JPS642277B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a television/intercom system for collective housing, and particularly to a collective entrance unit, a manager's room unit,
Calls, calls, and other controls between multiple living room units, as well as video transmission between the collective entrance camera and multiple living room TV monitors, are achieved through a small number of communication paths, video signal paths, and control signal paths, thereby saving wires. Involved in TV and intercom systems for apartment complexes that are becoming increasingly popular.

(Prior Art) Conventionally, this type of television intercom for apartment complexes has been known as a system as shown in FIG. First, the plurality of room units 5 each have an individual communication path for communication with the collective entrance unit 3, and are connected to one end of the communication control device 1. Furthermore, each room unit 5 has control signals for receiving a channel selection signal, unlocking an electric lock, calling a manager, emergency alarm, fire alarm, and gas leak alarm on the above-mentioned communication path. . In addition, 6 is an electric lock unlocking button, 7
8 indicates a manager's room call button, 8 indicates an emergency alarm activation button 9 indicates a fire detector, and 10 indicates a gas sensor. The call control device 1 also has a control signal path from the other end to the electric lock 4, the collective entrance device 3, and the manager's room device 2.
connected by a communication line. Further, the plurality of living room television monitors 20 are each connected to the video control device 22 with individual video signal paths so that they can receive video signals captured by the collective entrance camera 21.

Now, when there is a visitor, a channel selection signal indicating the room number is sent from the collective entrance machine 3 to the call control device 1. Then, a calling signal is sent from the call control device 1 to the call line of the corresponding station number, causing the room unit 5 to ring. At the same time, the video captured by the collective entrance camera 21 becomes a video signal and is amplified by a boost amplifier (not shown) built into the video control device 22, which is connected to each room individually. The video signal is received by the television monitor 20 in the other party's room through the selected video signal path. Also, when calling the room unit 5 from the manager's room unit 2, the collective entrance unit 3
Channel selection is performed in the same way as when calling from. Further, when opening/closing the electric lock 4 from the room unit 5, by pressing the electric lock release button 6, a signal is sent to the call control device 1 via each individual control signal path.

(Problem to be Solved by the Invention) However, this television intercom for apartment complexes individually arranges a control signal line and a call line from each of the plurality of room units 5 to the call control device 1, and also connects the plurality of room TVs. A video signal line, ie, a coaxial cable, had to be individually installed from each monitor 20 to the video control device 22. In other words, if there are n room units 5, it is necessary to wire n communication lines and coaxial cables. For this reason, wire saving cannot be realized, and there is a problem in that the number of wires must be increased even when the room unit 5 and the room television monitor 20 are added.

Furthermore, Japanese Patent Application Laid-open No. 53-34930 discloses that a control signal is obtained in which a television camera image signal, which is converted by a modulator into a signal of a CATV specific channel or an arbitrary empty channel, is superimposed on a telephone line that has been line-selected by an exchange. A visitor confirmation device has been disclosed that is configured to transmit information only to a monitor television receiver in a subscriber's home operated by the system to confirm the presence of a visitor.

However, this visitor identification device
It is a technical configuration that simply combines CATV equipment, telephones, and exchanges with television cameras and monitor television receivers, but this does not allow for wire savings, and it is difficult to increase the number of subscriber telephones and monitor television receivers. However, there is a drawback that the number of wiring lines must be increased.

(Purpose of the Invention) The present invention has been made to solve the above-mentioned difficulties, and is capable of controlling a collective entrance machine, a manager's room machine, calling, talking, and other controls between multiple room machines, and a collective entrance camera. The present invention provides a television intercom system for apartment complexes configured to achieve video transmission between multiple living room television monitors using a small number of communication paths, video signal paths, and control signal paths to save wires. That is.

(Means for Solving the Problems) In order to achieve the above object, the television intercom system for apartment complexes of the present invention includes a plurality of living room units and living room television monitors assigned with living room numbers, and any of the living room units and the living room television intercom system. a collective entrance unit that designates a living room television monitor; a manager's room machine that can communicate with the living room unit and the collective entrance machine and receive security data from the living room unit;
It has a collective entrance camera that transmits images to the living room TV monitor, and a control device having a control function such as receiving a call from the collective entrance machine and selecting a channel on the living room unit and the living room TV monitor, A floor terminal with a floor terminal number assigned to each floor is installed between the room unit, the room television monitor, and the control device, and the floor terminal relays a control signal line, a speech line, and a video signal line. , a room unit that receives the floor terminal number and the room number transmitted from the collective entrance machine via the control device, and corresponds to the designated room number on the floor when the numbers match the own floor terminal number; and a plurality of call floor terminals and video floor terminals, each of which has a living room TV monitor active, and which transmits and receives calls and security data among the collective entrance machine, the living room machine, and the manager's room machine.

(Example) Hereinafter, the present invention will be described with reference to the drawings regarding preferred examples thereof.

