JP2019036866A - Intercom system - Google Patents

Abstract

To provide an intercom system capable of identifying an intruder even if a parent machine is removed by recording a visitor or intruder video at a place other than the parent machine.SOLUTION: In addition to an image captured by handset camera 12 provided to handset 1 to call a resident, in order to save a captured image of a parent machine camera 24 provided in a parent machine 2 for responding to a call, a handset storage unit 14 is provided in the handset 1 in addition to a parent machine storage unit 27. In addition, when an extension parent machine 3 is connected to the parent machine 2, an extension parent machine storage unit 37 is also provided in the extension parent machine 3 to enable storage of images.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an intercom system in which a visitor calls a resident and makes a call, and more particularly to an intercom system having a security function with a camera and a recording function thereof.

  An interphone system having a monitor that displays a captured image on a parent device installed in a dwelling unit with a camera installed on a child device installed at the entrance is popular because it is effective for crime prevention. Some intercom systems having such a crime prevention function have an absence mode function for automatically recording a visitor's video when absent (see, for example, Patent Document 1).

JP 2006-94020 A

  The interphone system with the automatic recording function described above is effective for crime prevention because it saves the visitor's video when it is away, so it is recorded naturally when a suspicious person calls it. There is a case where the recording function is recognized, and there is a problem that the main unit with the video storage unit is removed so that it cannot be identified from the stored video and brought back or destroyed, and the precious recording function is not useful. there were.

  Therefore, in view of such problems, the present invention provides an intercom system that can identify an intruder even if a parent device is removed by storing a visitor video in a place other than the parent device. The purpose is that.

In order to solve the above problems, the invention of claim 1 has a function of calling a resident to make a call and responding to a call from the slave unit and a slave unit having a slave camera for imaging a visitor. An interphone system having a function to perform and a master unit having a monitor for displaying a captured image of a slave camera, wherein the slave unit includes a first video storage unit for storing the video, and the captured image of the slave camera Is stored in the first video storage unit, and the master unit is provided with the video control unit.
According to this configuration, since the image captured by the slave camera is stored in the slave unit, even if the master unit is removed and destroyed or taken away by a suspicious person who has entered, it is possible to check the image later, and It can help identify people and improve security functions.

According to a second aspect of the present invention, in the configuration according to the first aspect, the master unit has an answering setting unit that sets an answering mode for automatically saving a captured image of the slave camera when the slave unit is operated to call, The control unit stores the captured video of the slave camera in the first video storage unit when the slave unit is called and operated in the absence mode.
According to this configuration, when a call operation is performed by a visitor when the user is away, the captured image of the slave camera is automatically stored and stored in the first video storage unit, so that the suspicious person's video that has been called can be left.

According to a third aspect of the present invention, in the configuration according to the first aspect, the parent device includes a parent camera that images the surroundings of the parent device, and the video control unit stores the captured image of the parent camera in the first video. It is characterized by being performed in the storage unit.
According to this configuration, since the captured image of the parent device camera is stored in the child device, even if the parent device is removed and destroyed or taken away by a suspicious person who has entered, the images captured by the parent device camera up to that point are not captured. Since it is stored in the machine, it is possible to check the video, help to identify intruders and improve the security function.

According to a fourth aspect of the present invention, in the configuration according to the third aspect, the master unit has an answering setting unit for setting an answering mode for automatically saving a captured image of the slave device camera when the slave unit is operated for calling. The control unit stores the captured image of the parent camera in the first video storage unit when the slave unit is called up in a state where the absence mode is set.
According to this configuration, if there is a visitor at the time of absence, the captured image of the parent camera is saved, so that when a suspicious person enters the dwelling unit, the image can be left.

According to a fifth aspect of the present invention, in the configuration according to the third aspect, the parent device sets an absence mode setting unit for setting an absence mode in which a captured image of the child device camera is automatically saved when the child device is called, and a human sensor The video control unit stores the captured video of the parent camera in the first video storage unit when the human sensor performs a sensing operation in a state where the absence mode is set.
According to this configuration, when the human sensor detects the presence of the suspicious person, the captured image of the parent camera is stored, so that the image of the suspicious person who has entered the dwelling unit can be reliably left.

