JP5065214B2 - Intercom device - Google Patents

Description

  The present invention relates to an interphone device, and more particularly to an interphone device that can collect sound generated at a place away from an entrance cordless handset.

  In order to call a resident, a human presence sensor is installed on the entrance cordless machine installed at the entrance etc., and before the visitor calls or detects an intruder, the entrance cordless camera is activated to visit There is an intercom device that takes an image of an intruder or an intruder. In such intercom devices, the image is displayed on the monitor of the main unit of the living room in response to the sensing operation of the human sensor, and at the same time, the microphone of the entrance unit starts collecting sound and is reported by the speaker of the main unit of the living room. It is comprised so that it may be sounded (for example, refer patent document 1).

  In addition, an intercom device that can monitor the surroundings of the entrance by providing a monitor button for operating the entrance slave unit in the living room master unit and activating the camera of the entrance slave unit by operating the living room master unit. Yes (see, for example, Patent Document 2). By operating this monitor button, as in the case of the motion sensor operation described above, the camera of the entrance slave unit is activated and the captured image of the camera is displayed on the monitor of the living room master unit. The microphone starts collecting sound and is reported by the speaker of the room master unit.

JP 2008-60963 A Japanese Patent Laid-Open No. 9-70037

In the case of the above conventional intercom apparatus, it is possible to monitor a suspicious person or an intruder by activating the camera and microphone of the front door unit even if the call button is not pressed. However, since the microphone of the entrance unit is installed to collect the visitor's voice well when calling with the visitor, the voice of the visitor near the entrance unit is collected well. However, when the presence sensor is activated or the sound is collected by operating the monitor button, the intruder is not near the entrance cordless machine and acts quietly. The intruder's movements could not be collected.
In addition, when the voice is low, it is possible to make a report by raising the volume on the room base unit side, but it is difficult to confirm the sound at a place away from the entrance unit by volume control.

  SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide an interphone device in which the microphone sensitivity during a call is different from the microphone sensitivity when operated for other purposes such as intruder monitoring.

In order to solve the above-mentioned problems, the invention of claim 1 includes an entrance cordless handset that is installed at a front door or the like and has a function of calling a resident and making a call, and a call set up in a dwelling unit for calling from the entrance cordless handset. In an intercom apparatus having a living room base unit having a function of responding, the entrance unit includes a human sensor for detecting a visitor or an intruder, and sensitivity control means for changing the sensitivity of a built-in microphone. On the other hand, in the room master unit, the sound control that causes the microphone to collect the sound collected by the microphone in response to the calling operation of the entrance unit or the sensing operation of the human sensor And the sensitivity control means collects the microphone with a predetermined first sensitivity when the entrance unit is called, and higher than the first sensitivity when the human sensor performs a sensing operation. It is characterized by collecting sound with the second sensitivity That.
According to this configuration, since the microphone sensitivity when the human sensor is activated is higher than the microphone sensitivity at the time of calling, it is possible to hear a small sound or voice. Therefore, even when there is an intruder at a position away from the entrance cordless handset, it is possible to hear a sound and a sound, and the crime prevention property is improved. In addition, it is possible to implement this configuration only by exchanging only a cheap entrance child device compared to the living room parent device, and it can be changed to an interphone with improved crime prevention property at a lower cost.

According to a second aspect of the present invention, there is provided an interphone apparatus according to the first aspect of the present invention, wherein the entrance cordless handset includes a camera for capturing an image of a visitor, and the living room base unit includes a monitor for displaying an image captured by the camera. In other words, it has a display control means for activating the camera and displaying it on a monitor when the human sensor performs a sensing operation.
According to this configuration, when there is an intruder, it can be monitored by video together with sound, and crime prevention can be further improved.

