to the intercom system for a housing complex of the present invention, video signal lines of a plurality of systems are provided and the video signal lines are used through a communication path to be used. Is automatically selected, it is possible to simultaneously output video signals from a plurality of common entrance slaves to a plurality of dwelling unit terminals.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an intercom system for a housing complex of the present invention,

FIG. 2 is a block diagram showing an example of a conventional intercom system for a housing complex.

[Explanation of symbols]

 1, 2 Call / communication lines 3, 4 Video signal lines 5, 6 Divider 10 Shared entrance device 13 TV / camera 20 Central control unit 30 Housing unit terminal 35 Video signal receiving adapter 39 Monitor / TV 4a, 4b Video switching 5a, 5b Video signal transmission adapter

Claims (1)

[Claims] 1. A central control unit, a plurality of shared entrance sub-units equipped with a television / camera, a plurality of dwelling unit terminals equipped with a monitor / TV, a plurality of shared entrance sub-units and each of the dwelling unit terminals Means for connecting each of the dwelling unit terminals to one of the video signal lines under the control of the central control unit, the video signal lines having a number of systems smaller than the number of the slaves installed between them. The intercom system for multi-family housing, which is characterized by the provision of