In FIG. 2, the television for apartment complexes of the present invention
The intercom system includes a plurality of room machines 5 assigned with room numbers and a room TV monitor 20.
and any room unit 5 and room TV monitor 2
0, and a manager's room unit 2 that can communicate with the room unit 5 and the collective entrance machine 3 and receive security data such as emergency alarms, fire alarms, and gas alarms from the room unit 5. , a collective entrance camera 21 that transmits images to the living room TV monitor 20
Then, in response to a call from the collective entrance machine 3, the room machine 5
It also has a telephone control device 1 and a video control device 22, which have control functions such as selecting a channel on a TV monitor 20 in the living room.

An electric lock 4 is connected to the call control device 1. The room unit 5 includes an electric lock release button 6, a manager's room call button 7, an emergency alarm activation button 8 as a security data sensor, a fire detector 9,
It has a gas sensor 10.

In addition, the room unit 5 and the room TV monitor 20
A floor terminal with a floor terminal number assigned to each floor is installed between the control device 1 and the control device 1, 22. This floor terminal relays the control signal path, speech path, and video signal path, receives the floor terminal number and room number transmitted from the collective entrance unit 3 via the control device 1, and matches the own floor terminal number. When this occurs, the room unit 5 and room TV monitor 20 corresponding to the designated room number on the floor are activated, and calls and security data are exchanged between the collective entrance unit 3, room unit 5, and manager room unit 2. multiple call floor terminals 11 and video floor terminals 23
and has.

In detail, this call floor terminal 11
is assigned a floor terminal number and is assigned a floor terminal number.
and the communication control device 1 to establish a control signal path and a communication path, and the channel is selected by the communication control device 1, and subsequently the room unit itself is also connected based on the designated room number. It has functions such as making 5 selections. The room unit 5 uses the floor terminal number and the room number as the address number, and the control device 1,
22 and sends and receives phone calls and security data.

Furthermore, when the communication path described above is established, the video floor terminal 23 is placed between the living room TV monitor 20 and the video control device 22 to establish a video signal path as a video signal line. , has functions such as activating the living room TV monitor 20 based on the living room number.

Next, the operation of the television/intercom system for apartment complexes constructed as described above will be explained in detail with reference to FIGS. 3 and 4. As an example of the operation, a description will be given focusing on the transmission/reception relationship of call signals.

To call the room unit 5 from the collective entrance machine 3 and start a call, the visitor specifies the room number on the collective entrance machine 3. floor terminal 11
A channel selection signal consisting of the floor terminal number and room number as shown in FIGS. 3A and 3B is transmitted on the control signal path. The talking floor terminal 11 that received this channel selection signal judges whether the number matches its own floor terminal number, and if it matches, it validates the channel selection signal and transmits the same channel selection signal to the call control device 1. and wait for a command signal. Furthermore, the call control device 1 confirms that the channel selection signal has been sent based on the match between the returned signal and the transmitted signal, and
Sends the next command signal. After receiving the command signal, the call floor terminal 11 sends the command signal back to the call control device 1, and also performs call control on the room unit 5 corresponding to the specified room number on the floor to call the room. Make machine 5 active. The call control device 1 that receives the return confirms the completion of the transmission and waits for a response from the room unit 5. Next, when the room unit 5 responds to the call, the call floor terminal 11 first sends the call control device 1 to the fourth
A channel selection signal as shown in FIGS. A and 4B is sent out, and a return signal from the call control device 1 is confirmed. Similarly, if a command signal is sent and returned, a communication path is opened. Further, the call control device 1 similarly opens a call path to the collective entrance machine 3. By transmitting and receiving the channel selection signal and command signal between the call control device 1 and the call floor terminal 11 as described above, it becomes possible to transmit and control the respective information. As a result, room unit 5 and collective entrance unit 3
It is possible to talk with.

In this case, when opening/closing the electric lock 4 from the room unit 5, by pressing the electric lock unlock button 6, a signal is sent to the communication control device 1 via the control signal path, and the electric lock 4 is is unlocked.

Also, when calling the room unit 5 from the manager's room unit 2, the same channel selection as when calling from the collective entrance unit 3 is performed.

When the room unit 5 calls the manager's room unit 2, by pressing the manager's room call button 7, a call signal is sent from the call floor terminal 11 to the call control device along with the floor terminal number and room number as the calling address number. 1 and can talk to the manager's room unit 2. In addition, when the emergency alarm activation button 8 is pressed and the fire detector 9 and gas detector 10 are activated, security data is sent from the floor terminal 11 for calls as well as the floor terminal number and room number as the calling address number. The information is sent to the control device 1 and notified to the manager's room unit 2.

