JP3229799B2 - Door phone camera intercom - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door phone camera subunit including a camera, a microphone, a speaker, a call button and a human body detection sensor, a monitor for receiving a camera image from a door phone, and a recording device for storing the camera image. The present invention relates to a door phone camera communication device including a door phone camera master unit provided.

[0002]

2. Description of the Related Art A conventional door phone camera communication apparatus of this type has a function of improving a security function by providing a human body detection sensor.
Japanese Patent Publication No. 6-No.

[0003] Japanese Unexamined Patent Publication No. 3-192886 discloses a door phone call detecting circuit for detecting an operation of a door phone, a separating circuit for separating a composite video signal from a surveillance camera into a video signal and a synchronizing signal. A conversion circuit that converts a video signal output from the separation circuit into image data, a memory that stores the image data output from the conversion circuit according to a command, and a sensor that detects that the monitored person has approached the vicinity of the monitoring camera.
The control circuit instructs the memory to store the image data based on one of the output signal of the sensor and the output signal of the door phone call detection circuit.

[0004]

With the above configuration, the camera intercom slave unit and the master unit operate by the human body detection sensor provided in the intercom camera slave unit.
Before the visitor presses the call button of the intercom camera slave unit, the camera image is recorded. However, if the visitor is a suspicious individual and the visitor goes out of sight of the intercom camera,
It becomes difficult to determine whether a person is a suspicious individual. Similarly, when a visitor is recorded in a small size, it is difficult to determine whether the visitor is a suspicious person. Therefore, there is a problem in crime prevention in the prior art.

Therefore, the present invention reliably records and records the image and sound of the visitor before pressing the call button of the intercom slave unit, and reliably determines whether or not the visitor is suspicious. It is an object of the present invention to provide a door phone camera communication device that has improved security performance so that it can be performed.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, a door phone camera communication device according to the present invention has a camera
Door, equipped with a speaker, a call button, and a human body detection sensor.
Monitor that receives camera images from the
Computer with a recording device for storing camera images
Door phone camera communication device consisting of Ahon camera master unit
When the call button of the intercom camera slave unit is pressed, the intercom
Monitor image from the camera
At the time of human body detection by the human body detection sensor
The main phone and the main phone operate, and visitors enter the door phone camera
When the camera image before pressing the call button is recorded on the recording device
In both cases, the camera image is recorded on the recording device,
Voice recording on recording device, doorphone camera parent
Means to reproduce the camera video stored in the recording device
And a playback button for activating the playback means.
At the time of pressing, from the recording device until the call button of the visitor is pressed
Give priority to the recorded video, and when the output of the recorded video ends
The current monitor image is output. With the above configuration, the door phone camera communication device of the present invention can record and record the image and sound of the visitor before pressing the call button of the door phone slave unit, and can surely confirm whether the visitor is a suspicious individual. Things.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a door phone camera communication device according to an embodiment of the present invention. FIG.
In the figure, reference numeral 1 denotes a door phone camera slave unit, and 2 denotes a door phone camera master unit, which are electrically connected to each other by a cable 3. The intercom camera 1 includes a television camera 4, a call button 5 operated by a visitor, a microphone / speaker unit 6 for talking, and a human body detection sensor 7 for detecting a visitor (for example, a hot-wire type human body). Detection sensor).

The door phone camera base unit 2 has a monitor 8 at the top of the front panel, a talker 9 detachably mounted on the side of the front panel, and a monitor 8 at the bottom of the front panel.
It comprises a monitor switch 10 for N / OFF control, a playback button 11 for playing back the recorded video recorded by the television camera 4, and a touch panel 12 mounted on the monitor.

Next, the operation of the embodiment of the door phone camera communication apparatus of the present invention configured as described above will be described.
This will be described with reference to FIGS. 1, 2 and 5. First, when a visitor approaches the intercom camera 1, it is detected by the human body detection sensor 7 attached to the intercom camera 1 (step S <b> 1), and a detection signal is transmitted via the cable 3 to the CPU ( The microcomputer 13 receives the detection signal.

[0010] Then, a detection sound is output by the intercom camera master unit 2, and informs the resident that the visitor has been detected by the human body detection sensor 7. Further, the CPU 13 operates the television camera 4 and the monitor 8, and displays an image of a visitor from the television camera 4 on the monitor 8. CPU1
The A / D converter 14 in the door phone camera master unit 2 converts the video signal of the visitor projected by the TV camera 4 from an analog signal to a digital signal, and records the digital signal in a memory 15 for storing digital data (step S2). ).

In the above, when the resident is in the immediate vicinity of the door phone camera base unit 2, the resident can check the image of the visitor displayed on the monitor 8 by the detection sound indicating that the visitor has arrived. it can. If the resident cannot check the image of the visitor without being close to the door phone camera master 2, the resident presses the play button 11 on the door phone camera master 2 (step S3). CP
U <b> 13 outputs digital data from the memory 15 recording the image of the visitor to the D / A converter 17 based on the synchronization signal output from the synchronization signal generator 16.

The signal output from the D / A converter 17 is added with a synchronization signal output from the synchronization signal generator 16 by a synchronization addition circuit 18 to become a video signal, and is sent to the monitor 8 via a video signal switcher 19. It is output (step S4). Therefore, the reproduced video can be confirmed.

