KR20010100167A - Device and method for synchronous playback of image and voice data through guarding camera - Google Patents

Abstract

The present invention relates to a method and apparatus for simultaneously reproducing video and audio data through a surveillance camera, wherein the video and audio data are recorded and recorded in real time through a plurality of cameras and microphones installed in a monitoring place such as a house or an individual workplace. By simultaneously reproducing and outputting by the application program, the monitors located on the fixed remote location as well as the monitors on the move can monitor the situation information of the monitoring location in real time regardless of time and place by accessing the corresponding server through the Internet network. The present invention relates to a method and apparatus for simultaneously reproducing video and audio data through a surveillance camera that can be provided. A feature of the present invention is to provide a real-time web video transmission apparatus including a plurality of cameras respectively installed at the main positions of the monitoring place to capture analog video data signals in real time and a plurality of microphones receiving analog audio data signals in real time. The method may include a server that provides simultaneous playback information by matching the analog video data signal and the analog audio data signal in real time through an internet network.

Description

Method of simultaneous playback of video and audio data through surveillance cameras and apparatus therefor {DEVICE AND METHOD FOR SYNCHRONOUS PLAYBACK OF IMAGE AND VOICE DATA THROUGH GUARDING CAMERA}

The present invention relates to a method and a device for simultaneously reproducing video and audio data through a surveillance camera, and more particularly, to be photographed and recorded in real time through a plurality of cameras and microphones installed in a surveillance place such as a house and an individual workplace. By simultaneously playing and outputting video and audio data by an application program, the watcher who is located at a fixed remote location as well as the watcher who is on the move can access the corresponding server in real time regardless of time and place by accessing the corresponding server through the Internet. The present invention relates to a method and apparatus for simultaneously reproducing video and audio data through a surveillance camera capable of receiving situation information.

Recently, with the diversification of the Internet service, a system for monitoring and observing a specific place using a small camera has been developed to store images captured by the camera in many fields such as banks, residential facilities, hospitals, public places, and educational facilities. In other words, the stored video is provided in real time to a remote monitor through the Internet.

However, the conventional real-time web image transmission system as described above only provides the remote monitor with the image of the specific place photographed through the camera in real time, and the remote monitor recognizes the voice signal generated at the specific place. There was a problem that can not be done.

The present invention is to solve the above-mentioned conventional problems, the purpose is to install a plurality of cameras, as well as microphones for recording the audio signal in the monitoring place, such as houses and individual businesses, the image captured in real time from the camera And a monitor located at a remote location fixed by a server that receives and matches voice signals recorded in real time from the microphone and provides them at the same time. It is an object of the present invention to provide a method and apparatus for simultaneously reproducing video and audio data through a surveillance camera that can be provided in real time without receiving.

1 is a block diagram showing an apparatus for simultaneously reproducing video and audio data through a surveillance camera according to the present invention.

2 is a flow chart showing a process of the simultaneous playback of video and audio data through a surveillance camera according to the present invention.

3 is a flowchart specifically illustrating a video and audio data simultaneous output step of FIG. 2 according to the present invention.

<Description of main parts of drawing>

10 camera 20 microphone

30 server 31 multi-video card unit

32: multi video data storage unit 33: multi sound card unit

34: multi-sound data storage unit 35: simultaneous playback unit

40: monitoring unit 50: speaker

Features of the simultaneous playback of video and audio data through the surveillance camera according to the present invention for achieving the above technical problem,

In the real-time web video transmission device comprising a plurality of cameras respectively installed at the main location of the monitoring site to capture the analog video data signal in real time and a plurality of microphones to receive the analog audio data signal in real time, the analog video data signal And a server providing simultaneous reproduction information by matching the analog voice data signal in real time through the Internet network.

