JP2002111882A - Interphone system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a satisfactory bidirectional call with a resident present in a dwelling unit in a call state even if a visitor performing a call operation at a dwelling unit entrance is a person of a advanced age or a handicapped person having defective hearing and noise is large near the periphery of the dwelling unit entrance. SOLUTION: For calling an intra-dwelling unit master machine 2 by depressing the call key 11 of the entrance slave machine 1 is a waiting state, and making a call between the slave machine microphone 12 and the slave machine speaker 13 of the entrance slave machine and the master machine transmission/ reception part 23 of the intra dwelling unit master machine, the entrance slave machine has a display 17 which displays a sound signal from an indoor master machine in a call state in a character representation. A sound recognition device 3 for converting the sound signal from the master machine transmission/ reception part into a character code and displaying it in character on a display is arranged in the entrance slave machine or the intra-dwelling unit master machine.

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, as a means for confirming a reception sound from a resident who is present in a dwelling unit in a dwelling state, when a visitor performing a call operation at a dwelling unit entrance is in a talking state. The present invention relates to an intercom system using auditory means by means of visual and visual means by means of character display.

[0002]

2. Description of the Related Art Conventionally, as this kind of intercom system, an intercom system having a configuration shown in a block diagram of FIG. 4 has been proposed.

The intercom system shown in FIG. 1 is installed at the entrance of a dwelling unit, and has a slave unit CPU 60, a call button 61, a slave unit microphone 62, a slave unit speaker 63, a slave unit transmission amplifier 64,
Handset receiver amplifier 65, handset communication circuit 66, handset transmission interface circuit (hereinafter referred to as handset transmission I / F) 67
And a main unit CPU installed in the dwelling unit
70, a loudspeaker 71, a ringing tone generating circuit 72, a handset constituting a base unit transmission / reception unit 73, a base unit transmission amplifier 74,
Base unit receiver amplifier 75, base unit communication circuit 76, base unit transmission interface circuit (hereinafter referred to as base unit transmission I / F) 77
, And the entrance slave unit 51 and the dwelling unit parent device 52 are connected via a trunk line L51 composed of a paired wire.

In the intercom system configured as described above, a visitor at the entrance of the dwelling unit calls a call button 61 of the entrance cordless handset 51 to call a resident present in the dwelling unit.
Is pressed, the call signal from the slave CPU 60 detecting this operation is transmitted to the master CPU 70 via the slave transmission I / F 67, the trunk line L51, and the master transmission I / F 77 of the master 52 in the dwelling unit.
Is transmitted to

The base unit CPU 70 of the base unit 52 in the dwelling unit detects a call from a visitor at the dwelling unit based on a calling signal transmitted from the entrance unit 51, and generates a ringing tone generating circuit 72.
Is activated. In addition, the ringing tone generation circuit 72 activated under the control of the master unit CPU 70 emits a ringing tone with the loudspeaker 71 to notify a resident who is present in the dwelling unit of a call.

Next, the loud speaker 71 of the parent unit 52 in the dwelling unit
Based on the ringing sound emitted at, the resident who is present in the dwelling unit that has confirmed the call from the visitor at the dwelling unit entrance, picks up the handset forming the master unit transmission / reception unit 73, The microphone 80 and the receiver 81 of the handset constituting the master unit transmission / reception unit 73 used by the occupant are controlled by the master unit CPU 70 that has detected the operation and the slave unit CPU 60 of the entrance slave unit 51 (not described in detail). Talk amplifier 74, master receiver amplifier 75, master talk circuit 76, master transmission I / F7
7. Via the trunk line L51, the handset transmission I / F 67 of the entrance handset 51, the handset communication circuit 66, the handset transmission amplifier 64 and the handset reception amplifier 65, the handset microphone 62 and the handset used by the visitor A communication path with the speaker 63 is formed, and an audio signal is transmitted and received via this communication path, thereby establishing a two-way communication.

[0007]

However, in the conventional intercom system, when a visitor who performs a call operation at the entrance of a dwelling unit is, for example, an elderly person or a physically handicapped person with hearing impairment such as hearing impairment, or the entrance of the dwelling unit, When the noise near the surrounding area is loud, visitors cannot hear the sound of the resident in the dwelling unit accurately, and it is difficult to establish a good two-way call. .

