JP2012095017A - Intercom device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an intercom device capable of displaying and recording a video of a suspicious person who has appeared at an entrance without being noticed by the suspicious person.SOLUTION: The intercom device comprises: an entrance extension 2 including a call button 11, an extension microphone 12, an extension speaker 13, a camera 15, a motion sensor 18, and an illumination module 17; and an in-room base unit 3 including a base microphone 32, a base speaker 33, a monitor 34, and a recording module and connected to the entrance extension 2 via a transmission line L. One of the entrance extension 2 and the in-room base unit 3 includes a suspicious person determination module 29 configured to determine whether a detected person is a suspicious person or not. When it is determined by the suspicious person determination module 29 that the detected person is a suspicious person, the intercom device increases sensibility of the camera and activates the camera, instead of changing setting of the illumination module 17, and transmits an obtained video of the suspicious person to the in-room base unit so as to cause the monitor to display the video or perform a recording operation.

Description

  The present invention relates to an interphone device, and more particularly, to an interphone device having a function of detecting and recording a suspicious person when a suspicious person appears at an entrance.

  If the person at the entrance is judged as a suspicious person, the conventional intercom will prompt the suspicious person to move away by flashing the light or playing sound through the speaker, thereby improving the security function. I was planning.

  For example, Patent Document 1 discloses an apparatus that includes an illumination unit and performs a threatening operation by blinking illumination (flash light) for a suspicious person.

  Further, Patent Document 2 includes a human sensor that detects a person approaching and a suspicious person determination unit that determines whether or not the person detected by the human sensor is a suspicious person. If the call button is not pressed for a certain period after the sensation sensor detects a person, the person is judged to be a suspicious person, and automatically performs a threatening operation with blinking illumination, and the recording of the suspicious person is recorded. The structure which starts the camera for this is disclosed.

JP 11-431170 A JP 2009-182039 A

    However, by intimidating the suspicious person, the suspicious person is informed that the suspicious person is detected by the interphone.Therefore, the behavior of avoiding the interphone or blocking the interphone's camera unit with paper, tape, etc. As a result, the recording of the suspicious person was hindered, and there was a case where the threat by the interphone did not necessarily work for security purposes.

  In view of the above situation, the present invention has an object to provide an interphone device capable of displaying and recording a video of a suspicious person without stimulating the suspicious person when the suspicious person appears at the entrance. .

In order to achieve the above object, an intercom apparatus according to the present invention comprises:
Call button for calling a resident, handset microphone and handset speaker for calling with a resident, a camera for imaging a visitor, a human sensor for detecting an approaching person, and a minimum for imaging by the camera An entrance unit having a lighting unit that supplies brightness above the minimum required light quantity and enables imaging of the camera at night;
A main unit microphone and a main unit speaker for calling with the visitor in response to a call from the front door unit, a monitor for displaying a video imaged by the camera, and a video imaged by the camera An intercom device including a master unit having a recording unit to perform,
A suspicious person determination unit that determines whether or not the detected person is a suspicious person has either one of the entrance cordless handset or the room base phone,
If the suspicious person determination unit determines that the suspicious person is a suspicious person, the camera setting is changed so that the image of the suspicious person can be clearly captured, the camera is activated, and the captured suspicious person image is transmitted to the living room master unit. Transmission is the first feature.

  In the interphone device according to the first feature, when the suspicious person determination unit determines that the suspicious person is a suspicious person, the sensitivity of the camera is increased to activate the camera, and the captured suspicious person image is transmitted to the living room base unit. This is a second feature.

  In the interphone device according to the first or second feature, the suspicious person determination unit determines that the suspicious person is a suspicious person, and the camera is activated before and after the activation of the camera, A third feature is that the same state is maintained without changing the lighting or extinguishing state of the illumination unit.

  According to the interphone device of any of the above features, when the suspicious person determination unit determines that the suspicious person is a suspicious person, the setting of the camera is changed and the suspicious person is imaged. Therefore, it becomes possible to take an image of a suspicious person without being disturbed.

  In the intercom device according to any one of the first to third features, the suspicious person determination unit may not press the call button even after a predetermined time has elapsed after the human sensor detects a person. In this case, the fourth feature is that the person detected by the human sensor is determined to be a suspicious person.

  According to the interphone device of the fourth feature, a suspicious person and a normal visitor can be distinguished with a simple configuration, and the normal visitor is not uncomfortable.

