KR20000028498A - Door-vision system using television - Google Patents

Abstract

PURPOSE: A door-vis ion system using television is provided to automatically connect television for controlling and a camera equipped on outdoors to a remote controller when a visitor calls, and to have a conversation with the visitor through a microphone equipped on the remote controller. CONSTITUTION: A door-vis ion system using television comprises an image switch(22), a first voice switch(26), a call detector(29), a remote controller(40), a second voice switch(31), a voice removing filter(33), and a micom(34). The image switch selects an image signal shot by a camera(11) in an outdoor unit(10), and a television image signal outputted from a tuner. The first voice switch selects a voice signal collected by a microphone(12) in the outdoor unit and a television voice signal outputted from the tuner. The call detector supplies a call detected signal to the micom by recognizing a press of a call button(13) in the outdoor unit. A microphone(41) is mounted on the remote controller. The second voice switch delivers a voice signal of a remote controller receiver to the first voice switch. The voice removing filter supplies a pure television remote control signal to the micom, by removing voices outputted in the remote controller receiver. The micom converts the image switch and the first/the second switch, and controls so that the image signal of the camera can be outputted to a CRT(Cathode Ray Tube)(24) via an image processor(23), and the voice signals of the microphones(12,41) can be outputted to speakers(28,14) via a voice processor(27) and a voice filter(30).

Description

Door Vision System Using Television

The present invention relates to a door vision system that can check the identity of the visitor through the camera and to have a conversation. In particular, the camera unit installed in the remote control TV and the outdoor unit is automatically connected when there is a call of the visitor. The present invention also relates to a door vision system using a television that enables a conversation with a micro visitor provided in a remote controller.

The door vision system, a kind of home security system, is very useful for verifying the identity of visitors first when a visitor rings in the home, so it can prevent unwanted visitor access and illegally invade others disguised as visitors. Can be prevented in advance.

The door vision system is largely divided into outdoor equipment and indoor equipment. The outdoor equipment includes a CCD camera for photographing a visitor, a microphone, a call button, and a speaker for collecting a visitor's voice. Includes a monitor device for outputting an image of a visitor transmitted from a camera, and a handset of a speaker and a microphone.

Therefore, when a visitor is called, the camera and monitor are powered by operating the handset indoors, so that the person in the room can check the identity of the visitor through the speaker and the monitor.

However, since the door screen of a general door vision is small, it is difficult to identify the visitor's identity, and when a call is made by pressing the call button from the outside while watching TV, the call sound is buried by the audio output of the television to recognize whether there is a visitor. You may not be able to. If the monitor screen is enlarged in consideration of the former, it may damage the aesthetics of the living room and it may be expensive. In the latter case, the call volume can be increased to ensure that the visitor's call is recognized even while watching television, but if the user is not watching television or there is a call at midnight, the sound may be too loud and the indoor residents may be surprised. .

It is an object of the present invention to combine a visitor's outdoor equipment with a remote control control television in a door vision system capable of confirming a visitor's identity through a camera and having a conversation, and by installing a microphone in the remote control, The present invention provides a door vision system using a television that automatically converts a television into a door vision monitor and enables a conversation with a visitor using a microphone installed in a remote controller.

1 is a circuit block diagram of a door vision system of the present invention.

2 is a flowchart illustrating the operation of the present invention.

※ Explanation of symbols about main part of drawing ※

10: outdoor unit 11: the camera

12,41: microphone 13: call button

14,28: Speaker 20: Indian Fisherman

21,25 amplifier 22 video switch

23: image processing unit 26, 31: voice switch

27: voice processing unit 29: call detector

30: voice filter 32: remote control receiver

33: voice removal filter 34: microcomputer

40: remote control

As a means for achieving the above object, the present invention provides a video switch for selecting the video signal captured by the camera of the outdoor unit and the television video signal output from the tuner, and the audio signal collected by the microphone of the outdoor unit A first voice switch for selecting a television audio signal output from the tuner, a call detector for providing a call detection signal to a microcomputer by recognizing a press of a call button of an outdoor unit, a remote controller equipped with a microphone, A remote control signal receiver for receiving a remote transmission signal, a second voice switch for transmitting a voice signal of the remote control receiver to the first voice switch, and a pure television remote control signal to the microcomputer by removing the voice from the output of the remote control receiver. The video switch and the first and second audio switches are switched in accordance with the provided audio removing filter and the call detection signal input. The video signal of the camera is via the image processing unit is output to the CRT audio signal of the microphone is characterized by including a microcomputer for controlling to be output to the speaker through the audio processing unit and an audio filter.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 1, the circuit block configuration of the system of the present invention can be seen that the outdoor unit 10, the indoor unit 20, and the remote controller 40 are large.

The outdoor unit 10 includes a camera 11, a microphone 12, a call button 13, and a speaker 14.