In addition, a feature of the simultaneous playback of video and audio data through the surveillance camera according to the present invention,

A video capture and voice recording step in which analog video data is captured in real time through a plurality of cameras respectively installed at main positions of a monitoring place, and analog voice data is recorded in real time through a plurality of microphones; A video and audio data input step in which the analog video data is input to a multi video card unit and the analog audio data is input to a multi sound card unit in the video capture and voice recording step; In the video and audio data input step, the analog video data is converted into digital video data by a multi-video analog / digital converter and at the same time the analog audio data is converted into digital audio data by a modulator. step; A video and audio data storage step in which the digital video data is compressed and stored in a multi-video data storage unit and the digital audio data is stored in a multi-sound data storage unit in the video and audio analog / digital conversion step; And simultaneously storing the digital video and the audio data in the video and audio data storage step, and simultaneously outputting the video and audio data by simultaneously matching and indexing the index data by the simultaneous playback unit.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing an apparatus for simultaneously reproducing video and audio data through a surveillance camera according to the present invention.

As shown, the configuration of the present invention is largely composed of a plurality of cameras 10, a plurality of microphones 20, the server 30, the monitoring unit 40 and the speaker 50.

The plurality of cameras 10 are respectively installed at the main location of the monitoring place to capture analog video data signals in real time, and the plurality of microphones 20 are respectively installed at the main location of the monitoring place to provide analog audio data signals. Receive input in real time.

The server 30 includes a multi video card unit 31, a multi video data storage unit 32, a multi sound card unit 33, a multi sound data storage unit 34, and a simultaneous playback unit 35. And configured to simultaneously reproduce the analog video data signals input from the plurality of cameras 10 and the analog audio data signals input from the plurality of microphones 20 and to a fixed remote site or a monitor on the move. Provides real-time status information.

The multi-video card unit 31 is composed of a plurality of bars, each of which is composed of an analog video data signal input terminal 31a, an image output terminal 31b, a multi-video analog / digital converter 31c, and multi It is composed of a video application program interface unit 31d.

The analog image data signal input terminal unit 31a is in one-to-one correspondence with the plurality of cameras 10 to receive the analog image data signals transmitted through the plurality of cameras 10 in real time.

The multi-video analog / digital converter 31c converts the analog video data signal inputted to the analog video data input terminal 31a into a digital video data signal, and the multi-video application program interface unit (API: Application). The program interface 31d receives the digital video data signal converted from the multi-video analog / digital converter 31c and outputs it normally.

The video output terminal unit 31b stores the digital video data signal output from the multi-video application program interface unit 31d in the multi-video data storage unit 32 and outputs the same through the simultaneous playback unit 35. The digital image data signal is output to the monitoring unit 40.

In addition, when the monitor outputs and monitors a specific digital video data signal already stored in the multi-video data storage unit 32, the monitor monitors the specific digital video data signal reproduced by the simultaneous playback unit 35. Output to the monitoring unit 40.

The multi-video data storage unit 32 compresses and stores digital image data signals respectively output through the multi-video application program interface unit 31d of the plurality of multi-video card units 31.

As the compression storage method, an M-JPEG (Motion-JPEG) method and a wavelet method are used to implement a high compression ratio by applying a unique compression algorithm.

The M-JPEG method is a format that temporally lists JPEG (Joint Photographic Experts Group) images that are easy to edit on a frame basis. Therefore, the compression ratio is the same as that of the above JPEG, and in the case of high quality, 1:10 to 1:20 and up to 1:30 is possible. As it does not remove temporal redundancy as in the Moving Picture Experts Group (MPEG), it shows a high compression speed. In addition, frame-by-frame editing, which is not possible in the MPEG, is easy due to the association between frames.

The wavelet method is a next generation video compression technology, and has a compression ratio more than twice that of the MPEG method. The wavelet method supports superior compression ratio and advanced encoding technology compared to the MPEG method, so the transmission speed and the image quality are clear, so that the still image and the moving image can be corrected and transmitted, and image processing is performed with any pixel. It is possible to vary the product according to the parameters of the conversion. In addition, Fourier's technology enables the compression of even larger images without the usual outline effects, and is the only software solution that compresses quickly.

