JPH11308349A - Interphone system, interphone master unit and interphone sub master unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively perform calling operation by preferentially sounding extension ring back tones only from an interphone master unit for a prescribed time when a call is received from a sub master unit, to which a local calling function is preset, by the master unit and calling the other sub master unit connected to the master unit when there is no response within that prescribed time. SOLUTION: When a user operates a call button C1, a master unit A sounds ring back tones for the prescribed time. During that operation, it is judged whether there is a response through the operation of a speech switch b1 or not. When there is any response, ring back tones are stopped but when there is not response, calling signals are sent to all sub master units A' and A" connected to the master unit A and ring back tones are simultaneously sounded. When the user operates a call button C2, the sub master unit A' sounds ring back tones for the prescribed time. When a response is returned by operating the speech switch b1 of the sub master unit A' during the operation, ringing is stopped but when there is no response within that prescribed time, ring back tones are simultaneously sent from all the other sub master units A' and A" while including the master unit A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intercom system and an intercom master unit and a sub master unit constituting the same.

[0002]

2. Description of the Related Art Recently, a multi-station type TV intercom system has been developed and has been widely used in two-family houses and the like. FIG. 7 shows a recent television intercom system. In the system shown in FIG. 7, the intercom master unit A installed in the room of the parent household has two doorphone slave units B (# 1) installed at the front doors of the parent and the child.
(# 2) is connected in parallel via the signal lines L1 and L1, and the intercom secondary master unit A '(# 1), (# 3)
Are connected in parallel via a signal line L2, and an interphone sub-master A '(# 2) is further connected to the interphone sub-master A'(# 1) via a signal line L2 to The intercom sub master units A '(# 4) and (# 4) are further serially connected to the unit A'(# 3) via a signal line L2. C1 and C2 are call buttons additionally connected to the master unit A and the subsidiary master units A '(# 1) to (# 4).

Here, two doorphone slave units B (# 1),
(# 2) has call buttons b4 and b5 and television cameras c and c, and the intercom master unit A and the intercom assistant master unit A '(# 1) to (# 4) correspond to the monitor television t.
v, a call switch b1, two extension call buttons b2 and b3 divided into groups A and B described later, and a monitor switch b5.

In such a system, if there is a call from any of the intercom slaves B, both the base unit A and the sub-base unit A 'make ringing sounds, so that the base unit A and the sub-base unit A' If one of the telephone switches b1 is operated and answered, hands-free operation can be performed while visually confirming the appearance of the visitor displayed on the monitor TV tv of each of the responding parent device A and sub-parent device A '. (Intercom call function), and the main unit A and the sub-master unit A 'can also call each other's extension and call (extension call function). In the latter case, if a call is made by operating the extension call buttons b2 and b3 from one of the master unit A and the slave unit A ', the called slave unit A' or master unit A is called.
In this case, since the extension ringing tone sounds, if the call switch b1 is operated in response to the call, a hands-free call can be made on both the calling side and the called side.

[0005] However, in such a multi-station type intercom system, calls from the two intercom units B and extension calls by the base unit A and the sub-base unit A 'are set in advance by A,
It is also possible to divide the group into groups B and use them in a mutually regulated manner, so that the parent and child households can communicate with each other and can be used independently to protect privacy. It has become.

[0006] Therefore, one example of its use will be described.
In response to a call from the two doorphone handsets B (# 1) and (# 2), any one of the master unit A and the subsidiary master unit A 'in the A group and the B group can answer and talk. For the call, each of the A group and the B group can be used independently, so that the master unit A and the auxiliary master unit A '
By operating the extension call A button b2 provided in the group A, only the extension calls to the master unit A and the subsidiary master unit A 'belonging to the group A become valid, and by operating the extension call B button b3, the Only the extension call to the master unit A 'is valid, and when the A group and the B group are to be called simultaneously at the same time, the extension call A and the extension call B buttons b2 and b3 can be simultaneously operated.

