JPH11146071A - Door phone system - Google Patents

Abstract

(57) [Summary] [PROBLEMS] When a visitor or a resident wants to talk with a desired party between an outdoor unit provided outdoors and a plurality of indoor units provided indoors, it is easy. Provide a door phone system that can talk to the other party. A specific vocabulary corresponding to each indoor unit is stored in a memory. The voice input from the outdoor unit 1 is recognized, and it is determined whether or not the specific vocabulary is included in the voice. When the specific vocabulary is included in the voice, the voice is output to the indoor unit corresponding to the specific vocabulary. If there is a response, start the call. If there is no response, all indoor units 2,
The sound is output simultaneously to 3, 4 or sequentially to another indoor unit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door phone system which includes an outdoor unit provided at a front entrance of a house and an indoor unit provided in a house, and enables a visitor and a resident to talk with each other.

[0002]

2. Description of the Related Art FIG. 5 is a block diagram showing a general configuration of a conventional door phone system. The door phone system includes an outdoor unit 51, an indoor master unit 52, and an indoor slave unit 53,
Each device is connected in parallel by a transmission line 55 composed of a two-wire cable composed of a pair of conductors.

[0005] The outdoor unit 51 includes a communication unit 61 having a built-in microphone and speaker for making a call with a home resident, a video camera unit 62 for imaging a visitor, and an outdoor unit 51.
Power supply unit 63 that supplies power required to operate
And the video signal, the audio signal, and the power signal to the transmission line 55.
And a multiplex transmission unit 64 for transmitting and receiving via

[0004] The indoor master unit 52 has a video display unit 65 for displaying a visitor imaged by the video camera unit 62 of the outdoor unit 51 as an image, and a video display unit 65 for displaying a visitor or another indoor unit. A call unit 66 for making a call with a person
The power supply unit 67 supplies power necessary for operating the indoor parent device 52, and a multiplex transmission unit 68 for transmitting and receiving video signals, audio signals, and power signals.

The indoor units 53 and 54 have a communication unit 71 for making a call with a visitor or a person in a room where another indoor unit is installed, and a unit for operating the indoor units 53 and 54. And a multiplexing transmission unit 73 for transmitting and receiving audio signals and power signals.

[0006] With the above configuration, a visitor passes through the outdoor unit 51, and a person in the house receives the indoor master unit 52 or the indoor slave unit 5.
Calls can be made to each other through the third and the third calls 54. In particular, the video camera unit 62 of the outdoor unit 51 can be activated from the indoor master unit 52 as needed to capture an image of the entrance, and the image display unit 65 can display the state of the entrance as an image.

In such a door phone system, for example, in the case of a two-family house or a condominium in which a single outdoor unit can communicate with all rooms, a visitor designates a room in the house or a room of the condominium using the outdoor unit. I do. in this case,
For example, as disclosed in Japanese Patent Application Laid-Open No. Hei 7-221856, a visitor needs to specify a room for talking by pressing a push button switch or the like provided in an outdoor unit and corresponding to each room.

When a call is to be made between rooms, it is necessary to designate a room to be called by pressing a push button switch provided in each indoor unit and corresponding to each room.

[0009]

As described above, when a visitor designates a desired room, it is necessary to display on the outdoor unit which room's indoor unit each push button switch corresponds to. . For this reason, when the number of indoor units is increased, there is a problem that visitors are confused, and the number of push-button switches is increased, and the outdoor units are unnecessarily large, which impairs the beauty of the entrance.

On the other hand, when an elderly person, an infant, or a sick person is in a certain room and there is no answer even when calling from another room with an indoor unit, there is a case where it is desired to check the condition of the room.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide a door phone system that enables a visitor or a resident to easily talk to a desired party when the visitor or resident wants to talk to the party.

It is a further object of the present invention to provide a door phone system which can easily confirm the state of a room in a case where a person in another room is not answered even if called by an indoor unit.

[0013]

SUMMARY OF THE INVENTION The present invention provides a door phone system capable of communicating between an outdoor unit provided outdoors and a plurality of indoor units provided indoors. Voice recognition means for recognizing a given voice, determination means for determining whether or not a specific vocabulary corresponding to each indoor unit is included in the voice, and a specific vocabulary when the specific vocabulary is included in the voice. A voice output control means for outputting a voice to a corresponding indoor unit and outputting a voice to all the indoor units when a specific vocabulary is not included in the voice.

