JP2000083248A - Image recording device and system therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To connect this image recording device with a front door slave device and a master device by using an already set wiring without using any special wiring by detecting an incoming signal from the front door slave device to the master device, detecting power supply from the master device to the front door slave device, and recording a video from a monitor camera, and outputting it to a monitor screen by the image recording device connected with a connection line. SOLUTION: When a calling button 12 is depressed, a master device 3 and an incoming detecting part 41 detects an incoming call from a front door slave device 1 through a connection line 2. An image recording device 4 starts at the time of receiving the incoming signal, and receives a videos signal photographed by a monitor camera 11 through the connection line 2, and records it in a recording part 43. The recorded videos signal is outputted through the connection line 2 to the master device 3, and reproduced on a monitor screen 31 of the master device 3. When the monitor screen 31 is turned off by the operation of the master device 3, power supply through the connection line 2 to the front door slave device 1 is stopped. A power supply detecting part 42 detects this, and stops the reproducing operation of the image recording device 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is suitably applied to an intercom system including a front door unit with a surveillance camera installed at the entrance of a house or the like and a main unit with a monitor screen installed indoors. The present invention relates to an image recording apparatus and an image recording system.

[0002]

2. Description of the Related Art FIG. 2 is a block diagram showing a configuration of a conventional image recording system. The system includes a master unit 7 connected to the entrance slave unit 5 via a connection line 6, and an image recording device 9 connected to the master unit 7 via various signal lines 8a to 8c.

[0003] The entrance terminal 5 has a surveillance camera 51 and a call button 52. When the entrance button 52 is pressed, the base unit 7 detects an incoming call from the entrance terminal 5 via the connection line 6, and An incoming signal is transmitted to the recording device 9 via the incoming signal line 8a.

[0004] The image recording device 9 is activated upon receiving the incoming signal, and transmits a video signal captured by the monitoring camera 51 to the connection line 6.
The video signal is received from the master unit 7 via the video signal line 8b and recorded in the recording unit 91.

In order to reproduce the image recorded in the recording section 91, the recorded video signal is output to the master unit 7 via the video signal line 8b, so that the monitor screen 7 of the master unit 7 is displayed.
1 can be reproduced.

When the reproduction is stopped, when the monitor screen 71 is turned off by operating the master unit 7, the master unit 7 notifies the image recording device 9 of the end of the reproduction via the HOOK signal line 8c. The reproduction operation ends.

As described above, even in the conventional image recording system, by providing a special wiring between the master unit 7 and the image recording device 9, it is possible to record and reproduce the image of the visitor.

[0008]

However, in the conventional image recording system, it is necessary to transmit a signal necessary for recording and reproduction control from the master unit 7 to the image recording apparatus 9,
There is a disadvantage that a special wiring is required between the master unit 7 and the image recording device 9.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and can be connected to an entrance terminal and a base unit using existing wiring without using special wiring. It is an object to provide an image recording device and an image recording system using the image recording device.

[0010]

According to the image recording apparatus of the present invention, an incoming call from the entrance slave to the master is connected to a connection line connecting the entrance slave having a surveillance camera and the master having a monitor screen. Incoming call detection means, power supply detection means connected to the connection line for detecting power supply from the master unit to the entrance slave unit, and video signal from the monitoring camera connected to the connection line and output to the monitor screen Recording means.

According to the present invention, it is possible to obtain an image recording apparatus which can be connected to an entrance device and a parent device using existing wiring without using special wiring.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An image recording apparatus according to a first aspect of the present invention is connected to a connection line connecting an entrance unit having a surveillance camera and a parent unit having a monitor screen. Incoming call detection means for detecting an incoming call to the terminal, power supply detection means connected to the connection line for detecting power supply from the master unit to the entrance slave unit, and a monitor screen connected to the connection line for recording a video signal from the surveillance camera And recording means for outputting to the recording device.

According to the image recording apparatus of the present invention, an incoming call from the entrance slave to the master is detected by the incoming detection means via the connection line connecting the entrance slave and the master, and photographed by the surveillance camera. The video signal is recorded in the recording means, and the video signal recorded in the recording means is output to the monitor screen of the master unit, and the power supply detection unit detects the stop of power supply from the master unit to the entrance slave unit, and stops the reproduction operation. It has the action of:

According to a second aspect of the present invention, there is provided an image recording apparatus which is connected to a connection line connecting an entrance unit having a surveillance camera and a base unit having a monitor screen to detect an incoming call from the entrance unit to the base unit. Detecting means, power supply detecting means connected to the connection line for detecting power supply from the master unit to the entrance slave unit, and demodulating and recording a modulated video signal from the surveillance camera connected to the connection line to record on the monitor screen Recording means for modulating and outputting.

According to the image recording apparatus of the present invention, an incoming call from the entrance slave to the master is detected by the incoming detection means via the connection line connecting the entrance slave and the master, and the image is taken by the surveillance camera. The modulated video signal is demodulated and recorded on the recording means,
The video signal recorded in the recording means is modulated and output to the monitor screen of the master unit, and the power supply detecting unit detects the stop of the power supply from the master unit to the entrance slave unit to stop the reproducing operation.

According to a third aspect of the present invention, there is provided an image recording system having a surveillance camera for outputting a video signal representing an image captured by the surveillance camera, and a surveillance device connected to the surveillance device via a connection line. A master unit having a monitor screen representing an image captured by a camera, and an image recording apparatus having a recording unit connected to the connection line and recording a video signal representing the image captured by the monitoring camera and outputting the video signal to the monitor screen. is there.

