JP2009111753A - Video intercom system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a video intercom system in which even when a resident performs electronic panning/tilting operation, a full picture of a camera under imaging capturing is recorded in a video recording device and electronic panning/tilting operation can also be performed on a video-recorded image. <P>SOLUTION: A living room master unit 2 includes: a video recording section 13 for video-recording an image captured by a camera 3 of an entrance slave unit 1; an operating section 15 for panning/tilting the image; and an electronic panning/tilting processing section 19 for performing electronic panning/tilting processing on the captured image. The video recording section 13 video-records a full-screen image captured by the camera 3 all the time, and the electronic panning/tilting processing section 19 is capable of performing panning/tilting processing also to the image video-recorded by the video recording section 13. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a television intercom apparatus that includes a camera that images a visitor and that allows a resident to respond while watching a visitor image, and more particularly to a television intercom apparatus that can perform pan / tilt operations on an image.

  A camera that captures the visitor is installed in the entrance cordless handset, and a monitor that displays the captured image is provided in the living room base unit. When the resident responds to a call from the entrance cordless handset, watching the visitor image TV intercom devices that can respond are widespread. Some of such TV intercom devices enable electronic pan / tilt so that the display position of a visitor displayed on a monitor can be changed or a part of the video can be enlarged and viewed (for example, , See Patent Document 1). By providing the electronic pan / tilt function in this way, it is possible to enlarge the portion of the image captured by the camera and display it on the monitor without changing the imaging direction of the camera or providing a zoom function for the lens. I was able to.

  Also, those equipped with a function for recording video captured by a camera have become widespread. This recording function records the video of a visitor who is away from home and confirms the visitor at the time of absence, or records the output video if the visitor wants to record when the resident is looking at the monitor. It was convenient to leave a record of suspicious persons (for example, Patent Document 2).

JP-A-5-176213 JP 2005-102091 A

  However, as described above, the video recorded when the resident is looking at the monitor is the video that is displayed on the monitor. The same pan / tilt or zoom image was recorded, and the blind spot without being displayed on the monitor was not recorded. Therefore, even if only the part you want to see can be displayed on the monitor by pan / tilt operation, there is no means to confirm the surrounding area that was blind spot without being displayed on the monitor. It was not always an effective means.

  Therefore, in view of such a problem, the present invention records the entire screen of the camera being captured in the recording device even if the resident performs an electronic pan / tilt operation, and the recorded video is also electronically recorded. An object of the present invention is to provide a television intercom apparatus that enables pan / tilt operation.

  In order to solve the above-mentioned problems, the invention of claim 1 is provided with an entrance cordless handset provided with a camera for picking up a visitor and having a function of calling a resident and calling, and a monitor for displaying a picked-up image of the camera A television intercom apparatus having a function of responding to a call from an entrance cordless handset, and recording an image captured by a camera on either the entrance cordless handset or the office base phone. In addition to providing a recording unit, the room master unit is provided with a pan / tilt operation unit for performing pan / tilt operation of an image captured by the camera, and an electronic pan / tilt processing unit for executing pan / tilt processing. A full screen image captured by the camera is always recorded, and the electronic pan / tilt processing unit can perform pan / tilt processing on the video recorded in the recording unit.

According to this configuration, since the video recorded in the recording unit is always a full-screen video captured by the camera, even if an area that becomes a blind spot is generated by pan / tilt operation of the video captured by the camera, recording is performed during that time. By doing this, you can confirm the area that was a blind spot later. In addition, since the pan / tilt operation can be performed on the recorded video, crime prevention can be improved.
In addition, since the video data of the recording unit and the video data captured by the camera can be in the same format, the recorded video can be pan / tilted by a circuit for pan / tilt processing of the video captured by the camera, and the electronic pan / tilt of the recorded video A separate pan / tilt processing unit is not required for processing.

  According to the present invention, even if an area that becomes a blind spot is generated by performing pan / tilt operation on the image captured by the camera, the area that has become a blind spot can be confirmed later by recording during that time. In addition, since the pan / tilt operation can be performed on the recorded video, crime prevention can be improved.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of the invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram of a TV intercom apparatus according to the present invention. Reference numeral 1 is an entrance cordless device that is installed at an entrance or the like for a visitor to call a resident and make a call. This is a living room master for a resident to answer a call from 1.

  The entrance unit 1 includes a lens 3a, a CCD sensor 3b, a camera 3 having an image processing unit 3c configured by an electronic circuit, a modulation unit 4 that performs modulation to transmit a video signal, and a microphone 5 that performs a call. And an audio unit 7 constituted by an electronic circuit for controlling the microphone 5 and the speaker 6, a call button 8, and an interface (slave unit IF) 9 for communicating with the room base unit 2.