According to the above configuration, when a resident is called from the outdoor unit, a specific vocabulary corresponding to each indoor unit, for example, a unique word such as a name and a room number is set, and the specific vocabulary is included. In other words, the sound from the outdoor unit is output only to the indoor unit in the room where the desired resident is. Therefore, the visitor does not need to select a switch of a desired room from among a plurality of switches corresponding to each room as in the related art, and can easily call a desired resident. Also, a person in another room can perform the work being performed at that time without being interrupted by the call of the visitor.

Here, if the specific vocabulary is not included in the sound from the outdoor unit, the sound from the outdoor unit is output to all the indoor units. Therefore, for example, even if a visitor utters a word that is not set to a specific vocabulary, it is output to all indoor units at the same time. You can hear

Further, by providing a detection means for detecting which indoor unit the sound input from the indoor unit is from, the sound from the outdoor unit is output to all the indoor units, and then any one of the indoor units is output. When a response voice from is detected,
The response voice can be output to the outdoor unit, and the visitor can surely talk to the desired resident.

Also, after outputting a sound from the outdoor unit to the indoor unit corresponding to the specific vocabulary, if there is no response from the indoor unit, the sound from the outdoor unit is output to another indoor unit. Is also good. In this case, the priority of the output indoor unit is determined for the specific vocabulary. In this way, the possibility that the visitor can talk to the desired resident without being noticed by a person other than the desired resident is increased, and simultaneous calling with relatively large power consumption can be suppressed as much as possible.

Further, another means for solving the problems according to the present invention is:
In a door phone system capable of talking between indoor units provided in a plurality of indoor units, at least one indoor unit is provided with an imaging unit for imaging an indoor room to which the indoor unit belongs, and recognizes a voice input from the indoor unit. Voice recognition means for determining whether or not a specific vocabulary corresponding to each indoor unit is included in the voice, and an indoor unit corresponding to the specific vocabulary when the specific vocabulary is included in the voice. A voice output control unit for outputting a voice, and an imaging control unit for activating the imaging unit of the indoor unit when there is no response when calling the indoor unit corresponding to the specific vocabulary.

According to this configuration, the indoor unit specified by the specific vocabulary is called, and when there is no response from the called indoor unit, the image pickup means of the indoor unit is activated. You can check the situation.

On the other hand, when the indoor unit is called by the specific vocabulary, if the response includes a specific vocabulary for which imaging is prohibited in the response, the imaging unit is not activated, so that the room in which the called indoor unit is located If the person in the room does not want to capture the situation of the room, if the user utters a word including a specific vocabulary prohibiting the capturing, the capturing means is not activated. Therefore, privacy can be protected.

[0021]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

<First Embodiment> FIG. 1 is a block diagram showing a configuration of a door phone system according to a first embodiment of the present invention. This intercom system includes an outdoor unit 1 provided outside a room such as an entrance, an indoor master unit 2 provided in a room in a house, indoor slave units 3 and 4 provided in other rooms, and an indoor master unit 2. And a control device 5 provided integrally with the control device. Each of the devices 1, 2, 3, 4, and 5 is connected by a transmission line 6 composed of a two-wire cable composed of a pair of conducting wires. More specifically, a multiplex transmission unit of each device described later is connected to a line switching unit of the control device 5 by a transmission line 6, respectively. The control device 5 may be provided independently of the indoor master unit 2 or may be provided integrally with the outdoor unit 1 or the indoor slave unit 3 or 4.

The outdoor unit 1 has a communication unit 11 having a built-in microphone and speaker for making a call with the resident, a control unit 12 for controlling the operation of the outdoor unit 1, and a video for imaging the entrance and the like. A camera unit 13, a power supply unit 14 for supplying power required to operate the outdoor unit 1, and a multiplex transmission unit 15 for transmitting and receiving a video signal, an audio signal, and a power signal via the transmission line 6. Have.

The indoor master unit 2 has a communication unit 1 for making a call with a visitor or a person in a room where another indoor unit is installed.
6 and a control unit 17 for controlling the operation of the indoor master unit 2
An image display unit 18 that displays an image captured by the video camera unit of the outdoor unit 1 or another indoor unit, a power supply unit 19 that supplies electric power required to operate the indoor master unit 2,
A multiplex transmission unit 20 for transmitting and receiving a video signal, an audio signal, and a power signal is provided.