According to a sixth aspect of the present invention, in the configuration of the fifth aspect, the base unit has a temporary storage unit that temporarily stores the captured video of the base unit camera, and when the video control unit is set to the absence mode, the base unit Starts saving the captured image of the camera to the temporary storage unit, and after that, when the motion sensor senses, takes the captured image from the temporary storage unit and saves it in the first image storage unit. In addition, the captured image of the parent camera after the sensing operation is also stored in the first image storage unit.
According to this configuration, since the video stored in response to the motion of the human sensor is a video from a predetermined time before the human sensor senses, there is a probability that the video that can identify the suspicious person is stored. high.

The invention according to claim 7 is the configuration according to claim 5 or 6, wherein the master unit includes an external communication unit that communicates with a predetermined portable terminal, and a communication control unit that controls communication with the portable terminal. The control unit is characterized in that, when the human sensor performs a sensing operation, at least notification of occurrence of abnormality among notification of occurrence of abnormality and transmission of a captured image of the parent camera is sent to the mobile terminal.
According to this configuration, it is possible to notify the suspicious person's intrusion to the portable terminal carried by the resident, and even if the resident is out, the suspicious person's intrusion can be recognized quickly, and there is no delay. It becomes possible.

According to an eighth aspect of the present invention, in the configuration according to any one of the third to seventh aspects, an external camera that captures a location different from the parent camera is connected to the parent device. The imaged video of the external camera is stored in conjunction with the storage of the captured video.
According to this configuration, not only the image around the parent device imaged by the parent camera, but also the imaged image of the external camera that images a different location is stored, so that a wide range of images can be stored and the image of the suspicious person captured. Can be left with certainty.

According to a ninth aspect of the present invention, in the configuration according to any one of the first to seventh aspects, an extension master unit having a function of responding to a call from the slave unit is connected to the master unit in the same manner as the master unit. The expansion master unit is provided with a second video storage unit for storing video, and the video control unit links the same video to the second video storage unit in conjunction with video storage to the first video storage unit. Is also preserved.
According to this configuration, since the video is stored not only in the slave unit but also in the additional master unit, the video can be left even if the slave unit is destroyed, and the probability of saving the video is increased.

A tenth aspect of the present invention is the configuration according to any one of the first to ninth aspects, wherein the slave unit is provided with a disconnection detection unit that detects a disconnection of a transmission line connecting the slave unit and the master unit. The disconnection detection unit is characterized in that an alarm sound is issued from the slave unit when the disconnection is detected.
According to this configuration, when the master unit is removed, an alarm sound is reported from the slave unit, so that the occurrence of an abnormality can be notified to the vicinity, which is effective in repelling suspicious persons and preventing crimes.

  According to the present invention, since the image captured by the parent device camera is stored in the child device, even if the parent device is removed and destroyed or taken away by a suspicious person who has entered, the image captured by the parent device camera until then is not captured. Since it is stored in the machine, you can check the video. Therefore, it is useful for identifying an intruder and improving the crime prevention function.

It is a block diagram which shows an example of an intercom system, and has shown each apparatus with the circuit block diagram. It is a circuit block diagram of the main | base station which shows the other example of an intercom system.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram of an intercom system according to the present invention, in which 1 is installed at a front door, and a visitor calls a visitor to call a resident, and 2 is installed in a dwelling unit. A master unit 3 for responding to a call is an additional master unit that is connected to the master unit 2 and has a function of responding to a call from the slave unit 1. Reference numeral 5 denotes a mobile terminal such as a smartphone with which the parent device 2 communicates via the public communication network N.

  The handset 1 includes a call button 11 for performing a call operation, a handset camera 12 for capturing an image of a visitor, a handset communication unit 13 having a microphone and a speaker for making a call, and a handset storage unit (first number) for storing video. 1 image storage unit) 14, a slave unit image processing unit 15 that performs FM modulation or the like to transmit the captured image of the slave unit camera 12 to the master unit 2, a slave unit CPU 16 that controls the slave unit 1, and communication with the master unit 2 A slave unit communication IF 17, a storage battery 18 as an emergency power source, and the like.

  The base unit 2 captures a call button 21 for responding to a call, a base unit operation unit 22 for performing various operations, a base unit call unit 23 having a microphone and a speaker for calling, and the surroundings of the base unit 2 such as a room. The main device camera 24, the child device camera 12 and the main device camera 24, the monitor 25 for displaying the stored image and various information, the main device image processing unit 26 for generating the image to be displayed on the monitor 25, the image Base unit storage unit 27 for storing, human sensor 28 for detecting approach of a person, base unit CPU 29 for controlling base unit 2, base unit communication IF 30 for communicating with handset 1 and extension base unit 3, communication with portable terminal 5 External communication IF (external communication unit) 41 and the like.