The invention of claim 3 has a camera installed at the entrance or the like for imaging a visitor, and has a function of calling a resident and making a call, and an installation of the camera installed in a dwelling unit. In an intercom device that has a monitor that displays captured images and a room base unit that has a function of responding to calls from the door station, the room base unit activates a camera and a microphone built in the door station. And a sensitivity control means for changing and controlling the sensitivity of the built-in microphone. The sensitivity control means, when the entrance handset is operated for calling, has a predetermined first microphone. When the monitor button is operated, sound is collected with a second sensitivity higher than the first sensitivity.
According to this configuration, since the microphone sensitivity when the entrance cordless handset is activated by the operation of the living room master is higher than the microphone sensitivity at the time of the call, it is possible to hear a small sound or voice. Therefore, even if there is an intruder at a position away from the entrance cordless handset, it is possible to hear a sound and a sound, and the crime prevention property is improved. In addition, it is possible to implement this configuration only by exchanging only a cheap entrance child device compared to the living room parent device, and it can be changed to an interphone with improved crime prevention property at a lower cost.

The invention of claim 4 has a camera installed at the entrance or the like for imaging a visitor, and has a function of calling a resident to make a call, and an imaging device installed in the dwelling unit. In an intercom apparatus having a monitor that displays an image and a living room parent device that has a function of responding to a call from an entrance child machine, the living room parent device zooms / wides the camera-captured image displayed on the monitor or While having a camera operation unit for pan / tilt operation, the entrance unit includes a sensitivity control unit for changing and controlling the sensitivity of the built-in microphone, and the sensitivity control unit is configured so that when the entrance unit is called, A microphone is collected with a predetermined first sensitivity, and when the camera operation unit is operated in a call state, the microphone sensitivity of the entrance cordless handset is collected with a second sensitivity higher than the first sensitivity. To do.
According to this configuration, even in a call state, if the zoom / wide operation or the pan / tilt operation is performed, the microphone sensitivity increases, so that it is possible to hear a small object sound or voice. Therefore, even when a suspicious person or an intruder is present at a position away from the entrance cordless handset, it is possible to hear sound or the like, and the crime prevention property is improved. In addition, it is possible to implement this configuration only by exchanging only a cheap entrance child device compared to the living room parent device, and it can be changed to an interphone with improved crime prevention property at a lower cost.

The invention of claim 5 has a camera installed at the entrance or the like for imaging a visitor, and has a function of calling a resident to make a call, and an imaging device installed in the dwelling unit. In an interphone device having a monitor that displays video and a living room base unit that has a function of responding to calls from the front door unit, the room base unit starts a camera and a microphone built in the front door unit At least one of a monitor button and a human sensor that activates a microphone by detecting a visitor or an intruder on the entrance cordless handset, and a sensitivity control means for changing the sensitivity of the microphone at least in two steps are provided on the entrance cordless handset. The sensitivity control means activates the microphone with the lowest sensitivity only when the entrance unit receives a call operation, and in the case of other sound collecting operations such as a monitor button operation or a human sensor operation, it is higher than the call operation. Characterized thereby collected in degrees.
According to this configuration, the microphone performs a sound collecting operation with high sensitivity except for the calling operation from the entrance cordless handset. Therefore, it is possible to collect sound with high sensitivity and improve crime prevention unless a person is surely near the entrance unit. In addition, it is possible to implement this configuration only by exchanging only a cheap entrance child device compared to the living room parent device, and it can be changed to an interphone with improved crime prevention property at a lower cost.

According to the present invention, since the microphone sensitivity when the human sensor is operated is higher than the microphone sensitivity at the time of calling, it is possible to hear a small sound or voice. Therefore, even when there is an intruder at a position away from the entrance cordless handset, it is possible to hear a sound and a sound, and the crime prevention property is improved. In addition, the present invention can be implemented by replacing only an inexpensive entrance child device as compared with the living room parent device, and can be changed to an interphone with improved crime prevention property at a low cost.
In addition, even when viewing the video around the entrance by operating the master unit in the room, since the sound is collected with high microphone sensitivity, it is possible to hear small noises and sounds. Therefore, even when an intruder is present at a position away from the entrance cordless handset, it is possible to hear sound and the like, and the crime prevention performance is improved.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of the invention will be described in detail with reference to the drawings. FIG. 1 is a configuration diagram of an intercom device according to the present invention. 1 is an entrance cordless device installed outside a dwelling unit such as an entrance to call a resident and make a call, and 2 is an entrance cordless device 1 installed inside the dwelling unit. 3 is a sensor camera that is provided with a human sensor for detecting the approach of a person and picks up an image when the person approaches. The camera 3 and the room master unit 2 are connected by transmission lines L1 and L2, respectively.