[0013] Also, before the resident is near the door phone camera base unit 2 and before checking the image of the visitor,
When the visitor presses the call button of the intercom camera 1
A ringing tone is output from the door phone camera master unit 1. The monitor 8 displays the current visitor behavior and the like.

When the playback button 11 (step S3) is pressed during this confirmation, the CPU 13 reads the video of the visitor from the memory 15 based on the synchronization signal output from the synchronization signal generator 16. Is output to the D / A converter 17. The signal output from the D / A converter 17 is added with a synchronization signal output from the synchronization signal generator 16 by the synchronization addition circuit 18 to become a video signal, and is output to the monitor 8 via the video signal switcher 19. (Step S4). After the reproduction of the image until the call button 5 of the visitor is completed, the original image of the current visitor is displayed on the monitor 8. Therefore, even if the user is currently waiting for a visitor, the reproduced video can be confirmed.

Further, similarly to the function of the recording device of the door phone camera master unit, the microphone of the microphone / speaker unit 6 attached to the door phone camera slave unit 2 converts the visitor's voice into A.
/ D converter 14 converts the data into digital data,
5 (step S2). When the play button 11 (step S3) is pressed, the CPU 13 stores the digital data from the memory 15 in which the visitor's voice is
Output to the / A converter 17. The sound is reproduced via the sound signal switcher 20 (step S4). Therefore, the reproduced video and the reproduced audio can be simultaneously confirmed.

At the same time, when the reproduced image is displayed on the monitor 8 and checked, the resident is asked to press the reproduction button 11 (step S5).
When the is pressed, the CPU 12 that has detected the pressing outputs the same digital data as the digital data output from the memory 13 based on the synchronization signal. As a result, the reproduced video becomes a still image (step S6). By displaying a still image, visitors can be clearly identified. When the play button 11 is pressed again, the display of the still image is stopped and the reproduced image of the original moving image is displayed.

Further, when the image of the visitor displayed as shown in FIG.
When the user presses an arbitrary area of the touch panel 12 divided into 6 × 6 areas (step S7), the CPU 12 that has detected the pressed position discloses digital data in the memory 13 corresponding to the divided area of the pressed position. The image is enlarged and projected as shown in FIG. 4 by the image digital processing technique (step S8). By displaying the enlarged image, visitors can be clearly identified.

[0018]

Since the door phone camera communication device of the present invention has the above-mentioned configuration, the invention according to claim 1 makes it possible to surely see the image of a visitor without missing it.
By recording not only video but also audio, it is possible to make it easier for visitors to check whether there is suspicious noise or not.
Pressing the play button even while the current video is being output to the monitor
Therefore, check the recorded video until the visitor presses the call button
Is what you can do.

Further, in addition to the effect of the first aspect, the present invention according to the second aspect provides a temporary stop of the reproduced camera image, so that even if it is difficult to confirm the moving image, it is possible to ensure that Visitor can be confirmed. And
According to the third aspect of the present invention, in addition to the effect of the first aspect of the present invention, even when the visitor is small and it is difficult to confirm the visitor, the visitor can be surely confirmed by the enlarged image.

Therefore, the video and audio of the visitor before pressing the call button of the intercom slave unit can be reliably recorded and recorded, and the security performance can be reliably determined so that the visitor is not suspiciously acting. Can be increased.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of a door phone camera communication device of the present invention.

FIG. 2 is a schematic block diagram showing a configuration of a control circuit showing an embodiment of the intercom camera communication device of the present invention.

FIG. 3 is an explanatory diagram of an image displayed on a monitor of the embodiment of the door phone camera communication device of the present invention.

FIG. 4 is an explanatory diagram of an enlarged image displayed on a monitor in the embodiment of the door phone camera communication device of the present invention.

FIG. 5 is a flowchart showing the operation of the embodiment of the intercom camera communication device of the present invention.

[Explanation of symbols]

 1 Door Phone Camera Slave Unit 2 Door Phone Camera Base Unit 4 TV Camera 5 Call Button 6 Microphone / Speaker Unit 7 Human Body Detection Sensor 8 Monitor

Claims (3)

(57) [Claims] 1. A camera, microphone, speaker, door phone camera parents provided with the recording device for storing monitor and its camera image receiving camera images from intercom camera slave unit and the intercom provided with a call button and the human body detection sensor in intercom camera communication device comprising a machine, a door phone camera slave unit
When the call button is pressed, the camera image from the door phone is displayed on the monitor.
The person of the human body detection sensor installed in the door phone camera slave unit
At the time of body detection, the camera intercom slave unit and the master unit operate, recording the camera image on the recording device before the visitor presses the call button of the intercom camera slave unit, and simultaneously recording the camera image on the recording device. , as to be recorded in the recording device voice
, The door phone camera master unit memorized by the recording device
Means for reproducing the camera image, and
A live button and a call button for the visitor when the play button is pressed.
Priority is given to the recorded video from the recording device until it is pressed,
Outputs the current monitor image when the output of the image is completed
A door phone camera communication device characterized in that: 2. The door phone camera communication device according to claim 1 , further comprising means for temporarily stopping the reproduced camera image. 3. A process according to claim 1 or claim 2, wherein the having means for displaying a partially enlarged view of the camera image
Intercom camera call device.