The indoor slave unit 3 has a communication unit 2 for making a call with a visitor or a person in a room where another indoor unit is installed.
1 and a control unit 22 for controlling the operation of the indoor slave unit 3
A video camera unit 23 as an imaging unit for capturing an image of a room in which the indoor slave unit 3 is installed; a power supply unit 24 for supplying power required to operate the indoor slave unit 3;
A multiplex transmission unit 25 for transmitting and receiving a video signal, an audio signal, and a power signal is provided.

The indoor slave unit 4 has a communication unit 2 for making a call with a visitor or a person in a room where another indoor unit is installed.
6, a power supply unit 27 for supplying electric power required to operate the indoor slave unit 4, and a multiplex transmission unit 28 for transmitting and receiving a voice signal and a power signal.

In this door phone system, the number of outdoor units 1, indoor master unit 2, and indoor slave units 3 and 4 may be arbitrarily increased or decreased as needed. Further, the video camera unit and the video display unit may be provided in any indoor unit as needed.

The control unit 5 includes an outdoor unit 1 and each indoor unit 2,
A line switching unit 31 that switches lines to connect or disconnect between the indoor units 2 and 3 and between the indoor units 2 and 3, a control unit 32 that has a microcomputer and controls various controls, A multiplex transmission unit 33 for transmitting and receiving a voice signal and a power signal, and a voice input from the outdoor unit 1 and each of the indoor units 2, 3, and 4 are recognized, and a specific vocabulary (described later) is included in the voice. And a power supply unit 35 for supplying electric power required to operate the outdoor unit 1, the indoor units 2, 3, and 4, and the control device 5. .

FIG. 2 is a block diagram showing a detailed configuration of the control device 5 shown in FIG. As shown in the figure, a multiplexing transmission unit 33 includes a multiplexing processing unit 41 that modulates and demodulates a signal for transmitting an audio signal, and an analog audio processing unit 42 that performs processing such as amplifying an analog signal. Be composed.

The voice recognition / determination unit 34 converts the analog voice signal into a digital voice signal. The voice A / D converter 43 recognizes the voice and determines whether the voice includes a specific vocabulary. A digital voice processing unit 44 as voice recognition means and determination means for determining, and a voice D / A for converting a digital voice signal into an analog voice signal
And a conversion unit 45.

The control unit 5 also stores a real-time clock generator 46 for generating a clock signal for the control unit 32 to measure time, and specific vocabulary corresponding to the outdoor unit 1 and each of the indoor units 2, 3, and 4. And a memory 47.
Further, when a specific vocabulary is included in the input voice, it has a function of outputting a voice to each of the indoor units 2, 3, and 4 corresponding to the specific vocabulary.

Table 1 shows the correspondence between the specific vocabulary and the outdoor unit 1 and the indoor units 2, 3, and 4.

[0033]

[Table 1]

According to Table 1, for example, "Taro" and "Dad" as the specific vocabulary correspond to the indoor child unit 3, and "Hanako" and "Mom" correspond to the indoor parent unit 2. Therefore, “Ichiro” corresponds to the indoor child unit 4. In addition, the entrance 1 corresponds to the outdoor unit 1. The specific vocabulary can be changed to any specific vocabulary as needed, and the correspondence between the outdoor unit 1 and each of the indoor units 2, 3, and 4 can be arbitrarily set and changed.

Further, the priority is given to the person indicated by the specific vocabulary in the order of the indoor units arranged in the room where the person is more likely to be. According to Table 1, for example, "Taro"
For the specific vocabulary, the indoor slave unit 3, the indoor master unit 2, and the indoor slave unit 4 are set in descending order of priority. This is set in the order of the indoor units arranged in a room where a person named Taro is likely to be.

The operation of the intercom system having the above configuration will be described below with reference to the flowchart of FIG. As an example, a case where a friend who is a visitor comes to invite Ichiro who is a resident to play is shown.

First, a friend who comes to the entrance speaks to the outdoor unit 1 saying "Ichiro Kimibo". The voice input to the communication unit 11 of the outdoor unit 1 is modulated by the multiplex transmission unit 15, transmitted to the transmission line 6, and transmitted to the control device 5. The audio input to the control device 5 is demodulated by the multiplexing processing unit 41 via the line switching unit 31, and is converted from an analog signal to a digital signal by the audio A / D conversion unit 43.

Next, the voice signal converted into the digital signal is voice-recognized by the digital voice processing unit 44 (step S1), and the voice includes a specific vocabulary corresponding to each of the indoor units 2, 3, and 4. It is determined whether or not it is performed (step S2). The specific vocabulary is stored in the memory 47 in advance as described above.
The digital voice processing unit 44 compares the specific vocabulary stored in the memory 47 with the recognized voice.