[0007] Recently, as shown in FIG. 7, the main unit A and the auxiliary unit A 'are provided with call call buttons C1 and C2.
In addition, an additional speaker (not shown) can be additionally connected as an external device. Even if the user is away from the master unit A and the auxiliary master unit A ′, any one of the call call buttons C1 and C1 By operating C2, another sub-base unit A 'or base unit A can be called, or even in a place or room away from base unit A or sub-base unit A', the sound of the additional speaker or the light emission can be used. The product has been developed with convenience and ease of use in mind.

[0008]

However, in such an intercom system, extension calls to the parent device and the sub-parent device can be restricted for each group divided in advance, but the parent call belonging to each group can be restricted. The machine and the secondary master sound all at once. Therefore, if the sick person or elderly caregiver frequently uses, even if it is known that the person to be called is in the room where the master unit is installed, the same applies to the sub master unit belonging to that group. Since the sound rings
Even for people who have nothing to do with a call, the ringing tone sounds each time an extension is called, which sometimes makes them feel noisy. The present invention has been proposed in view of the above circumstances, and provides a local priority call mode for an extension call button of a sub master unit or an extension call by a call call button, thereby providing a sub master unit or a call call button. Even if paging operation is performed, only the base unit is preferentially called for a predetermined time, and if there is no response from the base unit during that time, an extension call from another sub-base unit etc. in the system It is an object of the present invention to provide an intercom system having a new function of executing the intercom, and an intercom master and an interphone submaster constituting the intercom system.

[0009]

In order to achieve the above object, in the intercom system according to the first aspect, the intercom master unit receives a call from an intercom sub master unit in which a local calling function is set in advance. During the predetermined time until the call is answered, only the base unit gives priority to the extension ringing tone, and if there is no response within the predetermined time, the other interphone sub-base unit connected to the base unit Is configured to perform a call operation to the.

[0010] Here, when a multi-site intercom system is used, if there is no response to the priority call of the master unit, the local call is performed only in the group to which the sub master unit belongs. May be performed, or the entire system including the other groups may be simultaneously called. Claim 2
In the intercom system described in the intercom system connected to a plurality of intercom sub-master unit to the intercom master unit connected to the intercom slave unit,
A call call button can be additionally connected to the intercom master and the interphone sub-master, and the interphone master can be set to a local priority calling function for the call call button. Unlike the first aspect, the local call function can be set for the call button. However, the base unit can specify the call button in the system and set the local call. The call call button may be individually designated for each of the base unit and the sub-base unit according to the purpose of use of the system, and the buttons connected to the base unit and the sub-base unit may be called Call 1, Call 2, etc. May be specified separately. Since the call call button can be installed at a location remote from the secondary master, it is particularly useful when used to call a toilet, a bathroom, a sick person or a caregiver.

[0011] Claims 3 and 4 propose an intercom master unit, and claim 3 comprises a function setting means for designating a local priority call by designating an interphone sub master unit. In claim 4, an external device connection terminal for additionally connecting a call call button and an input / output device such as an additional speaker is provided, so that the local call priority can be set for the call call button. ing. Claim 5,
6 proposes an intercom secondary master unit, and in claim 5, comprises a function setting means for setting a local priority call. According to the present invention, a call call button and an external device connection terminal for additionally connecting an input / output device such as an additional speaker are provided so that the local call can be set for the call call button. ing.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 shows an example of the configuration of the intercom system of the present invention. here,
An intercom system in a two-family house is shown, in which two intercom slave units B (# 1) and (# 2) are connected in parallel to signal lines L1 and L1 to an intercom master unit A installed in a parent household. In addition, the intercom sub master units A '(# 1) and (# 2) are connected in parallel via a signal line L2. Then, the intercom secondary master unit A '(#
1) includes an intercom secondary master unit A ″ via a signal line L2.
(# 1) and (# 2) are serially connected, and intercom sub-master unit A "(# 3) and (# 4) are connected to intercom sub-master unit A '(# 3) via signal line L2. Here, the interphone master unit A and the sub master unit A ′ have a liquid crystal panel P serving as a monitor television, and the interphone sub master unit A ″ does not have a monitor television, Only free calls are possible. Further, a human body detection sensor S is connected to the intercom master unit A, and an extension speaker D and call calling buttons C1 and C2 are connected to the master unit A and the sub master unit A 'as external devices. I have. Here, in addition to the configuration of outputting a ringing sound, the additional speaker D may be provided with a flash lamp so as to light or flash at the time of calling. In the latter case, the location of a loud noise or a ringing sound may be used. A place that is difficult to hear or a person with poor hearing can easily recognize the call. The call buttons C1 and C2 do not have a call function, but can be installed at a location away from the sub-master unit, so they can be installed in toilets, bathrooms, rooms where sick or elderly people needing emergency calls, etc. it can.