According to the present invention, the image recording apparatus records the video signal photographed by the surveillance camera in the recording means via the connection line connecting the entrance cordless handset and the parent machine, and the video signal recorded in the recording means. Is reproduced on the monitor screen of the parent device.

An image recording system according to a fourth aspect of the present invention has a surveillance camera, and modifies and outputs a video signal representing an image picked up by the surveillance camera. A master unit having a monitor screen for displaying an image captured by a surveillance camera by demodulating a video signal, and a recording unit connected to a connection line for demodulating and recording the modulated video signal, modulating the modulated video signal to a monitor screen, and outputting the same. An image recording device.

According to the present invention, the image recording apparatus demodulates the output video signal which is imaged and modulated by the surveillance camera and records the demodulated video signal on the recording means via the connection line connecting the entrance cordless handset and the parent machine. The video signal recorded in the recording means is modulated and reproduced on the monitor screen of the master unit.

FIG. 1 shows an embodiment of the present invention.
This will be described with reference to FIG.

FIG. 1 is a block diagram showing the configuration of an image recording system according to the present invention. In this system, a main unit 3 is connected to a main entrance device 1 via a connection line 2, and an image recording device 4 is connected to the connection line 2. Entrance device 1 has surveillance camera 11 and call button 12, and base device 3 has monitor screen 31.

The image recording device 4 records an incoming signal from the entrance cordless handset 1, a power supply detecting unit 42 for detecting power supply from the base unit 3, and records a video signal captured by the monitoring camera 11. And a recording unit 43 for performing the recording. Incoming call detector 4
1, the power supply detection unit 42 and the recording unit 43
It is connected to the.

In the case of a system in which a video signal is modulated and output by the entrance device 1 and demodulated and reproduced by the master device 3, a modulation / demodulation unit may be provided in the recording unit 43.

In this configuration, when the call button 12 is pressed, the incoming call detecting section 4 of the master unit 3 and the image recording device 4
1 detects an incoming call from the entrance terminal 1 via the connection line 2. The image recording device 4 is activated upon receiving the incoming signal, receives a video signal captured by the monitoring camera 11 via the connection line 2, and records the video signal in the recording unit 43.

In order to reproduce the image recorded in the recording unit 43, the recorded video signal is output to the master unit 3 via the connection line 2, so that the image can be reproduced on the monitor screen 31 of the master unit 3. .

When the reproduction is stopped, when the monitor screen 31 is turned off by operating the master unit 3, the power supply from the master unit 3 to the entrance slave unit 1 via the connection line 2 is stopped. This is detected by the power supply detection unit 42 of the image recording device 4,
The reproduction operation of the image recording device 4 is stopped.

[0027]

According to the present invention, it is possible to obtain an image recording device which can be easily connected to the entrance device and the parent device without requiring any special wiring. The advantageous effect that the used image recording system can be obtained is obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an image recording system according to an embodiment of the present invention;

FIG. 2 is a block diagram showing a conventional image recording system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Entrance child unit 2 Connection line 3 Base unit 4 Image recording device 11 Surveillance camera 12 Call button 31 Monitor screen 41 Incoming detection unit 42 Power supply detection unit 43 Recording unit

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Akiyoshi Sekiguchi 4-3-1 Tsunashima Higashi, Kohoku-ku, Yokohama-shi, Kanagawa Prefecture Inside Matsushita Communication Industrial Co., Ltd. (72) Inventor Hiroyuki Kawana Tsunashima Higashi-shi, Kohoku-ku, Yokohama, Kanagawa Prefecture No.3-1, Matsushita Communication Industrial Co., Ltd. F-term (reference) 5C054 DA08 EG08 GA01 GB01 GD06 HA22 5K038 AA03 AA09 CC02 DD09 DD15 DD23 FF04 GG03

Claims (4)

[Claims] 1. An incoming call detecting means connected to a connection line for connecting an entrance slave unit having a surveillance camera and a master unit having a monitor screen to detect an incoming call from the entrance slave unit to the master unit; Power supply detection means connected to the main unit and detecting power supply from the main unit to the entrance slave unit, and recording means connected to the connection line for recording a video signal from the surveillance camera and outputting the video signal to the monitor screen, An image recording device, comprising: 2. An incoming call detecting means connected to a connection line for connecting an entrance slave having a surveillance camera and a master having a monitor screen to detect an incoming call from the entrance slave to the master. Power supply detecting means connected to the main unit and detecting power supply from the main unit to the entrance slave unit; and a demodulated video signal from the surveillance camera connected to the connection line and recorded and modulated on the monitor screen. An image recording apparatus comprising: 3. An entrance device having a surveillance camera and outputting a video signal representing an image captured by the surveillance camera, and an image captured by the surveillance camera connected to the entrance device via a connection line. A master unit having a monitor screen; and an image recording device having a recording unit connected to the connection line and recording a video signal representing an image captured by the surveillance camera and outputting the video signal to the monitor screen. Image recording system. 4. An entrance device having a surveillance camera for modulating and outputting a video signal representing an image captured by the surveillance camera, and a demodulator for demodulating the video signal connected to the entrance device via a connection line. An image recording apparatus comprising: a master unit having a monitor screen representing an image captured by the monitoring camera; and a recording unit connected to the connection line for demodulating and recording the modulated video signal, and modulating and outputting the modulated video signal to the monitor screen. And an apparatus.