According to the M-JPEG method and the wavelet method, the image quality is stored in a state in which the image quality is guaranteed to the maximum and occupies a minimum storage space. In addition, even when searching the moving image compressed and stored in the hard disk it is possible to immediately (Random access) by the date and time. In addition, even in a display, the image processing speed is maximized, so that it is displayed at a full moving picture level. In addition, by directly controlling the hardware at the level of the library (VXD) implemented in itself, it is possible to prevent unnecessary load of the central processing unit (CPU) during video processing.

The multi sound card unit 33 includes an analog audio data signal input terminal unit 33a, a modulator 33b, a sound controller 33c, a multi sound application program interface unit 33d, and a digital / analog converter. It consists of 33e and the output terminal 33f.

The analog audio data signal input terminal unit 33a is preferably composed of 1 to 8 jacks, and is input from the plurality of microphones 20 as the plurality of microphones 20 are connected in a one-to-one correspondence. Each analog voice data signal is input in real time.

The modulator 33b receives a plurality of analog voice data signals transmitted from the analog voice data signal input terminal unit 33a and converts them into digital voice data signals.

The sound controller 33c controls a plurality of digital voice data signals converted through the modulator 33b to be normally output through the multisound application program interface 33d.

The multisound application program interface unit 33d normally outputs the plurality of digital voice data signals under the control of the sound controller 33c.

The digital / analog converter 33e stores the digital voice data signal output from the multisound application program interface unit 33d in the multisound data storage unit 34 and simultaneously controls the simultaneous playback unit 35. The digital voice data signal reproduced through the input signal is converted into an analog voice data signal.

In addition, when the monitor wants to output a specific digital audio data signal already stored in the multi-sound data storage 34, the specific digital video data signal reproduced by the simultaneous playback unit 35 is specifically. When the specific digital voice data signal corresponding to the input through the multi-sound application program interface unit 33d is controlled by the sound controller 33c, the specific digital voice data signal is converted into an analog voice data signal. .

The output terminal 33f outputs the analog audio data signal converted and input from the digital / analog converter 33e to the speaker 50.

The multi sound data storage unit 34 stores a plurality of digital voice data signals input from the multi sound application program interface unit 33d of the multi sound card unit 33.

The simultaneous playback unit 35 is matched by the common index data from the multi-video data storage unit 32 and the multi-sound data storage unit 34 so that the video and audio data can be simultaneously reproduced.

The process of the simultaneous playback will be described in more detail as follows.

The voice data stored in the multi sound data storage 34 is stored as continuous data. However, the image data stored in the multi-video data storage unit 32 is stored in units of frames, which are discontinuous data. Accordingly, the simultaneous playback unit 35 matches the common index data of the video data and the audio data which are respectively stored in two different ways. In other words, each frame of the image data is sequentially reproduced in units of seconds, and at the same time, the index data of the same audio data as the index data of the image data to be reproduced is read and reproduced simultaneously.

2 is a flowchart illustrating a process of simultaneously reproducing video and audio data through a surveillance camera according to the present invention.

As shown, the method of the present invention, the image capture and audio recording step (S10), video and audio data input step (S20), video and audio analog / digital conversion step (S30), and video and audio data storage Step S40 and the simultaneous video and audio data output step (S50).

In the video capture and voice recording step (S10), analog video data signals are captured in real time through a plurality of cameras 10 installed at main positions of a monitoring place, and analog voice data through a plurality of microphones 20 at the same time. The signal is recorded in real time.

In the video and audio data input step S20, analog video data signals captured in real time through the plurality of cameras 10 in the video capture and voice recording step S10 may include a plurality of multi-video card units 31. The analog audio data signals input to the analog video data signal input terminal unit 31a and recorded in real time through the plurality of microphones 20 are transferred to the analog audio data signal input terminal unit 33a of the multi-sound card unit 33. Input step.

The video and audio analog / digital conversion step (S30) is the analog and the analog video data signal input terminal unit 31a of the plurality of multi video card units 31, respectively, in the video and audio data input step (S20). The analog audio data signal is converted into the digital video data signal through the multi-video analog / digital converter 31c and simultaneously input to the analog audio data signal input terminal unit 33a of the multi-sound card unit 33. Is a step of converting the digital voice data signal through the modulator 33b.