  FIG. 2 is a circuit block diagram of the entrance unit 1, a call button 6 for calling a resident, a camera 7 and a camera drive circuit 7 a for imaging a visitor, video processing for performing video signal modulation processing, and the like. Circuit 8, video interface (video IF) 9 for transmitting video signal, handset microphone 10 and microphone drive circuit 10a for calling, microphone amplifier 11 for amplifying audio signal, calling and warning sound etc. The handset speaker 12 and the speaker amplifier 12a for reporting, the call interface (call IF) 13 for forming a call path with the living room base unit 2, the human sensor 14 for detecting the approach of a person, and the entrance handset 1 as a whole A data interface (data IF) 16 that enables communication between the slave CPU 15 to be controlled and the room master 2, and a video signal, an audio signal, and data are mixed / And a slave unit signal mixing separation circuit 17 or the like for releasing.

  FIG. 3 is a circuit block diagram of the office master unit. The call button 19 for responding to the call, the LCD 20 and the LCD control circuit 20a as a monitor for displaying the video imaged by the camera 7, and the video image for receiving the video signal. Interface (video IF) 21, base unit microphone 22 and microphone amplifier 22a for making a call, base unit speaker 23 and speaker amplifier 23a for making a call and issuing an alarm, notification sound for generating a ringing tone and an alarm sound The generation circuit 24, the call interface (call IF) 25 for forming a call path with the entrance child device 1, the camera operation button 26 for performing image operations such as zoom / wide and pan / tilt of the camera 7, the camera 7 and the child device Communication is possible between the monitor button 27 that activates the microphone 10, the master CPU 28 that controls the entire living room master 2, and the entrance slave. It includes a data interface (data IF) 29, a video signal to the audio signal, a master unit signal mixing separation circuit 30 or the like for mixing / separation data.

  As shown in FIG. 1, the sensor camera 3 includes a microphone 35 and a speaker 36 in addition to the camera 33 and the human sensor 34. When the camera 33 starts imaging by receiving the operation of the human sensor 34, the microphone 35 is also active, and the room master unit 2 is configured to be able to confirm sound and sound in accordance with the video. Further, when a telephone call operation is subsequently performed by the living room master unit 2, the speaker 36 is also activated, and is configured to be able to talk with a person approaching.

  The intercom apparatus configured as described above operates as follows. First, the call / answer operation will be described. When a visitor presses down the call button 6 of the front cordless handset 1, a call signal is transmitted to the room base unit 2 through the data IF 16, the handset signal mixing / separating circuit 17, and the transmission line L1 under the control of the handset CPU 15. Further, the camera 7 is activated, and the captured image is transmitted to the living room master unit 2 via the video processing circuit 8, the video IF 9, the slave unit signal mixing / separating circuit 17, and the transmission line L1.

  In the base unit 2, the received call signal and video signal are separated by the base unit signal mixing / separating circuit 30, and the call signal is transmitted to the base unit CPU 28 via the data IF 29. When receiving the call signal, the base unit CPU 28 controls the notification sound generating circuit 24 to generate a ringing tone, and reports the ringing sound from the base unit speaker 23 through the speaker amplifier 23a. Further, the LCD control circuit 20a is controlled so that the video signal separated by the master signal mixing / separating circuit 30 is displayed on the LCD 20 via the video IF 21 and the LCD control circuit 20a.

  When the call button 19 is operated by a resident who recognizes the ringing sound reported from the master speaker 23, the call signal is transmitted to the data IF 29, the master signal mixing / separating circuit 30, and transmitted by the master CPU 28 that detects the operation. A call signal is transmitted to the front door 1 via the line L1. At the same time, the base unit CPU 28 activates the base unit microphone 22 and transmits the collected sound to the front handset unit 1 via the microphone amplifier 22a, the call IF 25, the base unit signal mixing / separating circuit 30, and the transmission line L1.