The intercom apparatus according to any one of the first to fourth features further includes a light amount sensor for detecting ambient brightness in the entrance cordless handset.
When the suspicious person determination unit determines that the suspicious person determination unit is a suspicious person and the light amount detected by the light amount sensor is less than a predetermined amount, the entrance child machine increases the sensitivity of the camera and activates the camera. The fifth feature is that a person image is captured.

  According to the interphone device having the fifth feature, even if the light amount is insufficient due to the illumination unit being turned off, the suspicious person can be clearly imaged without being recognized by the suspicious person.

  In the intercom apparatus according to any one of the first to fifth features, the entrance cordless handset further depends on the determination of the suspicious person determination unit when the light amount detected by the light amount sensor is smaller than the minimum light amount. The sixth feature is that the illumination unit is always turned on.

  According to the interphone device of the sixth feature, even at night when the amount of light around the entrance is absolutely insufficient, the suspicious person can be clearly imaged without being recognized by the suspicious person.

  Therefore, according to the present invention, when a suspicious person appears at the entrance, the intercom device can display and record the video of the suspicious person without stimulating the suspicious person and specify the suspicious person Is realized.

The typical block diagram which shows the structural example of the intercom apparatus which concerns on this invention. The block diagram which shows the structural example of the intercom apparatus which concerns on this invention. The flowchart which shows operation | movement of the intercom apparatus which concerns on this invention.

<First Embodiment>
A configuration example of an intercom device 1 according to an embodiment of the present invention (hereinafter referred to as “the present device 1” as appropriate) is shown in FIGS. FIG. 1 is a block diagram of the device 1 of the present invention, and FIG. 2 is a block diagram. 1 and 2, the device 1 of the present invention is installed at the entrance, and an entrance cordless handset 2 for a visitor to call a resident, and a living room parent for responding to a call from the entrance cordless handset 2. The entrance cordless handset 2 and the living room base phone 3 are connected by a transmission line L.

    In this embodiment, the entrance slave unit 2 includes a call circuit 11 connected to a call button 11, a slave unit microphone 12 and a slave unit speaker 13, a camera 15 for capturing an image of a visitor, and an illumination unit including a white LED. 17, a human sensor 18, a light amount sensor 19 for detecting the brightness around the entrance cordless handset 2, a video processing unit 23 for performing a modulation process of a video signal picked up by the camera 15, and the room base unit 3 An interface (child device IF) 25 for performing the operation and a child device control unit 27 for controlling the entrance child device 2 are provided. Furthermore, in this invention, the subunit | mobile_unit control part 27 is equipped with the suspicious person determination part 29 in the inside, and the said suspicious person determination part 29 is based on the state of the call button 11 and the detection state of the human sensor 18. It is determined whether or not the visitor is a suspicious person. If the visitor is determined to be a suspicious person, the camera 15 can capture a clear image of the suspicious person according to the detection state of the human sensor 18 and the detection amount of the light quantity sensor 19. After changing the setting, the camera 15 is activated.

    When the human sensor 18 detects a person within a predetermined range around the entrance, the human sensor 18 sends a signal to the suspicious person determination unit 29 in the handset controller 27 to notify that there is a person approaching the entrance.

    The light quantity sensor 19 detects the brightness around the entrance, and transmits information for controlling the illumination unit 17 and the camera 15 to the slave unit control unit 27. In particular, at the time of suspicious person determination, the camera 15 is controlled based on the light amount detected by the light amount sensor 19 so that a suspicious person image can be clearly captured.

    On the other hand, the living room base unit 3 includes a call circuit 22 to which a base unit microphone 32 and a base unit speaker 33 are connected, a video processing unit 24 that performs demodulation processing of a video signal transmitted from the video processing unit 23, and a camera 15 that captures images. A monitor 34 for displaying the recorded video, a memory 35 for recording the video, a suspicious person recording button 36, a call button 31 for responding to a call from the front door 2, and communication with the front door 2. Interface (parent machine IF) 26 and a parent machine control unit 28 for controlling the living room parent machine 3. Although not shown, the video processing unit 24, the parent device control unit 28, and the memory 35 have a function as a recording unit that records a video image captured by the camera 15 of the front door unit 2. In the recording unit, recording is controlled by the parent device control unit 28, and the recorded video is stored in the memory 35.