Next, the operation of transmitting a video signal will be explained. When a communication path is established between the collective entrance unit 3 and the room unit 5, as shown in FIG.
A video signal path is established between the two. At this time, the image of the visitors captured by the collective entrance camera 21 is amplified as a video signal by the boost amplifier 24 built in the video control device 22, and then enters the branch amplifier 25 built in the video floor terminal 23. .
Further, the video signal is amplified by the selected video signal amplifier 26, and the living room television monitor 20 is activated to display the image of the visitor. In addition,
Each of the plurality of video floor terminals 23 is connected by one coaxial cable (main line) from the video control device 22. A terminal load 27 having a value matching the characteristic impedance of the coaxial cable is connected to the terminal end thereof. Also,
Input impedance Z ₁ of each branch amplifier 25...
…Zn has an impedance that combines all of them.
It must be set so high that the terminal load 27 can be ignored. In this way, video signals can be transmitted without generating standing waves that become ghosts. Alternatively, the same effect can be obtained by inserting a relay contact 28 in front of the branch amplifier 25, turning it off during standby, and then connecting only the branch amplifier 25 in the corresponding video floor terminal 23 to the main line when a channel is selected. It will be done.

Taking this into consideration, the breakdown of the signals that actually flow through the wiring is as follows.

1 Signal sent from the collective entrance (1) Living room call control signal (2) Manager's room call control signal (3) Call signal (4) Video signal 2 Signal sent from the living room to the collective entrance (1) Handset ON control signal (2) Handset OFF control signal (3) Call signal (4) Electric lock opening/closing control signal 3 Signal sent from the resident room to the manager's room (1) Manager's room call control signal (2) Emergency alarm control signal (3) Sensor operation signal (gas , fire, backup) (4) Call signal For this reason, according to the television intercom system for apartment complexes of the present invention, a plurality of floor terminals 11 for calls, a video control device 22, and a floor terminal for video 23 are provided. , control signal path 4
Book, 2 communication paths, 1 video signal path (coaxial cable)
Wiring can be done using only real wiring, and therefore the number of wires between the floor terminal, the telephone control device 1, and the video control device 22 can be reduced.

In the above embodiments, the case where both the room unit and the room TV monitor are used at the same time has been described, but it is of course possible to use only the room TV monitor.

(Effects of the Invention) As is clear from the above embodiments, the television intercom system for apartment complexes of the present invention includes a plurality of living room units and living room TV monitors assigned with living room numbers, and any of the living room units. and a collective entrance device that specifies the television monitor in the living room;
A call can be made to the room unit and the collective entrance unit,
and a manager's room unit that receives security data from the room unit; a collective entrance camera that transmits images to the living room TV monitor; A control device having a control function such as channel selection, and a floor terminal having a floor terminal number assigned to each floor is installed between the room unit and the room TV monitor and the control device, and the floor terminal is provided with a floor terminal number for each floor. The floor terminal relays the control signal path, the speech path, and the video signal path, receives the floor terminal number and the room number transmitted from the collective entrance machine via the control device, and receives the floor terminal number and room number of its own. When a match occurs, the room unit and TV monitor corresponding to the specified room number on the floor are activated,
Since it has a plurality of call floor terminals and video floor terminals that transmit and receive calls and security data between the collective entrance machine, the room unit, and the manager's room machine, a call control device and a video control device are provided. This reduces the number of communication paths, video signal paths, and control signal paths laid between the floor terminals and reduces the number of wires, and also eliminates the need for additional wiring when adding room units and room TV monitors. This has the effect of improving maintainability.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a conventional TV/intercom system for apartment complexes, FIG. 2 is a block diagram of a TV/intercom system for apartment complexes according to the present invention, and FIG.
Figure A is a time chart showing the transmission and reception status of signals when transmitting from the call control device to the call floor terminal, and Figure 3B is a diagram showing an example of the format of the signal shown in Figure 3A. Figure 4A
4 is a time chart showing the transmission and reception status of signals when transmitting from the floor terminal for communication to the communication control device, FIG. 4B is a diagram showing an example of the signal format shown in FIG. 3A, and FIG. The figure is a block diagram showing the video system of the television intercom system for apartment complexes of the present invention. 1...Telephone control device, 2...Manager's room machine, 3
...Collection entrance machine, 5... Room unit, 11... Floor terminal for calls, 20... Living room TV monitor, 21... Collective entrance camera, 22... Video control device, 23... Video floor terminal.

Claims (1)

[Claims] 1. A plurality of room units and room TV monitors assigned room numbers, and a collective entrance machine that specifies any of the room machines and TV monitors;
A call can be made to the room unit and the collective entrance unit,
and a manager's room unit that receives security data from the room unit; a collective entrance camera that transmits images to the living room TV monitor; A control device having a control function such as channel selection, and a floor terminal having a floor terminal number assigned to each floor is installed between the room unit and the room TV monitor and the control device, and the floor terminal is provided with a floor terminal number for each floor. The floor terminal relays the control signal path, the speech path, and the video signal path, receives the floor terminal number and the room number transmitted from the collective entrance machine via the control device, and receives the floor terminal number and room number of its own. When a match occurs, the room unit and TV monitor corresponding to the specified room number on the floor are activated,
A television intercom for an apartment complex, characterized by having a plurality of call floor terminals and video floor terminals that transmit and receive calls and security data among the collective entrance machine, the living room machine, and the manager's room machine. system.