JPH0337344B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention enables calls, conversations, and other controls between a collective entrance unit and a plurality of room units to be achieved using a small number of communication lines and control signal lines, thereby saving wires. The present invention relates to an intercom system for an apartment complex that is space-saving and that allows a branch adapter to be built into a room entrance unit.

[Technical Background of the Invention] Conventionally, an intercom system for apartment complexes as shown in FIG. 3 has been known. This type of intercom system 10 includes a control device 1, a manager's room machine 3, a collective entrance machine 2, a plurality of room machines 6, a room entrance machine 5, and a plurality of floor terminals 4. Here, the plurality of floor terminals 4 are placed between the room unit 6 and the control device 1 to interrupt the control signal path and the communication path, and are selected by the control device 1 and are subsequently designated by the control device 1. It functions as a sub-exchange, selecting a channel for the room unit 6 based on the room number assigned.

Further, as an example of the operation, the relationship between signal transmission and reception will be mainly explained. For example, from collective entrance machine 2 to room machine 6
In order to call and start a conversation, it is necessary for the visitor to enter the room number on the collective entrance machine 2. The room number is converted by the control device 1 into the number of the floor terminal 4 and the room number, and a channel selection signal is sent to the control signal line. Next, the floor terminal 4 that received the channel selection signal judges whether or not it matches its own floor terminal number. If it matches, the channel selection number is considered valid and the same signal is sent to the control device 1. Send it back and wait for a command signal. Further, the control device 1 confirms that the channel selection signal has been sent based on the match between the returned signal and the sent signal, and sends out the next command signal. After receiving the command signal, the floor terminal 4 sends the signal back to the control device 1, and also performs call control on the corresponding room unit 6. Upon receiving the return, the control device 1 confirms the completion of the transmission and waits for a response from the room unit 6. Next, when the room unit 6 responds to the call, the floor terminal 4 first sends a channel selection signal to the control device 1 and confirms the return from the control device 1. If the command signal is sent and returned in the same manner, a communication path is formed. The control device 1 also forms a communication path to the collective entrance device 2 in the same manner. By transmitting and receiving the channel selection signal and command signal between the control device 1 and the floor terminal 4 as described above, it is possible to transmit and control the respective information. As a result, communication between the room unit 6 and the collective entrance unit 2 becomes possible.

[Problems in the background technology] However, in this type of intercom system for apartment complexes, multiple room units are connected to one floor terminal, so the configuration of the floor terminal becomes complicated and the shape becomes large. The problem is that a dedicated installation location must be secured.

[Object of the Invention] The present invention has been made in view of the above-mentioned problems. Instead of using a floor terminal, a branch adapter that can be built into a room entrance unit is used to reduce the space factor and wiring man-hours for apartment buildings. The purpose is to provide an intercom system.

[Summary of the Invention] In order to achieve the above object, the intercom system for apartment complexes of the present invention includes a plurality of room units, a collective entrance machine that can specify any room number to call the room units, and the apartment complex. A control device that transmits a room number code designated by the entrance machine and a command code indicating that the call command is from the collective entrance machine, and a room number code and own number code transmitted from the control device. a plurality of branch adapters that form a communication path between the collective entrance unit and the living room unit when the numbers match, and a plurality of living room entrance machines that are connected to the living room unit and have the branch adapters built therein. It is.

[Embodiments of the Invention] Preferred embodiments of the present invention will be described in detail below with reference to FIG. Intercom system for apartment complexes 2
0 is a branch adapter 18' built in the manager's room unit 13, the collective entrance unit 12, the control device 11, the room unit 16, the room entrance unit 18, and the room entrance unit 18 (Fig. 2).
It is composed of Room entrance machine 18 is main line 17
It is connected to the control device 11 by.

The living room machine 16 is connected to the living room entrance machine 18. The collective entrance machine 12 allows the user to specify an arbitrary room number in order to call the room machine 16. The control device 11 transmits the room number code designated by the collective entrance machine 12 and a command code indicating that the call command is from the collective entrance machine 12. The branch adapter 18' (Fig. 2) connects the collective entrance unit 12 and the room unit 1 when the room number code transmitted from the control device 11 and the own number code match.
6 to form a communication path. The living room entrance machine 18 is connected to the living room machine 16 and has the branch adapter 18' built therein.

