KR20000008244A - Portable digital video monitoring system - Google Patents

Abstract

PURPOSE: The system enables the wearing of a video telephone system and enables to use various telephone communication networks and can perform the video remote monitoring at a great distance using a handset of a general phone and a wire/wireless network. CONSTITUTION: The system comprises: an image codec part(52) coding/decoding an image signal photographed by a camera; a voice codec part(54) coding/decoding an voice signal inputted by connecting with the general phone; a signal mixing/separating part(55) which mixes and separates the image signal and the voice signal outputted from the image codec part and the voice codec part and processes an information signal; a control part(56) receiving/transmitting the mixed/separated signal and controlling the whole system; a memory(57) storing all the information and performing the reception/transmittance with the control part; and a communication interface part(58) inputting/outputting the image and the voice information through an external phone line according to the communication protocol. The system can be used as a digital still camera and can monitor by watching the working fields.

Description

Portable Digital Video Monitoring System

The present invention relates to a portable digital image monitoring system.

More particularly, the present invention relates to a portable digital video monitoring system that makes it possible to easily monitor and call a video by using a wired / wireless network of a conventional video telephone with a counterpart anytime, anywhere.

The general telephone is only able to transmit and receive voice, so you cannot see the other's face or especially important data during the call, and you need to use the facsimile when you want to see the other's data directly.

In modern life, which demands the convenience of living, many studies have been conducted on video telephones and video communication systems that can simultaneously transmit and receive video information and data signals together with voice signals. However, the performance and quality of the product is somewhat lowered, there is a difficulty that the installation cost of the user and the product is expensive.

1 is a schematic device block diagram of a conventional video telephone system.

As shown, a camera unit 11 for photographing an object by a lens, an image codec unit 12 for encoding and decoding an image signal photographed by the camera unit 11, and an image A display 13 for displaying a video signal processed by the codec unit 12 on a screen, a microphone unit 14 to which an audio signal is input, and an audio signal to encode and decode the audio signal input to the microphone unit 14. The codec unit 15, the speaker 16 which amplifies and outputs the audio signal processed by the audio codec unit 15, and the video and audio signals output from the video codec unit 12 and the audio codec unit 15. A signal synthesizing / separating unit 17 for synthesizing or separating information based on a synchronization signal and processing information signals, and a control unit for transmitting and receiving signals synthesized and separated by the signal synthesizing / separating unit 17 and controlling the entire system ( 18 and a memory 19 for transmitting and receiving to and from the control unit 18 and storing all information. , Transmitted and received with the controller 18 and is configured as a communication interface 20 for inputting and outputting video and audio information to an external telephone line in accordance with the communication protocol.

Therefore, the conventional video telephone system configured as described above is not portable and is used for video telephony purposes, and therefore is not only used in extremely limited applications and places, but also has a high price and high compression amount of moving images for telephone line transmission. There was a problem of this deterioration.

Accordingly, an object of the present invention is to provide a portable digital video monitoring system capable of carrying a video telephone system using a handset and a wired / wireless network of a general telephone, using various telephone communication networks, and capable of remotely monitoring a video remotely. Its purpose is to.

1 is a schematic device block diagram of a conventional video telephone system;

2 is a block diagram of a portable digital image monitoring system of the present invention.

Explanation of symbols on the main parts of the drawings

51: camera unit 52: video codec unit

53: display 54: voice codec unit

55: signal synthesis / separation unit 56: control unit

57: memory 58: communication interface

The portable digital image monitoring system according to the present invention for achieving the above object comprises a camera unit for photographing an object by a lens, an image codec unit for encoding and decoding an image signal photographed by the camera unit, and an image codec unit. A display for displaying moving images and still images processed on the screen, a voice codec unit for connecting to a general telephone and encoding and decoding an input audio signal, and a video and audio signal output from the video codec unit and the audio codec unit. A signal synthesizing / separating unit for synthesizing or separating information based on a signal and processing information signals, a control unit for transmitting and receiving a signal synthesized and separated by the signal synthesizing / separating unit and controlling the entire system, and transmitting / receiving all information Memory to store and transmit / receive with control unit, and video and sound through external telephone line according to communication protocol It consists of a communication interface for inputting and outputting sex information.