Here, since the voice from the outdoor unit 1 includes the specific vocabulary of "Ichiro", the digital voice processing unit 44 sends a detection signal to that effect to the control unit 32. The control unit 32 that has received the detection signal sends the line switching unit 31 a switching signal for switching the line to connect the indoor child unit 4 and the outdoor unit 1 corresponding to the specific vocabulary “Ichiro”. With this switching signal, the line switching unit 31 connects the outdoor unit 1 and the indoor unit 4 in a line. However, the line switching unit 31 does not connect the indoor units 2 and 3 other than the indoor unit 4 and the outdoor unit 1 in a line manner.

On the other hand, the digital signal output from the digital audio processing unit 44 is converted into an analog signal by the audio D / A conversion unit 45, and is amplified by the analog audio processing unit 42.
It is processed. At this time, almost simultaneously with outputting the switching signal, the control unit 32 sends the analog audio processing unit 42 an audio output instruction signal for outputting the audio from the outdoor unit 1 to the indoor child unit 4. According to this audio output instruction signal, the audio signal is sent to the multiplexing processing unit 41, passes through the line switching unit 31,
It is sent to the indoor slave unit 4 corresponding to the specific vocabulary “Ichiro”.
As a result, the indoor child unit 4 outputs the sound "Ichiro Kimibo" (step S3). In this case, the control unit 32
Functions as voice output control means.

When the sound from the outdoor unit 1 is output to the room where the desired resident is, the resident recognizes that the visitor has come to himself. Then, by responding to the visitor through the indoor unit (YES in step S4),
The visitor and the resident can talk (step S5).

As described above, it is determined whether or not the specific vocabulary corresponding to each of the indoor units 2, 3, and 4 is included in the voice input from the outdoor unit 1, and the specific vocabulary is included in the voice. In this case, a sound is output to any of the indoor units 2, 3, and 4 corresponding to the specific vocabulary. Therefore, when the resident is called from the outdoor unit 1, a specific vocabulary corresponding to each of the indoor units 2, 3, and 4, for example, a unique word such as a name and a room number is set, and a word including the specific vocabulary is set. , The sound from the outdoor unit 1 is output only to the indoor unit in the room where the desired home is.

Therefore, the visitor can easily call a desired resident simply by calling the vocabulary, such as the name of the resident. Therefore, as before,
There is no confusion in selecting the pushbutton switch corresponding to the indoor unit where the desired resident is located, and there is no increase in the number of pushbutton switches and the size of the outdoor unit, which impairs the beauty of the entrance. Also, a person in another room can work without being interrupted by the call of the visitor.

On the other hand, in the determination processing of step S2,
When the specific vocabulary is not included in the voice from the outdoor unit 1 (NO in step S2), for example, when a friend talks to the outdoor unit 1 with "Yamada Kimibo", the memory 47 is included in the voice. Does not include the specific vocabulary “Ichiro” stored in the indoor unit 2, and the voice is output from all the indoor units 2, 3, and 4.

That is, the voice of “Yamada Kimibo” input from the outdoor unit 1 is sent to the control device 5 in the same manner as the above-described process, and is subjected to voice recognition processing by the voice recognition determination unit 34 of the control device 5. It is determined whether or not the specific vocabulary is included in the voice.

In this case, since the specific vocabulary is not included in the voice "Yamada Kimibo" input from the outdoor unit 1,
The digital audio processing unit 44 sends a non-detection signal to the control unit 32. Upon receiving the non-detection signal, the control unit 32
1 to the indoor unit 2 and all indoor units 2, 3, and 4.
Then, the sound input from the outdoor unit 1 is sent from the control device 5 to all the indoor units 2, 3, and 4. As a result, the sound "Yamada Kimibo" is output from all the indoor units 2, 3, and 4 at the same time (step S6).

As described above, when the voice input from the outdoor unit 1 does not include the specific vocabulary corresponding to the indoor units 2, 3, and 4, the voice is output to all the indoor units 2, 3, and 4. . Therefore, even if a visitor speaks a word that is not set as a specific vocabulary, it is output to all the indoor units 2, 3, and 4 at the same time. , You can hear that sound. In addition, a person who knows the doorphone system consciously utters words not in the specific vocabulary from the outdoor unit 1, thereby all the indoor units 2.
It is also possible to simultaneously output to 3 and 4.