  First, general operations in the device 1 of the present invention configured as described above will be described.

  When a visitor calls the resident by pressing the call button 11 of the entrance cordless handset 2, a call signal is transmitted to the living room base unit 3 via the transmission line L, and a ringing sound is transmitted from the base unit speaker 33 of the living room base unit 3. Sounds. At the same time, the child device control unit 27 activates the camera 15 of the entrance child device 2, and the captured image is transmitted to the parent device IF 26 of the living room parent device 3 via the image processing unit 23 and the child device IF 25, and the image processing unit 24. Is displayed on the monitor 34 of the living room master unit 3.

  At this time, if the slave unit control unit 27 receives information from the light amount sensor 19 and determines that the light amount at the entrance is sufficiently secured, the camera 15 is started with the illumination unit 17 turned off, but the light amount is not sufficient. If it is determined that it is sufficient, the lighting unit 17 is turned on to start.

  Thereafter, when the resident who has confirmed the visitor with the ringing tone and the monitor 34 presses the call button 31 of the room base unit 3, the base unit control unit 28 controls the transition to the call mode, and the handset microphone 12, handset The speaker 13, the parent device microphone 32, and the parent device speaker 33 can be active to make a call.

  In this way, for a normal visitor, it is determined whether or not the illumination unit is turned on in accordance with the amount of light before the entrance, and an image is taken by the camera 15.

  Next, the procedure for recording a suspicious person by the apparatus of the present invention will be described with reference to the flowchart of FIG.

  In the present embodiment, the resident presses the suspicious person record button 36 of the living room master unit 3 when recording the suspicious person (S1). Then, the front door 2 always shifts to the suspicious person monitoring mode for monitoring the state of the call button 11 and the human sensor 19 (S2, S3). The suspicious person determination unit 29 provided in the child device control unit 27 activates a timer when the human sensor 19 detects a person without pressing the call button 11 and calls the call button within a predetermined time (for example, 15 seconds). It is monitored whether 11 is pressed (S4).

  If the call button 11 is not pressed even after the predetermined time has elapsed, the suspicious person determination unit 29 determines that the person who appears at the entrance is a suspicious person, and turns on the suspicious person flag on the slave unit control unit 27 (S5). ). On the other hand, if the call button 11 is pressed within a predetermined time, the suspicious person flag remains off. The suspicious person record button 36 is pressed by this suspicious person flag, and can be distinguished from a normal visitor even in the suspicious person monitoring mode. Further, the fact that the suspicious person flag is turned on is also transmitted via the transmission line L to the parent device control unit 28 of the living room parent device 3.

  Next, in response to the information from the light quantity sensor 19, the handset controller 27 determines the light quantity at the entrance (S6). If the amount of light is insufficient (YES branch in S6), the illumination unit 17 is turned on (S12) depending on the state of the suspicious person flag (S12), or the camera 15 is configured so that the suspicious person image can be captured more clearly. Either the setting is changed (S13), and if it is determined that the amount of light is sufficient, neither lighting of the illumination unit 17 nor setting of the camera 15 is changed. That is, when the amount of light around the entrance is less than a predetermined threshold and the suspicious person flag is off, the lighting unit 17 is turned on to start the camera (S12), and the visitor's main unit 3 monitors the monitor 34 The video is displayed and the normal resident calling operation described above is performed. On the other hand, when the amount of light around the entrance is less than a predetermined threshold and the suspicious person flag is turned on, the setting of the camera 15 is set so that the suspicious person image can be captured more clearly without changing the brightness of the illumination unit 17. And the camera 15 is activated (S13), the suspicious person's video is displayed on the monitor 34, recording is started in the memory 35 (S7), and a predetermined number of suspicious persons' video is recorded (S8). The recording is finished, the camera 15 is stopped (S9), and the camera settings are restored. Here, in step S13, the camera 15 is activated in a state where the sensitivity is increased in accordance with the amount of light around the entrance, and the camera 15 is set so that a suspicious person's image can be captured clearly.

  Thereafter, in order to perform post-processing when the suspicious person flag is on, the state of the suspicious person flag is determined again (S10). When the suspicious person flag is on, the base unit control unit 28 blinks the suspicious person record lamp 37 in the room base unit 3 indicating that the suspicious person has been recorded, and the resident is visited by the suspicious person. Inform that there was (S14). In addition, base unit control unit 28 adds a tag indicating that the video is a suspicious person to a file in memory 35 in which the video of the suspicious person is recorded (S15). By adding the tag, the resident can distinguish and manage the video of the general visitor from the video of the suspicious person from the video recorded in the memory 35, and the suspicious person video can be easily extracted. It is possible to increase the efficiency of the specific work of the person.