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks. As a means for a visitor performing a call operation at a dwelling unit to check a reception sound from a resident who is present in the dwelling unit, By using auditory means by sound emission and visual means by character display, if the visitor is, for example, the elderly or a physically handicapped person with hearing impairment such as hearing loss, or noise near the entrance to the dwelling unit is large. Even in such a case, an object of the present invention is to provide an intercom system capable of establishing a good two-way call with a resident in a call state.

[0009]

In order to attain this object, an intercom system according to the present invention calls a main unit in a dwelling unit by pressing a call button of an entrance unit in a standby state, and a child unit of the entrance unit. An intercom system for performing a call between a main unit microphone, a sub unit speaker, and a main unit transmitter / receiver unit of a main unit in a dwelling unit, wherein the entrance sub unit includes a display for displaying a voice signal from the main unit in the dwelling unit in a call state. A voice recognition device for converting a voice signal from the transmitter / receiver of the main unit into a character code and displaying the character on a display is provided on one side of the main unit and the main unit in the dwelling unit. It is characterized by.

[0010] According to such an intercom system, the audio signal, which is transmitted from the resident and is picked up by the base unit transmitter / receiver unit of the base unit in the dwelling unit, is transmitted to the resident speaker of the entrance slave unit. The sound is emitted as a reception sound from the person, and is converted into a character code via a voice recognition device provided on one of the entrance cordless handset and the parent unit in the dwelling unit, and is displayed on the display of the entrance cordless handset. You. As described above, the means for the visitor performing the call operation at the dwelling unit to check the reception sound from the resident who is present in the dwelling unit includes the audible means by sound emission and the visual means by character display. By being used, even if the visitor is a disabled person, for example, the elderly, hearing impaired, etc., or if there is loud noise near the entrance to the dwelling unit, good interaction with the resident can be achieved during a call. A call can be established.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments to which an intercom system according to the present invention is applied will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an intercom system according to an embodiment of the present invention. The intercom system is installed at the entrance of a dwelling unit, and a call function and a call function of a visitor to a resident who is present in the dwelling unit. An entrance cordless handset 1 having a function of displaying a character of a sound received from a resident, a call notification function installed in a dwelling unit and notifying a resident of the room of a call from a visitor, The main unit 2 having a telephone call function, and one of the entrance slave unit 1 and the main unit 2 in the dwelling unit, in this embodiment, provided on the side of the main unit 2 in the dwelling unit. It comprises a voice recognition device 3 for digitally processing a voice signal forming a transmission sound from a resident collected by the function and converting it into a character code. In addition, the entrance slave unit 1 and the parent unit 2 in the dwelling unit are connected via a trunk line L1 composed of a pair line. Further, the master unit 2 in the dwelling unit and the voice recognition device 3 are connected via a trunk line L2 including a voice transmission line L2a and a character code transmission line L2b.

An entrance slave unit 1 shown in FIG. 1 has a slave CPU 10 for controlling (operating) the entrance slave unit and a visitor at a dwelling unit calling a resident who is present in the dwelling unit. A microphone 11 for picking up a transmission sound for a visitor to establish a call with a resident;
A handset speaker 13 for emitting a reception sound, and a handset CPU 10
Is activated by the control of the sub-unit, the sub-unit transmission amplifier 14 for amplifying the audio signal forming the transmission sound collected by the sub-unit microphone 12, and the voice forming the reception sound emitted by the sub-unit speaker 13. A receiver receiver amplifier 15 for amplifying a signal,
It becomes active under the control of the slave unit CPU 10 and the slave unit microphone 1
2 to form a signal transmission path between a slave unit transmission amplifier 14 connected to the slave unit 2 and a slave unit receiver amplifier 15 connected to the slave unit speaker 13 and a slave unit transmission interface circuit 18 described later, that is, a communication path. And a display 17 for displaying a voice signal, which is activated by the control of the slave unit CPU 10 and the reception sound from the master unit 2 in the dwelling unit in a call state, and the slave unit CPU 10 and the slave unit communication A slave unit transmission interface circuit (hereinafter, referred to as a slave unit transmission I / F) 18 for forming a signal transmission path between the circuit 16 and the trunk line L1 and transmitting and receiving various signals (including data) is provided.