Further, in such an intercom system, if the human body detection sensor S detects the presence of a person near the entrance where the door phone handset B is installed, (the human body detection sensor S does not detect the passing person, The main unit A drives the camera c of the intercom slave B, so that the photographed image is displayed on the liquid crystal panel P.
, And the sound can be output and monitored from the intercom B at the same time, which is excellent in crime prevention.

In such a configuration, if there is a call from any of the intercom slaves B, the master unit A, the auxiliary master unit A ',
A "and a ringing tone sounds from the additional speaker D connected to the master unit A and the subsidiary master unit A ', and the call button b1 is pressed on any of the master unit A, the subsidiary master unit A' and A". If there is a response by operating, a hands-free call can be made. At this time, the responding parent device A and sub-parent device A 'display the image of the visitor captured by the camera c of the door phone slave B on the liquid crystal panel. P
, The visitor's figure can be checked at the same time.

Any of the master unit A and the subsidiary master unit A ',
At A ", when the extension call A button b2 and the extension call B button b3 are operated to call an extension, the other master unit A, sub master unit A ',
Out of A ", the parent device A and the sub-parent devices A ', A" belonging to a preset group are called by ringing a ringing tone;
A ringing sound from the additional speaker D connected to these is sounded or emitted.

In the master unit A and the subsidiary master unit A ', when the monitor button b4 is operated, the image taken by the camera c of the door phone slave B is displayed in color on the liquid crystal panel P, and the door phone slave B is displayed. It can also monitor audio input through a microphone. Such a call,
In the intercom system for making a call, the present invention is characterized in that the following local priority calling function is provided. Next, the local priority calling function will be described.

Steps 100 to 104 in FIG.
9 is a flowchart showing an operation when a call call button C1 connected to the terminal is operated. First, when the user operates the call call button C1, the base unit A sounds a ringing sound for a predetermined time, and determines whether or not there is a response by operating the call switch b1 during that time. If so, the ringing tone is stopped, but if there is no response, a ringing signal is sent out to all of the sub master units A 'and A "connected to the master unit A, and the ringing tone sounds simultaneously. In order to perform this local priority calling operation, it is necessary that a local priority calling setting (described later) of the call calling button C1 connected to the base unit A has been made in advance. Next, the operation when the call button C2 connected to the sub-base unit A 'in which the local priority call setting has been set in advance is operated will be described with reference to FIG.
Reference numerals 205 show the basic operation in this case.

In this case, when the user operates the call call button C2, a ringing tone is output from the sub master unit A 'to which the call call button C2 is added. Upon receiving the call of the call call button C2, the sub master unit A 'sounds a ringing tone, and operates the call switch b1 of the sub master unit A' to answer the call until the predetermined time elapses. The ringing is stopped, but if there is no response within the predetermined time, all other sub-base units A ′ and A ″ including the base unit A will sound the ringing at once (202 to 206). In the above, the local priority calling operation when the call calling buttons C1 and C2 are operated has been described.
A call may be made to the extension call of A ". In this case, the setting of the local priority call is made by the base unit A and the intercom sub-base unit A 'to be targeted is specified. During the first predetermined time after receiving an extension call from the intercom sub master unit A ', a ring tone is output from the master unit A with priority, and if there is no response from the master unit A within that time, the system A call is made from all the sub master units A ′ and A ″ and the additional speaker D.

