JPS6253556A - Interphone system for multiple dwelling house - Google Patents

Abstract

PURPOSE:To decrease space factors and wiring man-hours by allowing a branch adaptor at a living room gate door set to form a channel between a multiple gate door set and the living room set when the multiple gate door set designates a room number of a living room set desired to be called. CONSTITUTION:The branch adaptor 18' of the living room gate door set 18 uses a reception circuit 21 to receive a room number code, sends it to a CPU circuit 26, compares a room number code with the own number and when they are coincident, the same signal is returned from a transmission circuit 22 to a controller 11 to await a command code. When the controller 11 confirms the transmission of a room number code, a command code representing a call from the multiple gate door set 12 is sent to a living room gate door set 18. When the branch adaptor 18' of the living room gate door set 18 receives the command code, a CPU circuit 26 applies call control of the living room set 16 via a call reply detection circuit 29.

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, resulting in line savings. The present invention relates to an intercom system for an apartment complex that is space-saving and can incorporate a one-branch adapter into a living 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, relay 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 that performs channel selection for the room unit 6 based on the room number.

Further, as an example of the operation, the relationship between signal transmission and reception will be mainly explained. For example, in order to call the room unit 6 from the collective entrance MM&2 and start a conversation, the visitor needs to place the room number at the collective entrance 8!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, and if it matches, the channel selection signal is considered valid and the same signal is transmitted to the control device @1t.
;Send back and wait for command signal. Further, the control device 1 confirms that the channel selection signal has been sent by checking that the returned signal matches 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. The control device 5!1 that receives the return 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 becomes 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 with the background technology] However, in this type of intercom system for apartment complexes, multiple room units are connected to one floor terminal, which makes the configuration of the floor terminal complex and the size of the floor terminal large. The problem is that a dedicated installation location must be secured.

[Purpose of the invention The present invention has been made in view of the above-mentioned problems.

To provide an intercom system for an apartment complex that uses a branch adapter that can be built into a room entrance unit instead of using a floor terminal and requires a small space factor and a small wiring man-hour.

[Summary of the Invention] In order to achieve the above objects, the intercom system for apartment complexes of the present invention includes a plurality of room units and a collective entrance unit that can specify any room number to call the room units. a control device that transmits a room number code specified by the collective entrance machine and a command code indicating that the call command is from the collective entrance machine; a plurality of branch adapters that form a communication path between the collective entrance unit and the room unit when the number codes match; and a plurality of branch adapters that are connected to the room unit and have the branch adapter built-in. It is equipped with

[Embodiments of the Invention] Preferred embodiments of the present invention will be described in detail below with reference to FIG. The intercom system 20 for apartment complexes includes a manager's room unit 13. Collective entrance machine 12. System 9I! Device 11, room unit]
6. Room entrance machine 18. It consists of a branch adapter 18' (FIG. 2) built into the room entrance unit 18. The room entrance machine 18 is connected to the control device 11 by a main line 17.

The living room machine 16 is connected to the living room entrance machine 18.

The collective entrance machine 12 allows the user to specify any room number in order to call the room machine 16. The control device 11 is the room number code specified by the collective entrance machine 12 and the collective entrance machine 1.
A command code indicating that the command is a call command from 2 is transmitted.

The branch adapter 18' (Fig. 2) forms a communication path between the collective entrance unit 12 and the room unit 16 when the room number code transmitted from the control device 11 and the own number code match. . 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 has one end connected to the main line 1.
7, the other end is connected to the CPU circuit 26, and receives data from the main line. The data signal transmission circuit 22 has one end connected to the main line.

The other end is connected to the CPU circuit 26 and 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, and opens and closes the communication path between the collective entrance unit 12 (Fig. 1) and the room unit 16 (Fig. 1). It is. The communication path opening/closing circuit 24 has one end connected to the main line and the other end connected to the CPU.
Reference numeral 625, which is connected to the circuit 26 and opens and closes the communication path between the manager's room unit 13 (FIG. 1) and the room unit 16 (FIG. 1), is a power supply circuit. The CPU circuit 26 controls each circuit. The number setting circuit 27 has one end connected to the CPU circuit 26 and the other end connected to the security signal input circuit 28. The security signal input circuit 28 has one end connected to the CPU circuit 26 and the other end connected to the room unit]6
(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 is connected at one end to the CPU circuit 26 and the communication path opening/closing circuit 24, and at the other end to the room unit 16 (FIG. 1). 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, if you want to call the room unit (6) from the collective entrance machine 12, specify the room number of the desired room from the collective entrance machine I2 and call it.Then, the control device 11 12 is transmitted to the room entrance unit 18 through the main line I7.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 C1''U circuit 26. send.

The C11U circuit 26 compares the room number code and its own number.

If they match, the room number code is determined to be valid, and the same signal is sent back to the control device 11 from the data (W number transmission circuit 22 through the main line 17) and a command code is awaited.

Control device! ! When the tll 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. Living room entrance machine 18
When the branch adapter 18' receives the command code, the CPU circuit 26 controls the calling of the room unit 16 via the calling response detection circuit 29. When the called room unit 16 picks up the handset (not shown) to answer, the call response detection circuit 29 detects that there is a response, and the signal is inputted to the CPU circuit 26 . C.P.
The U circuit 26 sends out a command code indicating that it has responded.

As described above, first the own number code is sent to the control device 11, and after receiving the same signal from the control device 11, the command code is sent from the data signal transmission circuit 22 to the control device 11. As a result, communication path opening/closing circuit 2
4, a communication path is formed between the collective entrance unit 12 and the room unit 16.

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, the signal is input to the CPU circuit 26, and after transmitting and receiving the own number code in the same way as when responding, a command code indicating the end of the call is sent to the control device 11. and cuts off the communication path between the collective entrance unit 12 and the room unit 16.

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. circuit and call detection circuit 3o,
There is no difference in the operation of the intercom system simply by replacing the communication path opening/closing circuit 23 with the communication path opening/closing circuit 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 the room number of the room unit to be called is specified using the collective entrance unit.

Since the configuration is such that a communication path is formed between the collective entrance unit and the room unit by a branch adapter built into the room entrance 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 living 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... Living room unit 18... Living room entrance machine 18'... Branch adapter 20... ... Intercom system agent for apartment complexes Patent attorney Moritani -O Figure 1 Figure 2

Claims (1)

[Claims] A plurality of room machines, a collective entrance machine that can specify an arbitrary room number to call the said living room machine, a room number code specified by the collective entrance machine, and an indication that the call command is from the collective entrance machine. a control device that transmits a command code; and a plurality of branch adapters that form a communication path between the collective entrance unit and the room unit when the room number code and own number code transmitted from the control device match. and a plurality of living room entrance machines connected to the living room unit and incorporating the branch adapter.