The video and audio data storage step (S40) is the digital video data signal converted by the multi-video analog / digital conversion unit 31c in the video and audio analog / digital conversion step (S30) is the multi-video application program The digital voice data signal, which is normally output through the interface unit 31d, is compressed and stored in the multi-video data storage unit 32, and is converted by the modulator 33b, is controlled by the control of the sound controller 33c. This is a step of being normally output through the sound application program interface unit 33d and stored in the multi-sound data storage unit 34.

Simultaneously outputting the video and audio data (S50), the digital video and audio data are respectively stored in the video and audio data storage step (S40), and the digital video data compressed and stored in the multi-video data storage unit 32 is simultaneously. Simultaneously reproduced by the reproducing unit 35 and displayed on the monitoring unit 40, digital audio data having the same value as the index data of the digital image data reproduced sequentially is reproduced by the simultaneous reproducing unit 35. The audio signal is reproduced, converted into analog voice data signals by the digital / analog converter 33e, and output to the speaker 50.

3 is a flowchart specifically illustrating a video and audio data simultaneous output step of FIG. 2 according to the present invention.

As shown, the video and audio output process according to the present invention comprises the video data playback step (S51), video index data search step (S52), voice index data search step (S53), video and audio index data Matching step (S54) and video and audio data playback step (S55).

The image data reproducing step (S51) is a step in which the digital image data is stored in the multi-video data storage unit 32 and each frame is sequentially reproduced by the simultaneous reproducing unit 35 in units of seconds.

In the image index data retrieval step (S52), index data of digital image data sequentially reproduced in the image data reproducing step (S51) is retrieved from the multi-video data storage unit 32 by the simultaneous reproducing unit 35. It is a step.

In the voice index data retrieval step (S53), the multi-sound data has the same index data of the digital voice data as the index data of the digital image data retrieved by the simultaneous playback unit 35 in the image index data retrieval step (S52). The search is performed from the storage unit 34.

The video and audio index data matching step S54 may include index data of the digital video data searched in the video index data search step S52 and index data of the digital audio data searched in the audio index data search step S53. The matching is performed by the simultaneous reproducing unit 35.

The simultaneous playback of the video and audio data (S55) is performed by matching the index data of the digital video data with the index data of the digital audio data in the video and audio index data matching step (S54). In step S51, the digital audio data corresponding to the digital video data reproduced is simultaneously reproduced.

Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the above-described embodiments, and the present invention is not limited to the above-described embodiments without departing from the spirit of the present invention as claimed in the claims. Various modifications can be made by those skilled in the art, and such modifications are intended to fall within the scope of the appended claims.

As described above, according to the method and apparatus for simultaneously reproducing video and audio data through a surveillance camera according to the present invention, video and audio signals generated at surveillance sites such as houses and individual workplaces can be transmitted through a server on the web. Simultaneously providing to the remote monitor, the remote monitor recognizes and judges the situation information from the monitoring place more clearly and, in the event of an emergency, can take optimal measures to minimize the risk of an accident. It can work.

Claims (7)