Next, the configurations of the interphone master unit and the interphone sub master unit of the present invention will be described with reference to FIGS. FIG. 4 is a block diagram showing an example of a main configuration of intercom master unit A. This intercom master unit A
CPU1, audio signal, control signal,
A multiplexing / demultiplexing circuit for demultiplexing a video signal and an audio signal, which are multiplexed and transmitted to the doorphone slave B, or multiplexed and transmitted from the doorphone slave B, the doorphone. Video signal demodulation circuit 3 for demodulating the video signal sent from handset B, doorphone handset B
A sub-unit call detection circuit 4 for detecting a call from the user, a control signal circuit for sending a control signal to the door phone sub-unit B, and a power supply to the door phone sub-unit B for monitoring operation. Power supply circuit 6, speaker sp and microphone m
A communication circuit 7 for enabling intercom communication with the intercom slave unit B and the sub master units A 'and A ", and a speaker from the intercom slave unit B and the sub master units A' and A" a ringing circuit 8 for sounding a ringing tone from the sp; an external device connection terminal 9 for connecting external devices such as an additional speaker D and a call ringing button C1; a switch having a function setting switch 10A (described later); An operation switch, a setting button 10, a human body detection signal input circuit 11 for receiving a human body detection signal from the human body detection sensor S, and a liquid crystal driver 12 for displaying an image taken by the door phone handset B on the liquid crystal panel P are provided. Among the switches and buttons 10, the intercom master unit A includes a call button b1, an extension call A button b2, an extension call B button b3, and a monitor button b4 as operation switches, and the user operates these operation switches. This allows the base unit A to perform a call, an extension call, and a monitor operation. The various operation switches and the setting button 10 are provided with a power switch, a ring volume adjustment switch, a brightness adjustment switch, and a terminating resistance switch.

As the function setting switch 10A, the master unit A
By operating this, the setting contents are displayed as a function setting screen on the liquid crystal panel P, and a call switch such as a call button b1, an extension call A button b2, an extension call B button b3, and a monitor button b4. May be operated, and a plurality may be provided in the master unit A in accordance with each function, and these switches 10A may be operated to set.

In the former, the user sets the function setting switch 1
By operating 0A, the function setting contents as shown in FIG. In this example, the items and contents of each function are displayed. When the user operates the extension call A button b2, the settable items (1) to (12) are sequentially scrolled and displayed. After selectively displaying the items (1) to (12) that can be set, the extension call B button b3 is operated to reverse or scroll the setting display contents such as ON or OFF. The user can select a setting item in this way and select a setting item in this way, and the set function can be determined by operating the monitor button b4.

Here, among the items, the intercom 1 setting means that the call from the intercom slave B (# 1) is set to be valid or invalid, and the intercom 2 setting is the intercom slave B (#).
This means that the call from 2) is set to be valid or invalid. Also, call 1 call and call 2 call are
This means that when the call button C1 connected to the base unit A is operated, and when the call button C2 is operated, the call is received and a ringing sound is set. ing.

The talkback setting means that, when an extension call is received from the master unit A and the auxiliary master units A 'and A ", the responded voice can be called without operating the call switch b1 to answer. Furthermore, the sensor monitor setting means that the intercom slave device that is driven when the human body detection sensor S continues to detect a person for a predetermined period of time. B is selected and set.

In addition, when there is a call from the intercom slave B, the master unit A of such a system sounds a ringing tone from the speaker sp and displays a pictorial symbol corresponding to each call of the intercom slave B. It is displayed on the liquid crystal panel P so that the user can easily confirm which of the intercom units B is calling. Furthermore, in the intercom system of the present invention, the master unit A and the subsidiary master units A 'and A "
Since each of them has the liquid crystal panel P, by displaying the operation here, a more convenient and convenient configuration can be obtained. For example, two doorphone slave units B (# 1), (#
When a call is received from 2), the called doorphone slave B is displayed in pictograms (pictograms, etc.), and during a call with any doorphone slave B, the other doorphone slave B is displayed.
When a call is received from, an image of the pictogram of the intercom slave B that made the call is displayed.

