KR200162186Y1 - Monitoring closed circuit television device using magnetic disk storage device - Google Patents

Abstract

The present invention relates to a recording apparatus of a closed circuit television for surveillance, and more particularly, a device for installing a plurality of surveillance cameras and configuring a closed circuit television apparatus to remotely monitor the screen and record the same, The present invention relates to a closed circuit television device for surveillance that can prevent deterioration of image quality.

The closed circuit television apparatus for monitoring includes: surveillance cameras 201, 202, 203, ... installed in plural places where necessary; A digitizer 210 for converting image output from the cameras 201, 202, 203, ... into digital signals that can be processed by a computer; A camera controller (220) for controlling and passing the output from the digitizer (210); An image processing / output device 230 for driving the display device 240 by processing the digital screen signal through the digitizer 210; A display device 240 for displaying a signal through the image processing / output device 230 to a user; And a personal computer 250 including an image data compression processor 252 for compressing image information by using the output of the image processing / output device 230 as an input, and a magnetic disk storage unit 256. Configured; The camera control device 220 is characterized in that the camera control device 220 is configured in combination with the central processing unit (CPU) in the personal computer (250).

Description

Surveillance closed circuit television device using magnetic disk storage

The present invention relates to a recording apparatus of a closed circuit television for surveillance, and more particularly, a device for installing a plurality of surveillance cameras and configuring a closed circuit television apparatus to monitor and record the screen from a remote location, The present invention relates to a closed circuit television device for surveillance that can prevent deterioration of image quality.

Surveillance closed-circuit television is used to monitor the situation in a specific area. For example, it is installed in banks to record customer situation in the store and, if necessary, a monitoring device for reproducing this screen, or installed in a building for crime prevention. It is used for many purposes.

Such closed circuit television for monitoring is usually configured with a video tape recorder as a screen recorder and a player for recording the screen.

1 is a configuration diagram showing an example of the configuration of a closed circuit television for surveillance and a recording apparatus thereof according to the prior art.

The apparatus includes a plurality of cameras 101, 102, ... 103 installed in a secret place, an image processor 110 for processing image signals from the plurality of cameras, and a monitor for outputting image signals output from the image processor 110 on a screen. The device 120 is normally configured to include a video tape recorder 130 for recording the surveillance screen.

In this case, the image processor 110 has a function of sequentially passing a monitoring screen of a separate position input through a plurality of cameras 101, 102, 103,. Therefore, this apparatus has the advantage of sequentially monitoring the monitoring screen input from each camera (101, 102, 103, ...) using one monitor device 120, and also has a single video tape recorder (130) It has the advantage of recording the surveillance screen of the location.

As an embodiment of the image processor 110, the control command may be received by a user to monitor only a monitoring screen of a specific camera. This function can be used when the user of the device wants to continuously monitor the input of a specific camera.

At this time, the monitoring screen through the monitor device 120 is normally recorded through the video tape recorder (130). Therefore, the user of this apparatus can check this by replaying this monitoring screen if necessary.

However, in the above-described closed-loop television recording apparatus for surveillance of the related art, various problems are caused by using a video tape as the recording medium.

The reason for this is that repeated use of the video tape may cause deterioration of the magnetic material on the tape surface, which is the recording medium, or sagging tape. Therefore, when the user wants to check the actual recorded contents, the image quality is reduced and the resolution of the monitoring screen is reduced. Etc., a problem arises that the desired purpose cannot be achieved.

The present invention has been made to solve the above-mentioned problem. In a closed circuit television recording apparatus for monitoring, a closed circuit television apparatus for monitoring which can prevent deterioration in image quality due to repeated use by digitally recording and reproducing the monitoring screen. The purpose is to provide.

1 is a block diagram of a closed circuit television for monitoring constructed in the prior art.

Fig. 2 is a block diagram of a closed circuit television for monitoring constructed in accordance with the present invention.

* Explanation of symbols for main parts of the drawings

201,202,203: Surveillance camera 210: Digitizer

220: camera controller 230: image processing / output circuit

240: display device

In order to achieve the above object, a closed circuit television device for monitoring using a magnetic disk storage device according to an embodiment of the present invention includes: a monitoring camera installed in plural places where necessary; A digitizer for converting the image output from the camera into a digital signal that can be processed by a computer; A camera controller for controlling and passing the output from the digitizer; An image processing / output device for driving a display device by processing a digital screen signal through the digitizer; A display device for displaying a signal through the image processing / output device to a user; An image data compression processor for compressing image information by inputting the output of the image processing / output device, and a personal computer including a magnetic disk storage device; The camera control device is characterized in that the camera control device is configured to combine with the central processing unit in the personal computer.