  The room master unit 2 includes an interface (base unit IF) 11 for communicating with the entrance slave unit 1, a demodulation unit 12 for demodulating the transmitted video signal, a recording unit 13 for recording the video, and the video A monitor 14 for outputting an image, an operation unit 15 for performing pan / tilt operation and various operations of the output image, a microphone 16 and a speaker 17 for making a call, and an audio unit 18 configured by an electronic circuit for controlling the microphone 16 and the speaker 17. An electronic pan / tilt processing unit 19 that executes pan / tilt of the video displayed on the monitor 14, and a control unit 20 that controls each circuit of the living room master unit 2 and a CPU that controls the entrance unit 1. I have.

The television intercom apparatus configured as described above operates as follows. When the call button 8 of the front cordless handset 1 is operated, a call signal is transmitted to the living room base unit 2 through the handset unit IF9 and recognized by the control unit 20 through the base unit IF11. The control unit 20 that has received the calling signal controls the voice unit 18 to sound a calling sound from the speaker 17, while transmitting a camera activation signal to the front door 1, and the camera 3 starts to image a visitor.
The captured image of the activated camera 3 is FM-modulated by the modulation unit 4 and transmitted to the room base unit 2, and demodulated to the original video signal by the demodulation unit 12. Thus, the image is displayed on the monitor 14 via the electronic pan / tilt processing unit 19 and the video amplifier.

When a resident who notices the ringing sound from the speaker 17 performs a response operation, a communication path is formed between the living room master unit 2 and the entrance unit 1, and the resident is displayed on the monitor 14. A call with the visitor is performed while watching the visitor video.
At this time, that is, when responding or during response, if the operation unit 15 is operated to perform pan / tilt operation, the electronic pan / tilt processing unit 19 pans / tilts the output image. This operation is performed by, for example, a touch panel provided on the monitor 14, and the image of the touched part is enlarged. Thus, zoom processing (pan / tilt processing) of an arbitrary part of the output image is performed. Note that the video image initially displayed on the monitor 14 is a full-screen video imaged by the camera 3.

Regardless of the response operation, when a recording operation is performed by operating the operation unit 15 while the video is being displayed on the monitor 14, the video immediately after being demodulated by the demodulation unit 12 is recorded. The video signal to be recorded is a signal that does not change by pan / tilt operation, and a full-screen video that is always captured by the camera 3 is recorded.
The reproduction of the recorded video is performed by a predetermined operation of the operation unit 15 and is displayed on the monitor 14 via the pan / tilt processing unit 19. If pan / tilt operation is performed at this time, the electronic pan / tilt processing unit 19 operates to execute pan / tilt processing in the same manner as in the case of the captured image of the camera 3, and an enlarged image of an arbitrary part is output to the monitor 14. Drawn.

In this way, since the video recorded in the recording unit is always a full-screen video captured by the camera, even if an area that becomes a blind spot is generated by pan / tilt operation of the video captured by the camera, the video is recorded during that time. You can confirm the area that was a blind spot later. In addition, since the pan / tilt operation can be performed on the recorded video, crime prevention can be improved.
In addition, since the video data of the recording unit and the video data captured by the camera can be in the same format, the recorded video can be pan / tilted by a circuit for pan / tilt processing of the video captured by the camera, and the electronic pan / tilt of the recorded video A separate pan / tilt processing unit is not required for processing.

  In the above embodiment, the recording unit 13 is provided in the living room master unit 2, but it may be provided in the front door unit 1.

It is a block diagram which shows an example of the television intercom apparatus which concerns on this invention.

Explanation of symbols

  1 .. Entrance cordless handset, 2 .... Living room master, 3 .... Camera, 13 .... Recording unit, 14 .... Monitor, 15 .... Operation unit (pan / tilt operation unit), 19 .... Electronic pan / tilt Processing unit, 20... Control unit.

Claims (1)

A function of responding to a call from the entrance slave unit having a camera that captures a visitor and having a function of calling a resident and having a call and a monitor that displays a captured image of the camera A television intercom apparatus having a living room base unit equipped with
A panning unit for recording a video captured by the camera is provided in either the entrance cordless handset or the living room base unit, and panning / tilting operation of the video captured by the camera is performed in the living room base unit. / Tilt operation unit and an electronic pan / tilt processing unit for performing pan / tilt processing, the recording unit always records a full screen image captured by the camera, and the electronic pan / tilt processing unit includes: A television intercom apparatus characterized in that pan / tilt processing can be executed on video recorded in the recording unit.

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