KR200262163Y1 - Apparatus for recording scene of watch by using digital video recorder - Google Patents

Abstract

The present invention relates to an apparatus for photographing a predetermined surveillance scene and recording it in a digital video recorder. In a place such as a bank in which a conventional cash dispenser is installed, the photographing angle of the CC camera does not face the front of the user who operates the cash dispenser. Therefore, after recording the user who operates the cash dispenser on the video tape in the VCR, it is difficult to identify the face of the user who operated the cash dispenser during playback. In addition, in terms of price / performance, only a few hours of video can be recorded on a storage medium such as a video tape used in a VCR. According to the present invention, a picture of a user operating a cash dispenser is photographed using a camera installed at a portion of the display panel 30 of the cash dispenser, compressed, and recorded on a digital video recorder. Therefore, the user's face of the automatic teller machine can be photographed vividly, so that the user of the automatic teller machine can be accurately distinguished. Since the image data of the user's face of the ATM is compressed and stored, the system can be continuously operated for a long time. In addition, it is possible to efficiently use when searching for a fraudulent user of the ATM.

Description

Surveillance scene recording device using digital video recorder {APPARATUS FOR RECORDING SCENE OF WATCH BY USING DIGITAL VIDEO RECORDER}

The present invention relates to a surveillance scene recording apparatus using a digital video recorder (DVR), and more particularly, to an apparatus for photographing a predetermined surveillance scene and recording it in a digital video recorder.

The digital video recorder integrates the existing analog surveillance and storage devices "Multiplexer" and "Time Lapse VCR", and it is a system based on the problem of image quality, long time recording, retrieval of recorded video and installation of 4 or more cameras. It is a digital video surveillance and storage system that fundamentally solves performance degradation and provides network functions.

The Personal Computer (PC) -based digital video recorder system, the first generation of digital video recorders, is controlled by a program using an Intel CPU (Central Processing Unit), and the system operating system is called "Windows xx". Was used. Initially, 16 channels of camera input were not simultaneously displayed on the monitor in real time. It's a cost issue rather than a technical one. In recent years, the cost is important, but the performance of the product is more important, and even if the cost is higher, a 16-channel video display is being implemented.

The biggest problems with first-generation digital video recorders are system instability, post-maintenance, and high price. These are the basics behind the birth of non-PC-based digital video recorders, the second generation of digital video recorders.

The second generation of digital video recorders solves many of the problems raised in the first generation of digital video recorders and further pursues more features and performance.

This effort is expected to grow into the next generation of systems in conjunction with systems such as Video On Demand (VOD) and Personal Video Recorder (PVR) as today's industrial-based digital video recorders become home or personal digital video recorders.

Conventional surveillance systems record using a CC camera (Closed Circuit camera) from a relatively far distance to record the VCR, etc., and play back when necessary. At this time, the recording quality is usually recorded at low image quality. Therefore, it is very difficult to recognize a face of a specific person on a subsequent playback screen. In addition, since the shooting angle of the CC camera does not generally face the face of the person to be monitored, it is almost impossible to identify the face of a specific person on the playback screen. In addition, since the CC camera is usually installed in a high place, it is difficult to clean the lens.

For example, in a place such as a bank where an automatic teller machine is installed, the photographing angle of the CC camera does not face the front of the user who operates the automatic teller machine. Therefore, after recording the user who operates the cash dispenser on the video tape in the VCR, it is difficult to identify the face of the user who operated the cash dispenser during playback. In addition, in terms of price / performance, only a few hours of video can be recorded on a storage medium such as a video tape used in a VCR.

The present invention has been made to solve the above-mentioned shortcomings, and a picture of a user operating a cash dispenser is photographed using a camera installed at a display panel of a cash dispenser and compressed and recorded on a digital video recorder. It is an object of the present invention to provide a surveillance scene recording apparatus using a digital video recorder.

In order to achieve the above object, the present invention provides a digital video recorder for recording an image photographed by a camera corresponding to the specific device among a plurality of cameras when the operation detection signal of the specific device is provided. A multiplexer which multiplexes a plurality of video signals according to each photographing; A codec for encoding the multiplexed video signal of the multiplexer; And a controller configured to control the multiplexer to select an image signal of a camera corresponding to the specific device according to an operation detection signal of the specific device, and receive the encoded image signal from the codec and store the image signal in a storage device. .

1 is a block diagram showing an embodiment of a surveillance scene recording apparatus using a digital video recorder according to the present invention;

2 is a schematic view showing an example in which a camera is installed on a display panel portion of an automatic teller machine;

FIG. 3 is a flow chart showing step by step an embodiment of a surveillance recording method performed in a surveillance scene recording apparatus using the digital video recorder shown in FIG.