The call signal transmitted to the entrance slave unit 1 is transmitted to the slave unit CPU 15 via the slave unit signal mixing / separating circuit 17 and the data IF 16. Upon receiving the call signal, the handset CPU 15 activates the handset microphone 10 by setting the amplification level of the microphone amplifier 11 to “sensitivity = medium”, and the collected voice is the call IF 13, the handset signal mixing / separating circuit 17, and the transmission line. It is transmitted to the living room master unit 2 via L1.
In addition, the voice transmitted from the living room master unit 2 is separated by the slave unit signal mixing / separating circuit 17 and output from the slave unit speaker 12 via the call IF 13 and the speaker amplifier 12a. In this way, a communication path is formed between the living room master unit 2 and the entrance slave unit 1 to establish a call.

  When the slave unit microphone 15 receives the calling operation and activates the slave unit microphone 10 as described above, the slave unit microphone 15 collects sound with “sensitivity = medium” (first sensitivity), which is the standard sensitivity. When the microphone amplifier 11 is controlled so that another operation or signal is received, the handset microphone 10 collects sound with “sensitivity = high” (second sensitivity) higher than “sensitivity = medium”. It is set to control the microphone amplifier 11.

However, in the state where the sound collected by the handset microphone 10 is output in the living room base unit 2 and the captured image of the camera 7 is displayed on the LCD 20, the camera operation button 26 performs the zoom / wide operation or the pan / tilt operation. Then, the amplification degree of the microphone amplifier 11 is changed to “sensitivity = high”, and the handset microphone 10 collects sound with high sensitivity.
Specifically, in response to the operation of the camera operation button 26, the master CPU 28 sends a zoom / wide signal or a pan / tilt signal (hereinafter referred to as a camera operation signal). This camera operation signal is transmitted to the front door unit 1 via the data IF 29, the base unit signal mixing / separating circuit 30, and the transmission line L1.

In the entrance slave unit 1, this camera operation signal is transmitted to the slave unit CPU 15 via the slave unit signal mixing / separating circuit 17 and the data IF 16, and the slave unit CPU 15 performs zoom / wide operation and the like of the camera 7 being imaged. . Specifically, the slave CPU 15 controls the video processing circuit 8 based on the camera operation signal, creates zoom / wide video data or pan / tilt video data from the video data captured by the camera 7, and generates a camera operation signal. A desired video based on the above is generated and transmitted to the room master unit 2.
The video signal generated and sent out by the video processing circuit 8 in this way is displayed on the LCD of the room master unit 2 through the same route as the call operation. At the same time, when receiving the camera operation signal, the slave unit CPU 15 changes the amplification degree of the microphone amplifier 11 to “sensitivity = high” and continuously sends the collected sound toward the room master unit 2.

In this way, even when a call is in progress, if the visitor moves away from the entrance or the standing position is unnatural, the microphone sensitivity is interlocked when the camera is operated to image the visitor. Go up. In this way, it is possible to hear small noises and sounds, and the crime prevention property is improved.
In addition, if there is a base unit that allows camera zoom / wide operation, etc., this configuration can be implemented simply by replacing only a cheaper entrance unit compared to the base unit. It can be changed to an improved intercom.

  Note that even when the sensor camera 3 senses the approach of a person and starts imaging, the captured image of the sensor camera 3 is displayed on the LCD 20 of the living room master unit 2 and the voice and sound collected by the microphone 35 are also reported. In this case as well, the handset microphone 10 of the entrance handset 1 may be activated with “sensitivity = high” and the room base unit 2 may report the sound together with the microphone 35 of the sensor camera 3.

Next, the operation when the human sensor 14 of the front door 1 detects the approach of a person will be described. When the human sensor 14 detects the approach of a person such as a suspicious person in a standby state where the intercom device does not operate, a sensing signal is output to the slave CPU 15. The slave CPU 15 receives this sensing signal and transmits a sensor operation signal to the living room master 2. Further, the handset microphone 10 and the camera 7 are activated to transmit the collected sound and the video around the entrance. However, in response to the operation of the human sensor 14, the slave CPU 15 activates the slave microphone 10 by controlling the amplification degree of the microphone amplifier 11 to “sensitivity = high”.
The sensor operation signal is transmitted to the living room master unit 2 via the data IF 29, the slave unit signal mixing / separation circuit 17, and the transmission line L1, and the audio signal and the video signal are transmitted to the living room base unit 2 in the same manner as the above-described calling operation. The

  In the living room main unit 2, the main unit CPU 28 that has received the sensor operation signal controls the notification sound generation circuit 24 to generate an alarm sound from the main unit speaker 23. Then, the transmitted sound is output from the parent speaker 23 and the transmitted captured video is displayed on the LCD 20.