Hereinafter, a configuration and an embodiment of a portable digital image monitoring system of the present invention will be described with reference to the accompanying drawings.

2 is a block diagram of a portable digital image monitoring system of the present invention.

As shown, the camera unit 51 for photographing an object by the lens, the image codec unit 52 for encoding and decoding the video signal photographed by the camera unit 51, and the image codec unit 52 A display 13 for displaying a video signal processed by the screen, a voice codec unit 54 for encoding and decoding a voice signal, a video output from the video codec 52 and a voice codec unit 54, and A signal synthesizing / separating unit 55 for synthesizing or separating an audio signal based on a synchronization signal and processing an information signal, and transmitting / receiving a signal synthesized and separated by the signal synthesizing / separating unit 55 to control the entire system. A control unit 56, a memory 57 for transmitting and receiving information to and from the control unit 56, and a communication interface unit for transmitting and receiving video and audio information to and from an external telephone line according to a communication protocol. 58).

In addition, a plurality of cameras may be connected to the image codec unit 52, and the plurality of captured image signals are displayed according to a control command of the controller 56 continuously or at predetermined time periods.

In addition, the image codec unit 52 may be displayed on the display 53 and may be connected to another external display device and may be displayed.

In addition, the voice codec unit 54 is capable of connecting a general telephone, characterized in that the transmission and reception by the handset of the general telephone.

In addition, the communication interface 58 is capable of transmitting and receiving to and from an external wired communication telephone line by a built-in wired protocol, and can also transmit and receive to an external wireless communication network by a built-in wireless protocol.

Referring to FIG. 2, the portable digital image monitoring system of the present invention configured as described above is as follows.

That is, when a call is made, the caller is photographed by a lens (not shown in the figure) built in the camera unit 51, and the photographed caller's image is converted into an electrical signal, so that an analog signal is transmitted to the image codec unit 52. Is entered.

The input analog signal is encoded and decoded by the image codec unit 52, and then an information signal is transmitted to the signal synthesizer / separator 55. In addition, the talker's voice is transmitted through the telephone talker, and the transmitted voice signal is transmitted to the signal synthesizer / decoder 55 by encoding and decoding by the voice codec unit 54.

The video and audio signals transmitted to the signal synthesizing / separating unit 55 are synthesized and transmitted to the control unit 56. The synthesized synthesized signal is also stored in the memory 57 according to the command condition given to the control unit 56. It is transmitted to the outside via the interface unit 58.

At the time of transmission to the outside, it is connected to the video telephone of the other party using a wired communication telephone line or a wireless communication network telephone line by a protocol method connected inside the communication interface unit 58 to transmit and receive with the other party.

In addition, the other's face or voice proceeds in the reverse order of the above procedure. That is, the audio and video signals are separated by the signal synthesizing / separating unit 55 from the wired communication telephone line or the wireless communication network telephone line, and the separated video signals are separated by the video codec unit 52. Through the display 53, the face or image of the other party is displayed.

In addition, the separated voice signal is transmitted to the handset of the telephone via the voice codec unit 54, and eventually transmitted and received to the telephone while watching still or moving picture screens displayed on each display 53 between each other. .

In addition, even if the display 53 is not mounted on the video phone, it is possible to connect to another display device externally and also to a TV screen or a computer monitor so that the other party or his / her face or facial expression can be talked on the phone.

In addition, since the camera unit 51 can be equipped with a plurality of cameras, when a plurality of cameras are mounted in a work space of a large space, or in a remote control room, a location where security is required or a place to be continuously observed is photographed. If you need to be equipped with the digital image monitoring system of the present invention can be managed and observed while monitoring from a distance.