<Description of the symbols for the main parts of the drawings>

10: cash dispenser operation detection unit

12, 14, 32: camera 16: multiplexer

18: compression codec 20: control unit

22: hard disk drive 24: digital video recorder

30: display panel

Hereinafter, an embodiment of the present invention will be described in detail with reference to the following drawings.

1 is a block diagram illustrating an embodiment of a surveillance scene recording apparatus using a digital video recorder according to the present invention, wherein the digital video recorder 24 detects a specific cash dispenser manipulation detecting unit 10 among a plurality of cash dispenser manipulation detecting units. When receiving an operation detection signal of a specific cash dispenser from the plurality of cameras (12, 14) is configured to record an image taken by the camera corresponding to the particular cash dispenser. The digital video recorder 24 includes a multiplexer 16, a compression codec 18, a controller 20, and a hard disk drive (HDD) 22.

In the same figure, the multiplexing unit 16 multiplexes a plurality of video signals according to the photographing of the plurality of cameras 12 and 14. The plurality of cameras 12 and 14 are each installed in a plurality of cash dispensers. For example, as shown in FIG. 2, the camera 32 is installed at the center of the inside of the display panel 30 of the automatic teller machine and photographs a face of a customer who uses the automatic teller machine.

The compression codec 18 compresses and encodes the multiplexed video signal of the multiplexer 16 and compresses and decodes another compressed coded video signal to be displayed on a monitor (not shown in the figure). For example, the compression codec 18 receives the compressed and coded video signal stored in the hard disk drive 22 through the control unit 20, compresses and decodes the displayed video signal on the monitor.

The controller 20 controls the multiplexer 16 to compress the multiplexer 16 such that the image signal of the first camera 12 is selected as a camera corresponding to the cash dispenser 10 according to the operation detection signal of the cash dispenser 10. The video signal encoded by the codec 18 is received and stored in the hard disk drive 22.

FIG. 3 is a flowchart illustrating step by step an embodiment of a surveillance recording method performed in a surveillance scene recording apparatus using the digital video recorder shown in FIG. 1.

First, the control unit 20 determines whether an operation is detected in any of the plurality of cash dispensers (step 40). The case is considered as the cash dispenser operation detection as follows. When inserting a card to use a cash dispenser, there are four types: the first and the last password, the cash withdrawal. In addition, a more robust monitoring system can be achieved by setting various cases that are considered to detect cash dispenser operation.

The controller 20 controls the multiplexer 16 when an operation of a specific cash dispenser is detected so that an image signal captured by a camera corresponding to the cash dispenser whose operation is detected is input (step 42).

The compression codec 18 inputs, through the multiplexer 16, an image signal captured by the camera corresponding to the cash dispenser in which the manipulation is detected (step 44).

The compression codec 18 compresses and encodes the input video signal (step 48). In this case, a segmentation step may be further performed by software or hardware on the image signal input before compression and encoding (step 46).

The control unit 20 receives the compressed and encoded video signal from the compression codec 18 and stores it in the hard disk drive 22 (step 50). At this time, "wavelet" may be used as a compression technique.

As described above, the present invention takes a picture of a user operating a cash dispenser using a camera installed at a portion of the display panel 30 of the cash dispenser, compresses it, and records it in a digital video recorder. Therefore, the user's face of the automatic teller machine can be photographed vividly, so that the user of the automatic teller machine can be accurately distinguished. Since the image data of the user's face of the ATM is compressed and stored, the system can be continuously operated for a long time. In addition, it is possible to efficiently use when searching for a fraudulent user of the ATM.

Claims (3)

In the digital video recorder for recording an image taken by a camera corresponding to the specific device of the plurality of cameras when the operation detection signal of the specific device is provided: A multiplexer which multiplexes a plurality of video signals according to each photographing of the plurality of cameras; A codec for encoding the multiplexed video signal of the multiplexer; A digital video recorder including a controller configured to control the multiplexer to select an image signal of a camera corresponding to the specific device according to an operation detection signal of the specific device, and to receive the encoded image signal from the codec and store the image signal in a storage device; Surveillance scene recording device used. The surveillance scene recording apparatus using a digital video recorder according to claim 1, wherein the specific device is a cash dispenser. The monitoring scene using a digital video recorder according to claim 2, wherein a camera corresponding to the at least one automatic teller machine is installed in a display panel provided at the at least one automatic teller machine to face the user of the at least one automatic teller machine. Recording device.