  Then, after the post-processing, the suspicious person flag in the slave unit control unit 27 and the master unit control unit 28 is turned off (S16), and the process returns to the state confirmation (S2, S3) of the call button 11 and the human sensor 18.

  The above is the operation of the flowchart shown in FIG. In the device 1 of the present invention, after the human sensor 18 detects a person, it is determined whether or not the person is a suspicious person by the time until the call button 11 is pressed. In order to record the suspicious person with the sensitivity of the camera 15 increased so that the image of the suspicious person can be captured more clearly without changing the state of the suspicious person, the suspicious person and the normal visitor can be easily obtained. It is possible to distinguish and display and record a suspicious person image without stimulating the suspicious person.

  Further, the suspicious person determination unit 29 periodically monitors the brightness around the entrance during the suspicious person monitoring mode, and when the light amount around the entrance detected by the light amount sensor 19 is less than a predetermined minimum light amount, the illumination unit 17 is turned on, and the brightness at the time of lighting of the illumination unit 17 is controlled so that the light amount around the entrance is maintained at least the minimum light amount.

  Here, the minimum amount of light is the minimum amount of light necessary for imaging by the camera 15. In the present embodiment, the minimum amount of light is necessary when the camera 15 is set to the highest sensitivity and a suspicious person is imaged clearly. The amount of light. In this way, by controlling so that the brightness around the entrance always maintains the minimum light amount or more, even if it is nighttime when the light amount is insufficient, the suspicious person's video is displayed and recorded without threatening the suspicious person be able to.

  As mentioned above, although one embodiment of the present invention was described in detail, this is an example of a suitable embodiment of the present invention. The embodiments of the present invention are not limited to these, and various modifications can be made without departing from the scope of the present invention.

  Another embodiment will be described below.

  <1> The device 1 of the present invention has a configuration in which the suspicious person determination unit 29 is provided in the child device control unit 27, but the suspicious person determination unit 29 is provided in the parent device control unit 28, and from the living room parent device 3 side. The illumination unit 17, the human sensor 18 and the light amount sensor 19 may be controlled via the transmission line L.

  <2> Further, when the suspicious person determination unit 29 determines the suspicious person, the device 1 of the present invention is configured to record a predetermined number of still images of the suspicious person. However, as long as the capacity of the memory 35 permits, It is good also as a structure recorded as a moving image. Moreover, it is good also as a structure which records a sound other than an image via the subunit | mobile_unit microphone 12, for example.

  <3> In the above embodiment, when the suspicious person determination unit 29 determines a suspicious person, the sensitivity of the camera 15 is increased to stimulate the suspicious person so that the image of the suspicious person can be clearly captured. Although the case where imaging and recording of a suspicious person are performed has been described, the present invention is not limited to this. For example, a method of directing the camera 15 in the direction in which the suspicious person is present using detection information of the human sensor 18. Another possible method is to switch the field of view of the camera from a wide angle to a narrow angle and to enlarge and record the place where the suspicious person is.

  <4> In the above-described embodiment, when the suspicious person determination unit 29 determines a suspicious person, the image of the suspicious person is clearly displayed only when the light amount detected by the light amount sensor 19 is less than a predetermined threshold. Imaging and recording are performed by increasing the sensitivity of the camera 15 so that the image can be captured. However, regardless of the amount of light detected by the light amount sensor 19, the suspicious person determination unit 29 always determines the suspicious person. It is also possible to adopt a configuration in which imaging and recording are performed with increased sensitivity. In that case, in the flowchart of FIG. 3, after step S5, the light quantity sensor 19 jumps to step S11 without determining the light quantity (S6), and depending on the state of the suspicious person flag (S11), the suspicious person flag is set. Whether the illumination unit 17 is turned on when the camera is off (S12), or if the suspicious person flag is on, the setting of the camera 15 is changed so that the suspicious person image can be captured more clearly (S13). The configuration is to be performed.