  The extension base unit 3 includes a call button 31 for answering a call, an extension base unit call unit 33 having a microphone and a speaker for calling, a monitor 35 for displaying video and various information, and a video to be displayed on the monitor 35. Additional parent device video processing unit 36 to be generated, additional parent device storage unit (second image storage unit) 37 for storing images, additional parent device CPU 39 for controlling the additional parent device 3, and additional parent device communication for communicating with the parent device 2 IF40 etc. are provided.

  The slave unit 1 and the master unit 2, and the master unit 2 and the extension master unit 3 are connected by transmission lines L1 and L2, respectively. The master unit 2 communicates with the portable terminal 5 via the public communication network N. The master unit 2 and the extension master unit 3 are connected to a commercial power source and are supplied with power, but the slave unit 1 is supplied with power from the master unit 2 via the transmission line L1.

The intercom system configured as described above operates as follows. However, since the call from the slave unit 1 and the response from the master unit 2 or the extension master unit 3 are the same as those in the prior art, the description thereof will be omitted. Here, the operations of the slave unit camera 12 and the master unit camera 24 and the captured video are described. The explanation will focus on the preservation of
First, when the handset 1 is called in the normal mode, the handset camera 12 is activated, and the captured image of the handset camera 12 is displayed on the base unit 2, and the calling operation is performed on the base unit 2. However, the video at this time is not saved, but when the master unit operation unit 22 is operated and a recording operation is performed, the video displayed on the monitor 25 is saved in the master unit storage unit 27 for a certain period of time. The stored video is displayed on the monitor 25 by the operation of the parent device 2.

Next, a case where the base unit operation unit 22 is operated to set the absence mode will be described. When the base unit operation unit 22 is operated and set for absence, the system shifts to the absence mode.
When a call operation is received in the absence mode, the handset camera 12 is activated and the captured video is automatically saved. However, here, when the absence mode is set, in addition to the automatic recording operation, the human sensor 28 provided in the main unit 2 becomes active, and when the detection operation is performed, the main unit camera 24 starts imaging, A captured image is recorded. Furthermore, the occurrence of abnormality is notified to the registered mobile terminal 5.

  Specifically, when the handset 1 is called in the absence mode, a captured image of the handset camera 12 is transmitted to the base unit 2 together with a call signal. The master CPU 29 that has received the calling signal causes the calling sound to be displayed on the monitor 25 as in the normal mode. Then, recording (video saving) is started. However, in addition to the parent device storage unit 27, the recording is simultaneously performed on the child device storage unit 14 and the extension parent device storage unit 37 of the extension parent device 3, and both storage units have the same image captured by the child device camera 12. The video is saved. This recording is performed for a certain time (for example, 1 minute).

At this time, if the visitor who made the call is a malicious suspicious person such as a vacant nest and the absence is confirmed by the absence of a response, the following operation will continue to be carried out when entering the dwelling unit through a window or the like. The
When a suspicious person who has entered the dwelling unit enters the room in which the parent device 2 is located, the human sensor 28 is detected because it is in an active state. Then, under the control of the master CPU 29, the master camera 24 starts imaging and the captured video is stored. Also in this case, the image is stored at three locations of the parent device 2, the extension parent device 3, and the child device 1 in the same manner as the captured image of the child device camera 12.
Note that the extension master unit 3 may not be provided. In this case, the video is stored at two locations of the master unit 2 and the slave unit 1.

Further, in the absence mode state, in response to the sensing operation of the human sensor 28, the master CPU 29 notifies the mobile terminal 5 carried by a pre-registered resident through the public communication network N of the occurrence of an abnormality. Then, the captured image of the parent camera 24 is transmitted.
Notification of the occurrence of an abnormality is sent by e-mail using the Internet, and for example, a message such as “A suspicious person has entered. Please be careful” is sent. The video attached to the email is displayed.
Note that the information attached to the mail notifying the occurrence of abnormality may be an image with little data instead of a video, or a video or an image may not be attached. Even if there is no video or image information, the resident who has received the notification can grasp that the suspicious person has entered the home.