After the sound is output to all the indoor units 2, 3, and 4, if there is a response from any of the indoor units (YES in step S 7), the response sound is output to the outdoor unit 1. Specifically, after the sound “Yamada Kimibo” is output to all the indoor units 2, 3, and 4, the control unit 32 determines whether the sound input from each of the indoor units 2, 3, and 4 is from To detect the response signal from each of the indoor units 2, 3, and 4. Specifically, the control unit 32 monitors the level flowing through the signal lines connected to the indoor units 2, 3, and 4 in the line switching unit 31. In this case, the control unit 32 functions as a detecting unit.

Here, for example, when a response voice of "wait a little" is input from the indoor child unit 3, the control unit 3
2 detects this sound and recognizes that there is a response from the indoor slave unit 3. In this case, since the control unit 32 only needs to monitor whether or not there is a response, only the presence or absence of the signal, the voice recognition processing is not performed.

Then, the control unit 32 sends a switching signal for connecting the outdoor unit 1 and the indoor slave unit 3 to the line switching unit 31. Thus, the line between the outdoor unit 1 and the indoor unit 3 is connected, and the sound input from the indoor unit 3 is transmitted to the outdoor unit 1.
Is output to That is, a friend at the entrance can hear a response voice of “wait a little” from the outdoor unit 1.

If the response voice is output from the outdoor unit 1, then the visitor can talk with the resident via the outdoor unit 1 (step S8), and the response voice is input from any of the indoor units 2, 3, and 4. If not, the process ends.

As described above, even when a call is made with words that do not include a specific vocabulary, after a sound is output to all the indoor units 2, 3, and 4, if there is a response from any of the indoor units, the response sound is output to the outdoor unit. Output to the device 1. Therefore, the visitor can surely talk to a desired partner.

In addition to the above-described communication between the outdoor unit 1 and each of the indoor units 2, 3, and 4, the same processing may be performed when talking between the indoor units. For example, when the mother informs the child in another room that the meal has been completed, the mother speaks to the indoor parent device 2 saying "I'm eating." In this case, since the specific vocabulary is not included in the sound from the indoor master unit 2, the sound is output to all of the indoor slave units 3 and 4.
Is output to However, since there is no need to output sound to the outdoor unit 1, the line switching unit 31 does not connect the indoor units 2, 3, and 4 to the outdoor unit 1.

After all of the indoor subunits 3 and 4 output “rice”, for example, if there is a response from the indoor subunit 4 to “eat later”, the control unit 32
This response is detected by the line switching unit 31 and the line switching unit 31 connects the indoor parent device 2 and the indoor child device 4 in a line. As described above, in the present embodiment, in addition to the communication between the outdoor unit 1 and each of the indoor units 2, 3, and 4, the present embodiment can be applied to the case where the indoor units communicate with each other.

Also, in step S4, after outputting the sound from the outdoor unit 1 to the indoor unit corresponding to the specific vocabulary,
If there is no response from the indoor unit, the sound from the outdoor unit 1 is output to another indoor unit corresponding to the specific vocabulary, which is more likely to have a desired home resident next. Then, when the occupant is not present in the room to which the other indoor unit belongs, the sound is output to the room in which there is a high possibility that the desired occupant is next.

Specifically, the voice "Ichiro Kimibo" is first output to the indoor child unit 4 corresponding to the specific vocabulary, and the voice "Ichiro Kimibo" is output. After that, the control unit 32
Monitors the level of the signal line connected to the indoor slave unit 4 corresponding to the specific vocabulary in the line switching unit 31,
The control unit 32 starts measuring a predetermined time based on the clock signal from the real-time clock generation unit 46.

At this time, if Ichiro is absent in the room where the indoor child unit 4 is located, and there is no response voice from the indoor child unit 4 within a predetermined time, the control unit 32 stores it in the memory 47. Line switching unit 3 based on the determined priority.
1, a switching signal for switching the line from the connection between the outdoor unit 1 and the indoor unit 4 to the connection with the next highest priority indoor unit 3 and the outdoor unit 1 is sent. The control unit 32 again outputs a voice output instruction signal to output the voice “Ichiro Kimibo” from the outdoor unit 1 to the indoor child unit 3 by the analog voice processing unit 42.
Send to As a result, the sound "Ichiro Kimibo" from the outdoor unit 1 is output to the indoor child unit 3 (step S9).