The master unit 2 shown in FIG. 1 is a master unit CPU 20 for controlling (controlling the operation of) the master unit in the dwelling unit, and receives a call from a visitor at the dwelling unit in the dwelling unit. A loudspeaker 21 that emits a ringing tone for informing the resident, and a call that becomes active under the control of the base unit CPU 20 and generates (outputs) a ringing tone signal for causing the loudspeaker 21 to emit a ringing tone. A sound generating circuit 22; a handset serving as a base unit transmission / reception unit 23 used for transmitting and receiving voices for a resident to make a call with a visitor;
Is activated by the control of the main unit, the main unit transmission amplifier 24 and the main unit transmission / reception unit 23 for amplifying the audio signal forming the transmission sound picked up by the microphone 30 of the handset forming the main unit transmission / reception unit 23 A base unit receiver amplifier 25 for amplifying an audio signal forming a reception sound emitted by the receiver 31 of the handset, and a microphone 30 of the handset serving as the base unit transmission / reception unit 23 which is activated under the control of the base unit CPU 20.
, A signal transmission path between a base unit receiver amplifier 25 connected to a receiver 31 of a handset forming a base unit transmitter / receiver unit and a base unit transmission interface circuit 27 described later, that is, , A main unit communication circuit 26 for forming a communication path, and a main unit CPU 20, and a signal transmission path between the main unit communication circuit 26 and the trunk line L1 for transmitting and receiving various signals (including data). Master unit transmission interface circuit (hereinafter referred to as master unit transmission I / F) 2
And 7. In addition, the base unit CPU 20 is connected to the voice recognition device 3 via a character code transmission line L2b forming a trunk line L2.
Is connected. Further, a voice recognition device 3 is connected to a connection point between the base unit transmission amplifier 24 and the base unit communication circuit 26 via a voice transmission line L2a forming a trunk line L2.

The operation of the thus configured intercom system according to one embodiment of the present invention will be described below.

In the block diagram of FIG. 1, when a visitor at the entrance of a dwelling unit presses the call button 11 of the entrance cordless handset 1 to call a resident who is occupied in the dwelling unit, the handset detecting this operation is detected. The CPU 10 shifts from the standby state to the calling state. Further, the slave unit CPU 10 in the calling state sends a calling signal, and the calling signal is transmitted to the slave unit transmission I / F 18 and the trunk line L.
1. Base unit C via base unit transmission I / F 27 of base unit 2 in dwelling unit
It is transmitted to PU20.

The base unit CPU 20 of the base unit 2 in the dwelling unit detects a call from a visitor at the dwelling unit on the basis of the call signal transmitted from the entrance unit 1, and shifts from the standby state to the calling state. You. In addition, the base unit CPU 20 in the ringing state activates the ringing tone generation circuit 22, emits a ringing tone with the loudspeaker 21 based on the ringing tone signal from the ringing tone generation circuit, and outputs the ringing tone in the dwelling unit. Call the residents.

Next, based on the ringing sound emitted from the loudspeaker 21 of the parent unit 2 in the dwelling unit, the resident who is present in the dwelling unit confirms a call from a visitor at the dwelling unit. When the handset serving as the base unit transmission / reception unit 23 is picked up, a hook switch (not shown) is hooked off, and the base unit CPU 20, which detects this, shifts from a calling state to a calling state based on a calling response. In addition, the base unit CPU 20 in the talking state activates the base unit transmission amplifier 24, the base unit reception amplifier 25, and the base unit communication circuit 26, respectively, and sends a call response signal. The call signal is transmitted to the handset CPU 10 of the front door handset 1 via a path reverse to the transmission path.