Further, when the call button C1 connected to the main unit A is operated, a pictorial symbol indicating that the call is a call 1 is displayed on the operation panel P, while the call is connected to the sub-main unit A '. When the called call button C2 is operated, a pictorial symbol indicating that the call is a call 2 is displayed on the liquid crystal panel P. In addition, when an extension call is received from the sub master units A 'and A ", if the call is from a sub master unit belonging to the group A, a pictorial symbol indicating that the call is extension A is displayed on the liquid crystal panel P. If the call is from a sub-base unit belonging to group B, a pictorial symbol indicating extension B is displayed on liquid crystal panel P.

Next, the basic configuration of the intercom sub master unit A 'will be described. FIG. 6 is a block diagram showing an example of a main configuration of the intercom sub master unit A ′. The intercom sub master unit A 'includes a CPU 20 for controlling the following units,
Multiplexing / demultiplexing for multiplexing the audio signal, the control signal, and the power supply and demultiplexing the video signal and the audio signal transmitted to the master unit A and the multiplexed and transmitted signal from the master unit A, respectively. Circuit 21, a video signal demodulation circuit 22 for demodulating a video signal sent from master unit A, a call signal transmitting / receiving circuit 23 for transmitting / receiving a call signal to / from master unit A, and a signal supplied from master unit A. An internal power supply circuit 24 that separates the power supply and uses it as a power supply, a speaker sp and a microphone m,
Intercom telephone call circuit 25, ringer circuit 26 for generating a ringing tone from speaker sp, external device connection terminal 27 for connecting external devices such as additional speaker D and call ring button C2, function setting switch 18A
A switch having buttons (described later), buttons 28, and a liquid crystal driver 29 for receiving the video signal demodulated by the video signal demodulation circuit 22 and projecting the video from the intercom slave units B1 and B2 onto the liquid crystal panel P are provided.

Of the switches and buttons 28, the intercom sub-master unit A 'includes a call button b1, an extension call A button b2, an extension call B button b3, and a monitor button b4 as operation switches, similarly to the master unit A. By operating these operation switches, the user can perform a call, an extension call, and a monitor operation with the sub master unit A '. The switches and buttons 28 are provided with a power switch, a ring volume adjustment switch, a brightness adjustment switch, and a terminating resistance switch, similarly to the main unit A.

As the function setting switch 28A, the master unit A
Similarly, only one is provided, and by operating this, the setting contents are displayed on the liquid crystal panel P as a function setting screen, and a call button b1, an extension call A button b2, an extension call B button b
3. A call switch such as a monitor button b4 may be operated to be set. A plurality of sub master units A 'are provided in accordance with respective functions, and these switches 28A are operated to be set. Is also good. In the former case, when the user operates the function setting switch 28A, predetermined function setting contents are displayed on the liquid crystal panel P, similarly to the master unit A.

In this example, the local priority call setting of the own device is performed. If this setting is "ON", when the call call button C2 connected to the own device is operated, the secondary call is set. Master device A 'sends a call signal to master device A, and upon receiving the call signal, master device A executes the local priority calling operation (described above). In such a secondary master unit A ', if there is a call from the doorphone slave B, a ringing tone is sounded from the speaker sp, and a pictorial symbol corresponding to each call of the doorphone slave B is displayed on the liquid crystal panel P. Thus, the user can easily confirm which of the intercom units B is calling.

When a call is received from the other doorphone slave B during a call with one of the doorphone slaves B,
The image of the other intercom slave B is displayed on the liquid crystal panel P, and a pictorial symbol indicating the fact is displayed at a predetermined position on the liquid crystal panel P. Further, when the call button C1 connected to the main unit A is operated, a pictorial symbol indicating that the call is a call 1 is displayed on the operation panel P, while the call page connected to the sub-base unit A 'is displayed. When the button C2 is operated, a pictorial symbol indicating that the call is a call 2 is displayed on the liquid crystal panel P.