When the desired occupant is in the room arranged in the indoor slave unit 3, the visitor and the resident communicate with each other by responding to the visitor through the indoor slave unit 3 (YES in step S10). Yes (step S11).

On the other hand, when there is no response voice from the indoor child unit 3 (NO in step S10), and when the indoor child unit 3 is not the last indoor unit of the priority order (NO in step S12),
Based on the priority, the line is connected to the next highest-priority indoor master unit 2 and a sound “Ichiro Kimibo” is output to the indoor master unit 2.

Since the indoor master unit 2 is the last indoor unit of the priority order, if there is no response voice from the indoor master unit 2 (YES in step S12), that is, the specific vocabulary is connected to the corresponding priority order. If there is no response from any of the indoor units, a sound is output to all the indoor units 2, 3, and 4 at the same time (step S13).

If there is a response from any of the indoor units (YES in step S14), the friend sets the outdoor unit 1
Can communicate with the resident via the Internet (step S15), and if there is no response from any of the indoor units, the process ends.

As described above, since the indoor unit that outputs the sound is switched based on the priority order, the visitor need only wait for a response after uttering a word including the specific vocabulary once. Therefore, there is a high possibility that the visitor can talk with the desired home resident without being noticed by a person other than the desired home resident, and it is possible to minimize a simultaneous call with relatively large power consumption.

The above control can be applied to, for example, a case where the indoor units are called. In other words, when the indoor child device 4 is called from the indoor parent device 2, the priority of the output indoor unit is determined for the specific vocabulary used for the calling. Therefore, if there is no response from the indoor child unit 4 within a predetermined time, a sound may be output to the next indoor child unit 3 based on the priority order.

<Second Embodiment> Next, a second embodiment of the present invention will be described. The feature of the second embodiment is that, in a call made between indoor units, when another indoor unit is called using a specific vocabulary and there is no response from the indoor unit, the other indoor unit is provided in another indoor unit. The point is that the state of the room to which the indoor unit belongs can be seen by the video camera. According to this, for example, if a family member has a small child, sick person, or elderly person and there is no response when calling the room where the person is, the video camera is automatically activated to take an image of the room.

That is, the control device 5 has a function of activating the video camera unit of the indoor unit when there is no response when the indoor unit corresponding to the specific vocabulary is called. Also, instead of this function, if there is a response when the indoor unit corresponding to the specific vocabulary is called, the video camera unit of the indoor unit is activated, and if the specific vocabulary for which imaging is prohibited is included in the response, the video camera You may have the function which does not start a part.

Table 2 is a table showing the contents of the memory 47 storing the specific vocabulary corresponding to the indoor unit in which the video camera unit is installed and the specific vocabulary for prohibiting or permitting the imaging.

[0067]

[Table 2]

According to Table 2, the specific vocabulary "Jiro" corresponds to the indoor child unit 3 (the priority order is not particularly determined). Further, the memory 47 includes the video camera unit 23.
A shooting rejection flag for prohibiting shooting by the camera is stored. Whether or not the video camera unit 23 can be activated is determined according to the state of the shooting rejection flag, and is normally in an off state in which shooting is possible.

Then, when the controller 5 recognizes the word "Please do not copy" from a person in the room as a specific vocabulary, the rejection flag is turned on to prohibit the video camera unit 23 from capturing an image. . The other configurations of the door phone system according to the second embodiment are the same as those of the first embodiment.

Specifically, the control device 5 according to the second embodiment
4 will be described with reference to the flowchart of FIG. 4 showing the processing control of, for example, the mother speaks to the indoor parent device 2 with “Jiro”. The voice input from the indoor master unit 2 is subjected to voice recognition by the control device 5 (step T1), and is collated with the specific vocabulary stored in the memory 47 (step T1).
2). In this case, since the specific vocabulary “Jiro” is collated and detected from the mother's words, the control device 5 sends the voice “Jiro” input from the indoor parent device 2 to the indoor child device 3 (step T3). . On the other hand, when the specific vocabulary is not included, voices are output all at once as described in the first embodiment (step T4).

After sound is output to the indoor slave unit 3, the control unit 3
2 monitors the signal level in the line switching unit 31 and measures a predetermined time. Then, when there is no response from the indoor slave unit 3 within a predetermined time (YES in step T6), the control unit 32 transmits a start signal for starting the video camera unit 23 of the indoor slave unit 3 via the transmission line 6. To the control unit 22 of the indoor slave unit 3. The control unit 22 of the indoor child device 3 that has received the activation signal activates the video camera unit 23 to image the inside of the room (step T7). In this case, the control unit 22 functions as an imaging control unit.