Referring to the accompanying drawings, a preferred embodiment of the present invention will be described.

Fig. 2 is a block diagram showing an example of the configuration of a closed circuit circuit television apparatus for monitoring using a magnetic disk storage device constructed in accordance with the present invention.

Reference numerals 201, 202, 203, ... are provided in plural where necessary as a monitoring camera. If necessary, the surveillance camera is preferably mounted in a secret position. As a use example of such a monitoring camera, it can be comprised using the imaging device solidified using the recent advanced semiconductor technology. Such a solid-state image pickup device can generate a digitalized output and is suitable for use in the device of the present invention.

In addition, as the camera of the present invention, it is also possible to use an imaging tube such as a beacon or a plum beacon of the conventional method used for converting an optical image into an electrical signal. At this time, a digitizer 210 as shown in FIG. 2 is required.

The digitizer 210 is responsible for converting the two-dimensional image information picked up by the imaging tube into a digital signal that can be processed by a computer.

At this time, the control device performs a function of time-divisionally controlling the outputs of the surveillance cameras 201, 202, 203, ..., in order. Therefore, although many surveillance cameras are provided, the digitizer 210 for digital processing can fully exhibit the function as one.

As described above, the digital screen signal processed according to the present invention is processed to drive the display device through the image processing / output device 230 and output through the display device 240 so that the user can remotely monitor through this screen. can do.

At this time, as an example of the control operation of the camera control apparatus 220 described above, time-sequential processing of the input signals from the monitoring cameras 201, 202, 203, ... is performed, and the screens of the plurality of monitoring cameras are sequentially processed, for example, in units of 2-3 seconds. Switching operation is also possible.

In addition, as another embodiment of the control operation of the camera control device 220 described above, the input signal from the surveillance cameras 201, 202, 203, ... is processed in a picture in picture (PIP) process from a plurality of surveillance cameras on one screen. It is also possible to control the operation of displaying the input.

As an embodiment of the camera control device 220, a configuration in which the control device 220 is formed using the central processing unit 254 of the personal computer described later is possible.

At this time, the closed circuit television recording apparatus of the present invention receives the digitized screen signal and records it using a personal computer.

The resolution of the video signal described above is determined as the number of pixels per screen, and as the resolution increases, the number of data bits / bytes per screen increases, causing a problem of storage capacity.

The present invention compresses and processes a color screen of 640 × 480 level, which is a typical video signal resolution of a personal computer. At this time, when applying the compression technology of the J-PEG method of the still image compression protocol it was estimated that about 100KB per screen.

Accordingly, when the surveillance screen is compressed and stored, a storage capacity of 360 MB is required to store the screen based on 10 hours / day when the surveillance screen is stored at a rate of once per 10 seconds.

In this case, in order to increase the resolution of the recorded surveillance screen, it may be realized by reducing the number of surveillance cameras.

Alternatively, by using a storage device with a large storage capacity, a detailed recording record is also possible by shortening the cycle of image recording. As such a storage device, a hard disk storage device of a personal computer or a magneto-optical disk storage device can be used.

As described above, the closed circuit television device for monitoring according to the present invention digitally records and reproduces screen information, thereby achieving an effect of providing a surveillance screen without deterioration of image quality even when the storage medium for screen recording is repeatedly used. .

Although the present invention has been illustrated and described in connection with certain preferred embodiments, the present invention may be variously modified and changed without departing from the spirit or the field of the present invention provided by the following utility model registration claims. It will be readily apparent to one of ordinary skill in the art that it can be used.

Claims (1)

(Single-correction) Surveillance cameras 201, 202, 203 installed in plural where necessary; A digitizer 210 for converting image output from the cameras 201, 202, 203, ... into digital signals that can be processed by a computer; A camera controller (220) for controlling and passing the output from the digitizer (210); An image processing / output device 230 for driving the display device 240 by processing the digital screen signal through the digitizer 210; A display device 240 for displaying a signal through the image processing / output device 230 to a user; And a personal computer 250 including an image data compression processor 252 for compressing image information by using the output of the image processing / output device 230 as an input, and a magnetic disk storage unit 256. Configured; The camera control device (220) is a closed circuit television device for monitoring, characterized in that the camera control device (220) configured to combine with the central processing unit (CPU) in the personal computer (250).