In addition, when an extension call is received from the master unit A and the other subsidiary master units A 'and A ", whether the call is from the master unit A and the subsidiary master units A' and A" belonging to the group A. For example, a pictorial symbol indicating that the call is extension A is displayed on the liquid crystal panel P. On the other hand, if the call is from the parent device A and the sub-master devices A ′ and A ″ belonging to the group B, the extension B is called. Are displayed on the liquid crystal panel P, and these have the same functions as the master unit.

[0032]

As can be understood from the above description, in the intercom system according to the first aspect, since the target of local priority calling is the interphone secondary master unit, the person to be called is given priority. , A specific person can be called and a call can be made without bothering others. Also, the base unit is preferentially called for a predetermined time, and if there is no response from the base unit within that time, a ringing tone is sounded simultaneously from the other sub-base units, so that an extension call can be reliably performed. Claim 2
In the intercom system described in, the target of local priority calling is the intercom master, and the intercom submaster is a call call button attached as an external device, so the toilet without the submaster is installed. Without disturbing others in the bathroom, calling the sick or elderly caregiver,
Can be called. In the intercom master unit according to the third and fourth aspects, the intercom master unit and the call calling button are individually designated, and the function setting means for setting the local priority calling is provided. To set local priority call. In the interphone sub-master according to the fifth and sixth aspects, local priority calling can be set for the interphone sub-master itself or a call call button additionally connected to the sub-master as an external device.

[Brief description of the drawings]

FIG. 1 is a flowchart for describing a local priority calling operation in a base unit.

FIG. 2 is a system diagram showing an example of an intercom system of the present invention (an example applied as a multi-station television intercom).

FIG. 3 is a flowchart illustrating a local priority calling operation in a sub master unit.

FIG. 4 is a block diagram showing an example of a configuration of a main part of the intercom master unit of the present invention.

FIG. 5 is a diagram illustrating function setting items and contents in the intercom master unit.

FIG. 6 is a block diagram showing an example of a configuration of a main part of the intercom secondary master unit of the present invention.

FIG. 7 is a diagram showing a conventional intercom system.

[Explanation of symbols]

 A: Interphone master unit A ', A ": Interphone sub master unit B: Doorphone slave C1: Call call button (call 1) C2: Call call button (call 2) D. ..Extension speaker 9 ・ ・ ・ External device connection terminal (master) 10A ・ ・ ・ Function setting switch (master) 27 ・ ・ ・ External device connection terminal (submaster) 28A ・ ・ ・ Function setting switch (submaster) Machine)

Claims (6)

[Claims] In an intercom system configured by connecting a plurality of intercom sub-masters to an intercom master connected to a doorphone slave, the intercom master includes a pre-set local priority calling function. When a call is received from the handset, only the base unit is preferentially called for a predetermined time until the call is answered, and after a predetermined time elapses without answering the call, the other intercom sub-base unit is called. An intercom system configured to perform a call operation to a telephone. 2. An intercom system in which a plurality of intercom sub-master units are connected to an intercom master unit to which a doorphone slave unit is connected, a call call button is additionally connected to the intercom master unit and the interphone sub-master unit. An intercom system that is configured so that a local priority calling function can be set for a call calling button in the system on the intercom master unit side. 3. An intercom base unit to which a plurality of interphone sub-base units are connected, the intercom base unit having a function setting means for individually designating the intercom sub-base units and setting local priority calling. 4. The intercom base unit according to claim 3,
An intercom, which is provided with an external device connection terminal for additionally connecting an external device such as a call call button and an additional speaker, so that a local priority call can be set for the call call button. Parent machine. 5. An interphone sub-master connected to the interphone master and supplied with power from the interphone master and operated in response to a control signal, wherein the interphone sub-master includes a function setting means for setting a local priority call. Machine. 6. An intercom secondary master unit according to claim 5, further comprising an external device connection terminal for additionally connecting an external device such as a call call button or an additional speaker,
An intercom secondary master unit that allows setting of local priority calling for the call call button.