When the video camera unit 23 of the indoor slave unit 3 is activated, the image captured by the video camera unit 23 is
The data is sent from the indoor slave unit 3 to the video display unit 18 of the indoor master unit 2 via the transmission line 6. Then, the state of the room in which the indoor slave unit 2 is installed is displayed on the video display unit 18.

As described above, when there is no response when the indoor unit corresponding to the specific vocabulary is called, the video camera unit of the indoor unit is activated, so that it is possible to see the state of the room where the indoor unit is arranged. it can. Therefore, when there is an elderly person or infant in another room and there is no response even when the room is called, it is possible to confirm what condition the room is in.

On the other hand, in step T5, if there is a response when the indoor unit corresponding to the specific vocabulary is called, that is, the mother calls the indoor child unit 3 corresponding to the specific vocabulary “Jiro”, and the indoor child unit 3 When a person in the installed room responds to the indoor child device 3, it is determined whether or not the response includes a specific vocabulary for which imaging is prohibited (step T8). Then, when the response does not include the specific vocabulary for prohibiting the imaging (NO in step T8), the video camera unit 23 of the indoor slave unit 3 is activated.

When the response includes a specific vocabulary for which image capturing is prohibited (YES in step T8), for example, a person in the room where the indoor child unit 3 is installed Do not do this. " Then, the control unit 32 recognizes that the voice is the voice from the indoor slave unit 3 and the voice recognition determination unit 3
No. 4 determines that the specific vocabulary is included in the voice. Then, the control unit 32 changes the shooting rejection flag from off to on. As a result, the video camera unit 23 installed in the indoor slave unit 3 is not activated (step T9), that is, no image is displayed on the image display unit 18 of the called indoor master unit 2. In addition, a telephone call is possible.

As described above, when there is a response when the indoor unit corresponding to the specific vocabulary is called, the video camera unit 23 of the indoor slave unit 3 is activated, and the response includes the specific vocabulary for which imaging is prohibited. To prevent the video camera unit 23 from being activated. For this reason, if a person in the room where the called indoor child unit 3 is located is performing a private task such as changing clothes or is going to do so and does not want to take an image, a specific vocabulary for which imaging is prohibited Is issued, the video camera unit 23 is not activated. Therefore, privacy can be protected.

In order to release the video camera unit 23 from the image capturing prohibited state, a predetermined specific vocabulary such as “Please copy” is spoken to the indoor child unit 3. As a result, the shooting rejection flag is turned off, and the imaging by the video camera unit 23 is allowed.

Note that the present invention is not limited to the above embodiment, and many modifications and changes can be made to the above embodiment within the scope of the present invention. For example, in the above embodiment, the door phone system is used. However, this system may be applied to a hospital, and an outdoor unit may be provided in a bureau where a nurse resides, and an indoor unit may be provided in each hospital room. Alternatively, an indoor master unit having an image display unit may be provided in a shelter or the like. Further, this system may be applied to a hotel, a ryokan, or the like, and an outdoor unit may be provided at the front and an indoor unit may be provided in each guest room.

Further, the control in the above embodiment may be applied to a normal telephone, a videophone, or the like.

Further, instead of providing the control device with a memory for storing the specific vocabulary corresponding to each indoor unit, the outdoor unit and each indoor unit may be provided with a function of recognizing voice and determining the specific vocabulary.

[0081]

As described above, according to the present invention, it is determined whether or not a voice input from an outdoor unit includes a specific vocabulary corresponding to an indoor unit, and the specific vocabulary is included in the voice. When the vocabulary is output, a sound is output to the indoor unit corresponding to the specific vocabulary.

Therefore, the visitor does not need to perform the operation of selecting a switch of a desired room from a plurality of switches corresponding to each room as in the related art, and can easily perform a desired operation without worrying about the location of the partner. Can be provided.

As a result, the number of push-button switches is increased and the size of the outdoor unit is increased, so that the appearance of the entrance is not spoiled. In addition, since a person in another room does not receive a call from a visitor, the work being performed at that time can be performed without interruption.