In the real-time web image transmission apparatus including a plurality of cameras (10) installed at each of the main locations of the monitoring place to capture analog video data signals in real time and a plurality of microphones (20) for receiving analog audio data signals in real time. , Simultaneous playback of video and audio data through a surveillance camera, characterized in that it comprises a server 30 for providing real-time playback information by matching the analog video data signal and the analog audio data signal through an internet network. . The method of claim 1, wherein the server 30 A multi video card unit 31 for converting analog image data input from the plurality of cameras 10 into digital image data and outputting the digital image data; A multi video data storage unit 32 for storing the digital image data output from the multi video card unit 31; A multi sound card unit 33 for converting analog voice data input from the plurality of microphones 20 into digital voice data and outputting the digital voice data; A multi sound data storage unit 34 storing the digital voice data output from the multi sound card unit 33; And The digital video data and the digital audio data are respectively stored in the multi-video data storage 32 and the multi-sound data storage 34, and simultaneously matched and reproduced with common index data. Simultaneous playback of video and audio data through a surveillance camera, characterized in that the configuration. A multi video card unit 31 for converting analog image data input from a plurality of cameras 10 into digital image data and outputting the digital image data; A multi video data storage unit 32 for storing the digital image data output from the multi video card unit 31; A multi sound card unit 33 for converting analog voice data input from the plurality of microphones 20 into digital voice data and outputting the digital voice data; A multi sound data storage unit 34 storing the digital voice data output from the multi sound card unit 33; And The digital video data and the digital audio data are respectively stored in the multi video data storage unit 32 and the multi sound data storage unit 34, and simultaneously matched and reproduced with common index data. Simultaneous playback of video and audio data through a surveillance camera, characterized in that the configuration. The method of claim 3, wherein the multi-video card unit 31 An analog image data input terminal unit 31a for receiving the analog image data transmitted from the plurality of cameras 10 in real time; A multi-video analog / digital converter 31c for converting the analog video data input from the analog video data input terminal 31a into digital video data; A multi-video application program interface unit 31d for normally outputting the digital image data converted from the multi-video analog-digital converter 31c; And And a video output terminal unit (31b) for outputting the digital video data reproduced by the simultaneous playback unit (35). The multi-sound card unit 33 according to claim 3 or 4, wherein An analog voice data input terminal unit 33a for receiving the analog voice data transmitted from the plurality of microphones 20 in real time; A modulator (33b) for converting the analog voice data input from the analog voice data input terminal unit (33a) into digital voice data; A sound controller (33c) for controlling the digital voice data converted by the modulator (33b) to be normally output through the multi-sound application program interface (33d); A digital / analog converter 33e for converting the digital voice data reproduced by the simultaneous reproducing unit 35 into analog voice data; And And an output terminal (33f) for outputting the analog audio data signal converted from the digital / analog converter (33e) to a speaker (50). The video capture and voice recording step in which analog video data is captured in real time through a plurality of cameras 10 respectively installed at major positions of a monitoring site, and analog voice data is recorded in real time through a plurality of microphones 20. S10); In the video capture and voice recording step (S10), the analog video data is input to the multi-video card unit 31 and the analog audio data is input to the multi-sound card unit 33. ); In the video and audio data input step S20, the analog video data is converted into digital video data by the multi-video analog / digital converter 31c and at the same time, the analog audio data is converted by the demodulator 33b. Video and audio analog / digital conversion step (S30); In the video and audio analog / digital conversion step (S30), the digital video data is compressed and stored in the multi-video data storage unit 32 and at the same time the digital audio data is stored in the multi-sound data storage unit 34 and Storing voice data (S40); And In the video and audio data storage step (S40), the digital video and audio data are stored, and simultaneously the index data are matched with each other by the simultaneous playback unit 35, and simultaneously the video and audio data output step (S50) Simultaneous playback method of video and audio data through a surveillance camera comprising a. The method of claim 6, wherein the video and audio data simultaneously output step (S50) An image data reproducing step (S51) of storing the digital image data in the multi-video data storage unit 32 and being reproduced by the simultaneous reproducing unit 35; An image index data retrieval step (S52) of retrieving the index data of the digital image data in the image data reproducing step (S51); A voice index data search step (S53) in which index data of digital audio data identical to the index data of the digital video data is searched in the video index data search step (S52); Image and audio index data matching step (S54) that the index data of the digital image data retrieved in the image index data search step (S52) and the index data of the digital audio data retrieved in the voice index data search step (S53) are matched (S54). ; And Simultaneous playback of video and audio data in which digital audio data corresponding to the digital video data reproduced in the video data reproduction step S51 is simultaneously reproduced by matching in the video and audio index data matching step S54. Simultaneous playback method of video and audio data through a surveillance camera comprising a.