The handset CPU 10 of the entrance handset 1 detects a call response by a resident present in the dwelling unit based on the call response signal transmitted from the dwelling base unit 2, and changes the calling state to the call state. Will be migrated to. Also, the slave unit CPU 10 in a call state
Activates the slave unit transmission amplifier 14, the slave unit reception amplifier 15, the slave unit communication circuit 16, and the display 17 respectively. As a result, the microphone 30 and the receiver 31 of the handset forming the base unit transmission / reception unit 23 of the base unit 2 used by the resident, the base unit transmission amplifier 24 and the base unit reception amplifier 25, the base unit communication circuit 26, Machine transmission I / F27, trunk line L
1, Slave transmission I / F 18 of entrance slave 1, Slave communication circuit 1
6. A communication path is formed between the slave unit microphone 12 and the slave unit speaker 13 used by the visitor via the slave unit transmission amplifier 14 and the slave unit reception amplifier 15.

Here, the microphone 3 of the handset serving as the base unit transmission / reception unit 23 of the base unit 2 in the dwelling unit allows the resident in the dwelling unit to establish a call with a visitor in the dwelling unit.
The transmission sound collected at 0 is converted to an electric signal as a voice signal (hereinafter referred to as a base unit transmission sound signal) as a base unit transmission amplifier 2.
4. Base unit communication circuit 26, base unit transmission I / F 27, trunk line L
1, Slave transmission I / F 18 of entrance slave 1, Slave communication circuit 1
6. The signal is transmitted to the child device speaker 13 via the child device reception amplifier 15, the reception sound from the visitor is emitted by the child device speaker 13, and the parent device transmission amplifier 24 and the voice transmission forming the trunk line L2. It is transmitted to the speech recognition device 3 via the line L2a. Further, the voice recognition device 3 digitally processes the base unit transmission sound signal transmitted from the base unit 2 in the dwelling unit and converts the converted signal into a character code (hereinafter, referred to as character code data), and transmits the character code. The data is transmitted to the master unit CP of the master unit 2 in the dwelling unit via the character code transmission line L2b forming the trunk line L2.
It is transmitted to U20. Further, the parent device CP (in a call state)
U20 converts the character code data from the voice recognition device 3 into
The slave CPU 10 of the entrance slave 1 transmits the signal via the same transmission path as the above-described call response signal.

The slave unit CPU 10 of the entrance slave unit 1 sends the character code data transmitted from the master unit 2 in the dwelling unit to the display 17, and the character code forming a reception sound from a resident in the dwelling unit. Is displayed, the visitor at the entrance of the dwelling unit in the call state hears the sound of the resident speaker in the dwelling unit based on the sound output of the slave unit speaker 13 and the character display on the display 17. It can be confirmed not only by means of visual means but also by visual means, even if the visitor is, for example, an elderly person, a physically handicapped person with hearing impairment such as hearing loss, or a case where the noise near the entrance to the dwelling unit is loud. Thus, it is possible to accurately confirm the reception sound from the resident.

On the other hand, a visitor at the entrance of the dwelling unit is required to establish a call with a resident in the dwelling unit.
The transmission sound picked up by the slave unit microphone 12 is converted into an electric signal (hereinafter referred to as a slave unit transmission sound signal) as a slave unit transmission amplifier 14, a slave unit communication circuit 16, Machine transmission I / F 18, trunk line L1, slave unit transmission I / F of dwelling unit master unit 2
27, transmitted to the receiver 31 of the handset constituting the base unit transmitter / receiver unit 23 via the base unit communication circuit 26 and the base unit receiver amplifier 25, and the receiver of the handset emits the reception sound from the resident. Thereby, a good two-way call between the resident and the visitor is established.

Also, when the above two-way communication is established,
The resident unit in the dwelling unit transmits / receives the base unit transmission / reception unit 2 of the base unit 2 in the dwelling unit in order to end the call with the visitor at the dwelling unit entrance.
When the handset 3 is returned, a hook switch (not shown) is hooked on, and
Disables the base unit transmission amplifier 24, the base unit reception amplifier 25, and the base unit communication circuit 26, and transmits the call end signal to the front-end handset 1 via the same transmission path as the above-described call response signal. The data is transmitted to the slave unit CPU 10 and is restored from the talking state to the standby state.