After that, when the suspicious person who has entered notices the presence of the master unit 2 being recorded and removes the master unit 2 from the wall in order to take it away, the following operation is further performed.
When the base unit 2 is removed and the connection with the handset 1 is disconnected, the handset CPU 16 detects this, switches the power source to the storage battery 18 as an emergency power source, and buzzes from the speaker of the handset unit 13. An alarm sound such as a sound is issued to notify the neighborhood. At this time, the slave CPU 16 determines the disconnection from the change in the impedance of the transmission line L1, for example.
The storage battery 18 is in a state of being charged by receiving power from the parent device 2 via the transmission line L1. Further, the base unit 2 may be provided with an emergency power source and be similarly activated.

As described above, since the captured images of the slave camera 12 and the master camera 24 are stored not only in the master device 2 but also in the slave device 1 and the extension master device 3, the storage probability of the video is increased, and the master device is detected by the invading suspicious person. Even if 2 is removed and destroyed or taken away, the video can be confirmed later, which can help to identify an intruder and improve the security function.
In addition, since the captured image of the slave camera 12 is automatically saved when the absence mode is set, the image of the suspicious person who has performed the call operation can be left in the slave storage unit 14 and the extension master storage unit 37. Since the slave camera 12 is in the off state in the standby state, power saving is sufficient.
Further, in the absence mode state, when the human sensor 28 detects the presence of a suspicious person, the captured image of the master camera 24 is saved, so that the image can be left when a suspicious person enters the dwelling unit. In addition, since the base camera 24 is normally in an off state, it can save power.
Further, when the master unit 2 is removed, an alarm sound is reported from the slave unit 1, so that the occurrence of an abnormality can be notified to the vicinity, which is effective for repelling suspicious persons and preventing crimes.

  In addition, the recording of the main camera 24 is started in response to the sensing operation of the human sensor 28 provided in the parent device 2, but the human sensor 28 may not be provided, and in this case, the call button similar to the child camera 12 is used. 11, recording of the captured image of the parent camera 24 may be started. By doing so, even if a suspicious person enters the dwelling unit at the time of absence, the image can be left, and the intruder can be specified and the crime prevention function can be improved as in the case where the human sensor 28 is provided.

  FIG. 2 shows another form of the intercom system, and shows a circuit block of the base unit 2. The slave unit 1 and the extension master unit 3 are the same as those in FIG. The base unit 2 in FIG. 1 is provided with a temporary storage unit (temporary storage unit) 42 for temporarily storing video in the base unit 2, a camera connection IF 43, and an external camera 6 via a transmission line L 3. The connection is very different. In addition, the same code | symbol is provided to the component which is common in FIG. 1, and description is abbreviate | omitted.

  The external camera 6 is installed in a place where the parent camera 24 can not take an image, such as indoors or in a hallway, and when the absence mode is set, recording is performed when the human sensor 28 performs a sensing operation in the same manner as in the above embodiment. In the case of this form, a video from a time that is back by a certain time is recorded. The external camera 6 and the parent camera 24 operate in conjunction with each other.

  Specifically, when the slave device 1 is called and controlled by the master CPU 29, the master camera 24 and the external camera 6 start imaging and the captured video is stored in the temporary storage unit 42. The temporary storage unit 42 is configured to store, for example, a video for 5 minutes, the video from 5 minutes before to the present is always stored, and the video stored before 5 minutes is erased and overwritten with the latest video. .

  Thereafter, when the human sensor 28 performs a sensing operation in this operation state, the captured images of both the cameras 24 and 6 from that time point are respectively stored in the parent device storage unit 27, the child device storage unit 14, and the additional parent device storage unit 37. Is saved. At the same time, the master unit CPU 29 also extracts a recorded video (for example, a video from five minutes before) stored in the temporary storage unit 42 from a predetermined time ago, and stores the master unit storage unit 27, the slave unit storage unit 14, and the extension parent. The data is stored in each of the machine storage units 37. As a result, images from the five minutes before the human sensor 28 performs the sensing operation to the predetermined time after the sensing operation are stored.

  When the absence mode is set, an operation for saving the captured image of the slave camera 12 in response to a call operation, and an operation for notifying the portable terminal 5 of the occurrence of an abnormality when the human sensor 28 performs a sensing operation. Etc. are the same as in the above embodiment.