  <5> In the above embodiment, the suspicious person determination unit 29 automatically determines the suspicious person. For example, after the resident responds to the visitor's call, the resident makes the visitor a suspicious person. Since it may be possible to make a determination, it is preferable that the resident can manually record a suspicious person. Also in this case, the suspicious person's video can be displayed and recorded without threatening the suspicious person by changing the setting of the camera 15 and photographing the suspicious person without changing the state of the illumination unit 17. . For example, if the room master unit 3 has a suspicious person recording button and the suspicious person flag is forcibly turned on when the suspicious person recording button is pressed, the subsequent operation is as shown in FIG. This is equivalent to S6 and subsequent steps in the flowchart.

  <6> In the above embodiment, the operation when the call button 11 is pressed by a visitor and the resident responds by pressing the call button 31 to the visitor has been described in detail, but the resident is away The present invention is applicable even when the resident does not respond to the call, such as when the resident refuses a call with the visitor. In that case, in the suspicious person monitoring mode, since the call button 31 is not pressed in response to the pressing of the call button 11, the suspicious person flag is temporarily reset (turned off) by pressing the call button 11, but when the call button 11 is pressed. It is preferable that the detection time by the human sensor 18 is counted again with reference to the above to determine the suspicious person. In the case of an interphone device having an absence recording function, since the absence recording function responds instead of the resident, the subsequent operation is equivalent to the flowchart of FIG.

  INDUSTRIAL APPLICABILITY The present invention can be used for an interphone device, and preferably can be used for an interphone device having a recording function for detecting a suspicious person around the entrance and specifying the suspicious person.

1: Interphone device according to the present invention (device of the present invention)
2: Entrance child device 3: Living room parent device 11: Call button 12: Child device microphone 13: Child device speaker 15: Camera 17: Illumination unit 18: Human sensor 19: Light sensor 21: Call circuit (child device side)
22: Call circuit (base unit side)
23: Video processor (slave unit side)
24: Video processing unit (base unit side)
25: Handset IF
26: Master unit IF
27: Slave unit control unit 28: Master unit control unit 29: Suspicious person determination unit 31: Call button 32: Master unit microphone 33: Master unit speaker 34: Monitor 35: Memory 36: Suspicious person record button 37: Suspicious person record exists Lamp L: Transmission line

Claims (6)

Call button to call the resident,
Handset microphone and handset speaker for talking to residents,
A camera that captures visitors,
A human sensor for detecting an approaching person, and
An entrance unit having a lighting unit that supplies brightness at least above the minimum light amount necessary for imaging of the camera and enables imaging of the camera at night;
A main unit microphone and a main unit speaker for calling with the visitor in response to a call from the front door unit;
A monitor for displaying video captured by the camera; and
An intercom apparatus comprising: a master unit having a recording unit that records video captured by the camera;
A suspicious person determination unit that determines whether or not the detected person is a suspicious person has either one of the entrance cordless handset or the room base phone,
If the suspicious person determination unit determines that the suspicious person is a suspicious person, the camera setting is changed so that the image of the suspicious person can be clearly captured, the camera is activated, and the captured suspicious person image is transmitted to the living room master unit. An intercom apparatus characterized by transmitting.   The said suspicious person judgment part raises the sensitivity of the said camera, starts the said camera, and transmits the suspicious person image | video which was imaged to the said room main unit, The said suspicious person determination part determines the suspicious person. Intercom device. In the case where the suspicious person determination unit determines that the person is a suspicious person and the camera is activated,
The interphone apparatus according to claim 1 or 2, wherein the same state is maintained without changing a lighting or extinguishing state of the illumination unit before and after the camera is started.   The suspicious person determination unit determines that the person detected by the human sensor is a suspicious person when the call button is not pressed even after a predetermined time has elapsed after the human sensor detects the person. The intercom apparatus according to any one of claims 1 to 3, wherein The entrance cordless handset has a light amount sensor for detecting ambient brightness,
The entrance cordless handset is
When the suspicious person determination unit determines that the person is a suspicious person and the light amount detected by the light amount sensor is less than a predetermined amount, the camera is activated with the sensitivity of the camera increased, and a suspicious person image is captured. The intercom apparatus according to any one of claims 1 to 4, wherein The entrance cordless handset is
6. The intercom apparatus according to claim 5, wherein when the light amount detected by the light amount sensor is smaller than the minimum light amount, the illumination unit is always turned on regardless of the determination of the suspicious person determination unit.

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