After outputting the sound from the outdoor unit to the indoor unit corresponding to the specific vocabulary, if there is no response from the indoor unit, the sound from the outdoor unit is sequentially output to the other indoor units. Once a specific vocabulary is issued, it is only necessary to wait for a response, and no other operations are required, resulting in a human-friendly system. In addition, the possibility that the visitor can talk with the desired home resident without being noticed by a person other than the desired home resident is increased, and simultaneous call with relatively large power consumption can be suppressed as much as possible.

When the specific vocabulary corresponding to the indoor unit is not included in the voice input from the outdoor unit, the voice is output to all the indoor units, so that the visitor is not set to the specific vocabulary. Even if the user speaks a word, the message is output to all the indoor units at the same time. If a resident is in any room where the indoor units are installed, the user can hear the voice and make a call. From this, a message or the like can be spoken without dare to specify the other party.

[0086] Then, after a voice is output to all the indoor units, if there is a response from any of the indoor units, the response voice is output to the outdoor unit, so that the visitor surely talks with a desired partner. be able to.

Further, when there is no response when the indoor unit corresponding to the specific vocabulary is called, the imaging unit of the indoor unit is activated, so that the state of the room in which the indoor unit is provided can be seen. Therefore, if there is an old man or an infant in another room, and there is no response even when the room is called, it is possible to confirm what condition the room is in.

Further, when an indoor unit corresponding to a specific vocabulary is called, if the response includes a specific vocabulary for which imaging is prohibited, the imaging means is not activated so that a person in the room can change clothes, for example. When performing or performing a private matter such as the above, the imaging unit is not activated, and the image is not displayed on the image display unit of the called indoor unit, so that privacy can be protected.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a door phone system according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a control device.

FIG. 3 is a flowchart showing processing control of a control device.

FIG. 4 is a flowchart illustrating processing control of a control device according to a second embodiment.

FIG. 5 is a diagram showing a configuration of a conventional door phone system.

[Explanation of symbols]

 Reference Signs List 1 outdoor unit 2 indoor parent unit 3, 4 indoor child unit 23 video camera unit 31 line switching unit 32 control unit 34 voice recognition determination unit

Claims (7)

[Claims] 1. A door phone system capable of talking between an outdoor unit provided outdoors and a plurality of indoor units provided indoors, wherein a voice recognition means for recognizing a voice input from the outdoor unit; Determining means for determining whether or not a specific vocabulary corresponding to each indoor unit is included in the voice; and, if the specific vocabulary is included in the voice, the indoor unit corresponding to the specific vocabulary includes the voice. And a sound output control means for outputting a sound signal. 2. The intercom system according to claim 1, wherein the voice output control means outputs the voice to all the indoor units when the specific vocabulary is not included in the voice. 3. A detection unit for detecting which indoor unit the sound input from the indoor unit is from, and the sound output control unit outputs the sound from the outdoor unit to all the indoor units. 3. The intercom system according to claim 2, wherein when a response voice from any of the indoor units is detected, the response voice is output to the outdoor unit. 4. The sound output control means outputs a sound from the outdoor unit to an indoor unit corresponding to a specific vocabulary,
The sound from the outdoor unit is output to another indoor unit when there is no response from the indoor unit.
4. The intercom system according to any one of claims 1 to 3. 5. The priority order of an indoor unit to be output for the specific vocabulary is determined.
The doorphone system as described. 6. An intercom system capable of communicating between indoor units provided in a plurality of indoor units, wherein at least one indoor unit is provided with an imaging unit for imaging an indoor room to which the indoor unit belongs. Voice recognition means for recognizing the input voice, and determination means for determining whether the voice includes a specific vocabulary corresponding to each indoor unit,
Voice output control means for outputting the voice to the indoor unit corresponding to the specific vocabulary when the specific vocabulary is included in the voice, and when there is no response when calling the indoor unit corresponding to the specific vocabulary An intercom system comprising: an imaging control unit that activates an imaging unit of the indoor unit. 7. An intercom system capable of communicating between indoor units provided in a plurality of indoor units, wherein at least one indoor unit is provided with an imaging unit for imaging an indoor room to which the indoor unit belongs. Voice recognition means for recognizing the input voice, and determination means for determining whether the voice includes a specific vocabulary corresponding to each indoor unit,
When the specific vocabulary is included in the voice, voice output control means for outputting the voice to the indoor unit corresponding to the specific vocabulary, and when there is a response when calling the indoor unit corresponding to the specific vocabulary Activating the imaging unit of the indoor unit,
An intercom system comprising: an imaging control unit that does not activate the imaging unit when a specific vocabulary for which imaging is prohibited is included in the response.