As described above, since the microphone sensitivity when the human sensor is operated is higher than the microphone sensitivity at the time of calling, it is possible to hear a small sound or voice. Therefore, even when there is an intruder at a position away from the entrance cordless handset, it is possible to hear a sound and a sound, and the crime prevention property is improved. Moreover, it can monitor by an image | video with an audio | voice, and can further improve crime prevention.
Furthermore, this configuration that increases the sensitivity of the handset microphone in response to the operation of the human sensor can also use a conventional room base unit as a base unit, and only the entrance unit that is cheaper than the base unit can be used. It is possible to implement this configuration simply by exchanging and interchanging the intercom with improved security.

  In this case, when a resident who recognizes the alarm sound and looks at the LCD 20 operates the camera operation button 26 to perform the zoom / wide operation, the camera 7 being picked up performs the zoom / wide operation. In addition, the handset CPU 15 may control the microphone amplifier 11 so that the handset microphone 10 operates with a sensitivity higher than “sensitivity = high” based on the zoom / wide signal. By operating in this way, it is possible to hear even smaller noises, which is effective for crime prevention.

  When the resident moves the monitor button 27 of the room master unit 2, the operation is as follows. When the monitor button 27 is operated in the standby state, the master CPU 28 transmits a monitor signal to the front door slave 1 via the data IF 29, the master signal mixing / separating circuit 30, and the transmission line L1. In the entrance handset 1, the monitor signal is transmitted to the handset CPU 15 via the handset signal mixing / separating circuit 17 and the data IF 16.

  The slave CPU 15 activates the camera 7 in response to the monitor signal, and transmits the captured video to the living room master 2 via the video processing circuit 8, the video IF 9, the slave signal mixing / separating circuit 17, and the transmission line L1. Further, the amplification factor of the microphone amplifier 11 is controlled to “sensitivity = high” to activate the child device microphone 10, and the voice collected from the child device microphone 10 is collected into the microphone amplifier 11, the call IF 13, and the child device signal mixing / separating circuit. 17. Transmit to room base unit 2 via transmission line L1.

  In the base unit 2, the sound collected by the handset microphone 10 is output from the base unit speaker 23 by the same operation as that of the calling call, and the camera 7 image is displayed from the LCD 20. Thereby, the image | video and audio | voice of the entrance child machine 1 vicinity can be viewed. At this time, the handset speaker 12 is in an off state, and the sound collected by the base handset microphone 22 is not output from the front handset 1.

As described above, when the entrance cordless handset is activated by the operation of the living room base phone, the microphone sensitivity is higher than the microphone sensitivity at the time of the call, so that it is possible to hear a small sound or voice. Therefore, even when there is an intruder at a position away from the entrance cordless handset, it is possible to hear a sound and a sound, and the crime prevention property is improved. In addition, if it is a base unit with a monitor button, the conventional base unit can be used, and it is possible to implement this configuration by simply replacing an inexpensive entrance unit, improving security at low cost It can be changed to the intercom.
As described above, since the microphone collects sound with “sensitivity = high” except for the call operation from the front door unit, the voice is heard with high sensitivity unless there is a certain person near the front door unit. Sound can be collected and crime prevention can be improved.

  When the resident who is viewing the LCD 20 on which the captured image of the camera 7 is displayed is operated by the operation of the monitor button 27 and the camera operation button 26 is operated to perform the zoom / wide operation, the camera 7 being imaged is zoomed. The microphone amplifier 11 may be controlled so that the slave unit microphone 15 operates at a higher sensitivity than “sensitivity = high” based on the zoom / wide signal. By operating in this way, it is possible to hear even smaller noises, which is effective for crime prevention.