The handset CPU 10 of the entrance handset 1 detects a call end operation by a resident present in the dwelling unit based on the call end signal transmitted from the dwelling base unit 2, and sends the handset to the handset. The talk amplifier 14, the handset receiver amplifier 15, the handset communication circuit 16 and the display 17 are deactivated, and the call state is restored to the standby state.

In the above-described embodiment, a voice signal that is transmitted by a resident who is present in the dwelling unit and is picked up by the calling function of the parent unit in the dwelling unit is digitally processed and converted into a character code. A case has been described in which the voice recognition device 3 is provided on the parent device side in the dwelling unit. However, the present invention is not limited to this, and as another embodiment, as shown in the block diagram of FIG.
Side, that is, the trunk line L connected to the voice recognition device 3
2, a voice transmission line L2a and a character code transmission line L2
b is connected to a connection point between the handset receiver amplifier 15 and the handset speaker 13 and to the handset CPU 10, respectively.
6 is transmitted to the voice recognition device 3 through the voice transmission line L2a forming the main line L2, and the character code (the received voice) converted into the character code by the voice recognition device is transmitted. By displaying the character code data) on the display 17 via the character code transmission line L2b forming the trunk line L2 and the slave unit CPU 10, the same effect as in the above-described embodiment can be obtained.

In the above-described embodiment and the other embodiments, the parent machine transmission / reception used to transmit and receive a voice that allows a resident in the dwelling unit to establish a call with a visitor at the dwelling unit entrance. Although the unit 23 has been described as a handset having the microphone 30 and the receiver 31, the present invention is not limited to this.
(The illustration of the connection with the voice recognition device 3 is omitted), the base unit transmission / reception unit 23 including the base unit microphone 40 and the base unit speaker 41 is also preferable, and the call from the visitor is sent to the resident. By causing the base unit speaker 41 to emit the ringing tone to be notified, the loudspeaker 21 shown in the block diagram of FIG. 1 becomes unnecessary and the circuit configuration can be simplified.

Further, master unit microphone 40 and master unit speaker 4
In order to apply the base unit transmitter / receiver unit 23 comprising the base unit 1 and provide the base unit 2 in the dwelling unit, in order for a resident who is occupied in the dwelling unit to confirm a call from a visitor at the dwelling unit, a call is answered. Means of pressing a call button (not shown) is used,
The above-mentioned communication path is formed under the control of the master unit CPU 20 that detects this operation, so that a hands-free call can be established. In order to end the call, a call end button (not shown) is pressed. (Not detailed).

[0028]

As is apparent from the above description, according to the intercom system of the present invention, a visitor who performs a call operation at the entrance of a dwelling unit confirms a reception sound from a resident who is present in the dwelling unit. As means, an auditory means for confirming the reception sound emitted from the slave unit speaker of the entrance slave unit and a visual means for confirming the character code displayed on the display are used, so that visitors can For example, a good two-way communication with a resident can be established in a call state even in a case where the elderly person, a physically handicapped person such as a hearing impaired person or the like has a hearing impairment, or a case where the noise around the entrance of the dwelling unit is loud.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an intercom system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of an intercom system according to another embodiment of the present invention.

FIG. 3 In one embodiment of the present invention and another embodiment,
It is a block diagram which shows the other example of a structure of the base station transmission / reception part provided in the dwelling unit base unit which comprises an intercom system.

FIG. 4 is a block diagram showing a configuration of a conventional intercom system.

[Explanation of symbols]

 1 ·······································································································・ Slave speaker 17 ・ ・ ・ ・ ・ ・ ・ Display 23 ・ ・ ・ ・ ・ ・ ・ Main unit transmitter / receiver

Claims (1)

[Claims] When a call button (11) of an entrance slave unit (1) is depressed in a standby state, a parent unit (2) in a dwelling unit is called, and a slave unit microphone (12) and a slave unit of the entrance slave unit are called. A speaker (13) and a master unit transmission / reception unit (23) of the master unit in the dwelling unit
An intercom system for making a telephone call with the main unit, wherein the entrance slave unit has a display (17) for displaying a voice signal from the parent unit in a character state in a call state, and An intercom provided with a voice recognition device (3) for converting a voice signal from the master unit transmission / reception unit into a character code and displaying the character code on the display on one side of the device. system.