The indoor language unit 20 is an image amplifier 21 for amplifying an image signal photographed by the camera 11 of the outdoor unit 10, the image output signal of the image amplifier 21 and the output from the tuner Amplify the audio signal collected by the video switch 22 which selects one of the television video signals and outputs it to the video processor 21 connected to the CRT 24 and the microphone 12 of the outdoor unit 10. A first voice switch for selecting one of the voice amplifier 25, the voice output signal of the voice amplifier 25, and the television voice signal output from the tuner and outputting the voice amplifier to the voice processor 27 having the speaker 28. (22), a call detector (29) for recognizing pressing of the call button (13) of the outdoor unit and providing a call detection signal to the microcomputer (34), and a remote transmission signal of the remote controller (40) to receive a second signal. The voice signal is output to the first voice switch 26 through the voice switch 31. The voice removing filter 33 filters the remote control receiver 32 for outputting the remote control signal to the remote control input terminal of the microcomputer, and the voice signal input through the voice amplifier 25 and the second voice switch 31. The voice filter 30 output to the speaker 14 of the outdoor unit and the remote control signal through the voice removing filter select and control the reception mode and the channel of the television, and the image switch 22 when the call detection signal is input. And a microcomputer 34 for switching the first and second voice switches 26 and 31.

The remote control 40 is provided with a microphone 41.

Referring to the operation of the present invention configured as described above in detail.

When the visitor presses the call button 13 installed in the outdoor unit 10, the call signal is detected by the call detector 29 and input to the call input terminal Cin of the microcomputer 34. Accordingly, the microcomputer 34 outputs a signal, for example, a high level signal, for switching the first and second audio switches and the video switch from the television reception mode to the door vision mode at its switch signal output terminal Vout.

The switching signal of the audio and video switch occurs only when the television is turned on. If the television is turned off, the microcomputer 34 applies power to the television and the position of the audio and video switch is set to the door vision mode. Control to position

When the television of the indoor language unit 20 is switched from the television broadcast signal or the video tape reproduction video signal reception mode to the door vision mode, the video signal photographed by the camera 11 of the outdoor unit 10 is converted into an image amplifier 21. And the visitor's video signal inputted to the image processing unit 23 through the image switch 22 and processed by the image processing unit 23 are output on the CRT 24 of the television.

In addition, the voice signal of the visitor, which is input through the microphone 12 of the outdoor unit 10, is also input to the voice processing unit 27 through the voice amplifier 25 and the first voice switch 26. The voice of the visitor processed at is output through the speaker 28. At this time, the visitor's own voice is output to the speaker 14 of the visitor through the voice amplifier 25 and the voice filter 30.

If the visitor's image and voice are output through the television screen indoors, the person in the room uses a microphone 41 installed on one side of the remote control 40 to check the identity of the visitor or visitor. When the indoor user's voice signal is wirelessly input to the remote control receiver 32 through the microphone 41 on the remote controller, the remote controller receiver 32 processes the input signal to generate a second voice switch ( 31) and the voice removing filter 33.

The indoor user's voice signal passing through the second voice switch 31 is output to the speaker of the outdoor unit 10 through the voice filter 30 and through the first voice switch 26, the television speaker 28. Is output.

In addition, the voice removing filter 33 extracts only the remote control signal for remote control of the television from the synthesized signal of the voice signal output from the remote control receiver 32 and the remote control signal and inputs it to the remote control input terminal REin of the microcomputer.

As such, when the television viewer presses a restoration key (not shown) provided in the remote controller 40 to restore the television screen which has been switched to the door vision mode by the visitor's call to the normal broadcast signal reception state, the television is in the normal television reception mode or The video receiving mode is switched.

2 is a flowchart schematically illustrating a door vision switching operation performed in the microcomputer of the present invention. As referred to herein, if there is a call bell, it is determined whether the television is powered on, and if the power is off, the television is switched to the door vision mode after the power is supplied.

As described above, while the television is switched to the door vision mode, the television restoration key input for releasing the door vision is performed while the conversation with the visitor is performed through the microphone provided in the remote controller. Switch.

The present invention as described above is equipped with a microphone on the remote control attached to the television, and the remote control of the television connected to the outdoor device of the door vision system, when the call by the visitor while watching television, the television is It automatically switches to door vision mode and can talk to the visitor using the microphone on the remote control, so that it can respond to the visitor's call without delay, and can also accurately identify the visitor's identity on the large TV screen. Bring.

Claims (1)

Collected by the image switch 22 for selecting the video signal captured by the camera 11 of the outdoor unit 10 and the television video signal output from the tuner, and the microphone 12 of the outdoor unit 10 A call detector for recognizing the press of the call button 13 of the outdoor unit and the first voice switch 22 for selecting the audio signal and the television audio signal output from the tuner and providing a call detection signal to the microcomputer 34 ( 29, a remote controller 40 equipped with a microphone 41, a remote controller receiver 32 for receiving a remote transmission signal of the remote controller 40, and a voice signal of the remote controller receiver for the first voice switch 26. And a second voice switch 31 for transmitting the voice signal, a voice removing filter 33 for removing a voice from the output of the remote control receiver and providing a pure television remote control signal to the microcomputer 34, and the call detection signal input. Switch the image switch 22 and the first and second audio switches 26 and 31 accordingly. The video signal of the camera is output to the CRT 24 via the image processor 23, and the audio signals of the microphones 12 and 41 are passed to the speakers 28 and 14 through the audio processor 27 and the voice filter 30. Door vision system using a television comprising a microcomputer (34) for controlling the output.