In the above-described embodiment, “sensitivity = medium” and “sensitivity = high” are implemented by varying the amplification degree of the microphone amplifier 11 of the front door 1, but a sensitivity variable amplifier is provided separately from the microphone amplifier 11. Alternatively, the sensitivity may be made variable by changing the impedance of the microphone peripheral circuit.
Further, in the above-described embodiment, the configuration has been described in which the camera 7 itself of the front door unit 1 is fixed and the imaging direction is changed by electronic processing of the captured image in the pan / tilt operation. The pan / tilt operation may be mechanically operated by providing a mechanism. In the handset microphone 10, the sound collection direction may be changed by selecting from a plurality of fixed microphones having different sound collection directions or by electronic processing of sounds collected simultaneously from the plurality of fixed microphones.

It is a block diagram which shows an example of embodiment of the intercom apparatus which concerns on this invention. It is a circuit block diagram of an entrance child machine. It is a circuit block diagram of an office master.

Explanation of symbols

  1 .. Entrance cordless handset, 2 .. Living room master phone, 6 .. Call button, 7 .. Camera, 10 .. Handset microphone, 12 .. Handset speaker, 14 .. Human sensor, 15. Machine CPU (sensitivity control means, display control means), 19 .... call button, 20..LCD, 22..master microphone, 23..master speaker, 26..camera operation button, 27..monitor button, 28. Master CPU (report sound control means).

Claims (5)

An intercom device having an entrance cordless handset installed at a front door or the like and having a function of calling a resident and making a call, and a living room base set installed in a dwelling unit and responding to a call from the entrance cordless handset In
The entrance unit includes a human sensor for detecting a visitor or an intruder, and sensitivity control means for changing the sensitivity of a built-in microphone, while the living room base unit includes the entrance unit. In response to a call operation or a sensing operation of the human sensor, it comprises a sound control means for reporting a sound collected by the microphone from a speaker built in the living room base unit,
The sensitivity control means collects the microphone with a predetermined first sensitivity when the entrance cordless handset is called, while when the human sensor performs a sensing operation, the sensitivity control means uses the first sensitivity. An intercom apparatus that collects sound with a high second sensitivity. In the intercom device provided with a camera for capturing the visitor by the entrance cordless handset and a monitor for displaying the captured image of the camera by the living room base unit,
The intercom apparatus according to claim 1, further comprising display control means for activating the camera and displaying on the monitor when the human sensor performs a sensing operation. An entrance cordless handset that has a camera installed at the entrance or the like and that has a function of calling a resident and making a call, and a monitor that is installed in a dwelling unit and displays an image captured by the camera. In an intercom apparatus having a living room master unit having a function of responding to a call from the entrance cordless handset,
The living room master unit includes a monitor button that activates a microphone built in the camera and the entrance unit, and the entrance unit includes sensitivity control means for changing and controlling the sensitivity of the built-in microphone,
The sensitivity control means collects the microphone with a predetermined first sensitivity when the entrance device is called, and when the monitor button is operated, the sensitivity control means sets the microphone higher than the first sensitivity. An intercom device that collects sound with a sensitivity of 2. An entrance cordless handset that has a camera installed at the entrance or the like and that has a function of calling a resident and making a call, and a monitor that is installed in a dwelling unit and displays an image captured by the camera. In an intercom apparatus having a living room base unit having a function of responding to a call from the entrance cordless handset,
The living room master unit has a camera operation unit for performing zoom / wide or pan / tilt operations on the camera image displayed on the monitor, while the entrance unit has a sensitivity for changing and controlling the sensitivity of the built-in microphone. With control means,
The sensitivity control means picks up the microphone with a predetermined first sensitivity when the entrance device is called, and when the camera operation unit is operated in a call state, the microphone of the entrance device An intercom apparatus that collects sound with a second sensitivity higher than the first sensitivity. An entrance cordless handset that has a camera installed at the entrance or the like and that has a function of calling a resident and making a call, and a monitor that is installed in a dwelling unit and displays an image captured by the camera. In an intercom apparatus having a living room master unit having a function of responding to a call from the entrance cordless handset,
At least a monitor button that activates the camera and a microphone built in the entrance slave unit in the living room master unit, and a human sensor that activates the microphone by detecting a visitor or an intruder in the entrance slave unit Provided with a sensitivity control means for changing the sensitivity of the microphone in at least two stages,
The sensitivity control means activates the microphone with the lowest sensitivity only when the entrance handset receives a call operation, and in the case of another sound collecting operation such as the monitor button operation or the human sensor operation, An intercom device that collects sound with higher sensitivity than during operation.

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