In other words, the monitoring function detects the movement of the human body by a sensor (not shown in the figure) mounted on the camera unit 51, and automatically turns on and off the lights according to the bright and dark surroundings and adjusts the amount of light. By an automatic detector (not shown).

That is, the camera unit 51 keeps the lighting in the off state and detects the movement of the human body in front of the lens mounted on the camera unit 51 and measures the wavelength according to the movement of the human body and simultaneously turns on the illumination. . At this time, the amount of light is measured according to the brightness and darkness of the surroundings, and the subject is photographed by adjusting the appropriate brightness with the automatic detector.

The lighting is automatically turned off after the photographing is finished, and the photographed information may be stored in the memory 57 or transmitted to a central remote control room (not shown) through a telephone line.

In addition, when the power is turned on in the central remote control room at a long distance by the telephone line, the power is supplied to the camera unit 51 for monitoring, and the on-line system is configured to operate the automatic detector. In particular, the controller 56 has a password function so that only a person who knows the password has a special management function so that the stored information can be monitored and read.

Another feature is that it is small and light for easy portability, easy to install wherever wired / wireless phone calls are possible, and when connected directly to the phone cord, it is easy to talk with the other party through video anytime, anywhere. There is a big advantage to this.

In addition, since it can be carried at any time, the camera unit 51 and the memory 57 can be utilized as a digital still camera (DSC). In other words, it is possible to immediately photograph a site or an urgent document in which important work is performed and temporarily store it in the memory 57, or immediately transmit information using a wired or wireless communication network.

Therefore, the portable digital image monitoring system of the present invention has a monitoring function that requires continuous observation of a remote place, a video telephone function and a camera equipped with a small, light, portable, video communication function that can be connected with a telephone line anytime, anywhere, and have a video conversation. It is a versatile portable digital image monitoring system that can be used as a still camera function using memory.

The portable digital video monitoring system according to the present invention constructed and functioning as described above is compact and light, easy to carry, and a wired / wireless telephone call is possible by utilizing a wired / wireless network of a conventional telephone in a conventional video telephone. Since it is directly connected to and used, there is an advantage that it is easy to monitor and make a video call with the counterpart anytime and anywhere.

In addition, it can be used for digital still cameras that can instantly store and temporarily store important work or urgent documents, and can transmit information immediately using wired / wireless communication networks. It also has the effect of monitoring and monitoring the job site.

Claims (5)

A camera unit for photographing an object by a lens; An image codec unit which encodes and decodes an image signal photographed by the camera unit; A display for displaying a moving image and a still image processed by the image codec unit on a screen; A voice codec unit connected to a general telephone and configured to encode and decode an input voice signal; A signal synthesizing / separating unit for synthesizing or separating the video and audio signals output from the video codec unit and the audio codec unit based on a synchronization signal and processing an information signal; A control unit for transmitting and receiving a signal synthesized and separated by the signal synthesizing / separating unit and controlling the entire system; A memory for transmitting and receiving with the controller and storing all information; And And a communication interface configured to transmit / receive to / from the control unit and to input and output video and audio information through an external telephone line according to a communication protocol. The method of claim 1, A plurality of cameras may be connected to the image codec unit, and the plurality of captured image signals may be displayed continuously or at predetermined time periods according to a control command of the controller. According to claim 1, wherein the image codec unit; The display can be displayed on the display, and the portable digital image monitoring system, characterized in that the display can be connected to another external display device. According to claim 1, The communication interface unit; A portable digital video monitoring system, characterized in that transmission and reception are possible with an external wired communication telephone line by a built-in wired protocol, and transmission and reception also with an external wireless communication telephone line by a built-in wireless protocol. According to claim 1, The camera unit; A portable digital image monitoring system comprising a detection sensor for detecting a human body movement and an automatic detector for automatically turning on / off the lighting according to the surrounding light and dark and adjusting the amount of light.