The internal structure of the entrance unit 18 is as shown in FIG. Here, the data signal receiving circuit 21
is connected to the main line 17 at one end and to the CPU circuit 26 at the other end, and receives data from the main line. The data signal transmitting circuit 22 is connected to the main line at one end and to the CPU circuit 26 at the other end, and transmits data to the control device 11 (FIG. 1). The communication path opening/closing circuit 23 has one end connected to the main line and the other end connected to the CPU circuit 26.
2 (FIG. 1) and the room unit 16 (FIG. 1). Communication path opening/closing circuit 24
One end is connected to the main line and the other end is connected to the CPU circuit 26, which connects the manager's room unit 13 (Fig. 1) and the resident's room unit 16.
(Fig. 1).
25 is a power supply circuit. The CPU circuit 26 controls each circuit. The number setting circuit 27 is
One end is connected to the CPU circuit 26 and the other end is connected to the security signal input circuit 28. The security signal input circuit 28 has one end connected to the CPU circuit 2.
6, the other end is connected to the room unit 16 (FIG. 1). The call response detection circuit 29 is connected at one end to the CPU circuit 26 and the communication path opening/closing circuit 23, and at the other end to the room unit 16 (FIG. 1). The paging circuit and paging detection circuit 30 has one end connected to the CPU circuit 26 and the communication path opening/closing circuit 24, and the other end connected to the room unit 16 (the first
(Figure). The branch adapter 18' is constructed from the circuit described above. 31 is a room door phone circuit.

Next, the operation of the intercom system for apartment complexes of the present invention will be explained based on FIGS. 1 and 2.

First, when attempting to call the room unit 16 from the collective entrance machine 12 to make a call, the user designates the room number of the desired room from the collective entrance machine 12 and calls it. Then, the control device 11 transmits the room number code designated by the collective entrance machine 12 to the room entrance machine 18 through the main line 17. The branch adapter 18' of the room entrance unit 18 receives the room number code at the data signal receiving circuit 21 and sends it to the CPU circuit 26.
The CPU circuit 26 compares the room number code and its own number, and if they match, the CPU circuit 26 determines that the room number code is valid and sends the same signal to the data signal transmission circuit 22.
The controller 11 is sent back via the main line 17 and waits for a command code. When the control device 11 confirms that the room number code has been sent based on the match between the returned signal and the sent signal, it then transmits a command code indicating that the call is from the collective entrance device 12 to the room entrance device 18. When the branch adapter 18' of the entrance unit 18 receives the command code, the CPU circuit 26 activates the call response detection circuit 29.
Calling control of the room unit 16 is performed via. When the called room unit 16 picks up the handset (not shown) to answer, the call response detection circuit 29 detects that a response has been received, and the signal is
It is input to the CPU circuit 26. When the CPU circuit 26 sends a command code indicating that it has responded, it first sends its own number code to the control device 11 as described above, and after receiving the same signal from the control device 11, the CPU circuit 26 sends the command code indicating that it has responded. The code is transmitted from the data signal transmission circuit 22 to the control device 11. As a result, a communication path is formed between the collective entrance unit 12 and the room unit 16 via the communication path opening/closing circuit 24.

When the handset (not shown) of the room unit 16 is returned after the call ends, the end of the call is detected by the call response detection circuit 29, and the signal is input to the CPU circuit 26, and the caller's own number is displayed in the same way as when answering. After sending and receiving the number code, the control device 11 sends a command code indicating the end of the call.
, and the communication path between the collective entrance unit 12 and the room unit 16 is cut off.

Here, we have explained the case where a room unit is called from the collective entrance machine to make a call, but also when the room machine is called from the manager's room machine to make a call, the call response detection circuit 29 calls the room machine from the collective entrance machine to the manager's room machine. The circuit and call detection circuit 30 include a communication path opening/closing circuit 23.
There is no difference in the operation of the intercom system, just that it is compatible with the communication path 24.

[Effects of the Invention] As is clear from the above embodiments, according to the intercom system for apartment complexes of the present invention, when you specify the room number of the room unit you want to call using the collective entrance machine, the branch Since the adapter is configured to form a communication path between the collective entrance unit and the room unit, the space factor and wiring man-hours can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of an intercom system for apartment complexes according to the present invention, Fig. 2 is a block diagram of a branch adapter built in a room entrance unit constituting the intercom system for apartment complexes according to the invention, and Fig. 3 is a block diagram of a conventional intercom system for apartment complexes. FIG. 1 is a block diagram of an intercom system for an apartment complex. 11...Control device, 12...Collection entrance machine, 16
...Room unit, 18...Room entrance unit, 18'...Branch adapter, 20...Interphone system for apartment complexes.

Claims (1)

[Claims] 1 A plurality of room units, a collective entrance machine that can specify any room number to call the said living room machine, a room number code specified by the said collective entrance machine, and a call command from said collective entrance machine. a control device that transmits a command code indicated by the control device; and a plurality of branches that form a communication path between the collective entrance unit and the room unit when the room number code and the home number code transmitted from the control device match. 1. An intercom system for an apartment complex, comprising: an adapter; and a plurality of doorway units connected to the room unit and incorporating the branch adapter.