In this way, by providing the temporary storage unit 42 and always recording for a certain period of time, when receiving the sensing operation of the human sensor 28, it is possible to save the video from a certain period of time before the sensing operation. The probability that an image that can identify a person is stored is increased.
Further, since not only the surrounding image captured by the parent camera 24 but also the captured image of the external camera 6 is stored, a wide range of images can be stored, and the image of the suspicious person can be reliably left.

  It should be noted that only the external camera 6 may be provided and the temporary storage unit 42 may not be provided in the master unit 2. In this case, as in the above embodiment, the master camera 24 after the human sensor 28 performs the sensing operation and The captured image of the external camera 6 only needs to be stored, and not only the image around the parent device captured by the parent camera 24 but also the captured image of the external camera 6 can be stored. It is valid.

  1 .... Slave unit, 2 .... Master unit, 3 .... Extension base unit, 5 .... Portable terminal, 6 .... External camera, 11 .... Call button, 12 .... Slave unit camera, 14 .... Slave unit storage (First video storage unit), 16 .... Slave CPU (disconnection detection unit), 21 ... Call button, 22. Master unit operation unit (answering setting unit), 24. Base camera, 25 ... Monitor 28 .. Human sensor 29.. Base CPU (video control unit, communication control unit) 37.. Additional base unit storage unit (second video storage unit) 41.. External communication IF (external communication Part) 42 .. Temporary storage part (temporary storage part).

Claims (10)

A slave unit having a function of calling a resident and making a call, and having a slave camera for imaging a visitor, a function of responding to a call from the slave unit, and displaying an image captured by the slave camera An intercom system having a master unit equipped with a monitor that
A first video storage unit for storing video is provided in the slave unit,
An intercom system comprising: a video control unit configured to store the captured video of the slave camera in the first video storage unit. The master unit has an answering setting unit that sets an answering mode to automatically save a captured image of the slave camera when the slave unit is called.
2. The video control unit according to claim 1, wherein when the slave unit is called and operated in a state where the absence mode is set, the captured image of the slave unit camera is stored in the first video storage unit. The listed intercom system. The master unit has a master camera that images the surroundings of the master unit,
The intercom system according to claim 1, wherein the video control unit stores the captured video of the base camera in the first video storage unit. The master unit has an answering setting unit that sets an answering mode to automatically save a captured image of the slave camera when the slave is called up,
The said video control part preserve | saves the picked-up image of the said main | base station camera to the said 1st image | video preservation | save part, if the said subunit | mobile_unit is called and operated in the state set to the said absence mode. Intercom system. The master unit includes an answering setting unit that sets an answering mode to automatically save a captured image of the slave device when the slave unit is called, and a human sensor,
4. The video control unit according to claim 3, wherein when the human sensor performs a sensing operation in the state where the absence mode is set, the video control unit stores the captured video of the base camera in the first video storage unit. Intercom system. The base unit has a temporary storage unit that temporarily stores the captured video of the base unit camera,
When the video control unit is set to the absence mode, the video control unit starts saving the captured video of the base camera to the temporary storage unit,
Thereafter, when the human sensor senses, the captured image from a predetermined time before the sensing operation time is taken out from the temporary storage unit and stored in the first video storage unit, and the parent device after the sensing operation is performed. 6. The intercom system according to claim 5, wherein a captured image of the camera is also stored in the first image storage unit. The master unit has an external communication unit that communicates with a predetermined mobile terminal, and a communication control unit that controls communication with the mobile terminal,
The communication control unit, when the human sensor performs a sensing operation, at least notifies the occurrence of an abnormality among the notification of the occurrence of an abnormality and the transmission of the captured image of the base camera to the mobile terminal. The intercom system according to 5 or 6. An external camera that captures a location different from the parent camera is connected to the parent device,
The interphone system according to any one of claims 3 to 7, wherein the video control unit stores the captured video of the external camera in conjunction with the storage of the captured video of the parent camera. Similar to the master unit, an extension master unit having a function of responding to a call from the slave unit is connected to the master unit, and the extension master unit is provided with a second video storage unit for storing video. And
8. The video control unit according to claim 1, wherein the video control unit stores the same video in the second video storage unit in conjunction with video storage in the first video storage unit. Intercom system. A disconnection detector for detecting disconnection of a transmission line connecting the slave unit and the master unit is provided in the slave unit,
The interphone system according to any one of claims 1 to 9, wherein the disconnection detection unit issues an alarm sound from the slave unit when disconnection is detected.

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