• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    PURPOSE: A recording device and method of a digital video recorder are provided to record an event with vary fine picture quality using a plurality of cameras connected to the digital video recorder. CONSTITUTION: A recording device of a digital video recorder(100) includes a multiplexer(18), a CODEC(20), and a controller(22). The multiplexer multiplexes recording signals of a plurality of cameras(12,16) connected to the digital video recorder. The CODEC codes the multiplexed recording signal and decodes other coded signals. The controller controls the multiplexing operation of the multiplexer, and sets the coded recording signal provided by the CODEC to the maximum recording level when at least one event detector among a plurality of event detectors(10,14) placed surrounding the digital video recorder provides an event detection signal.
    公开号:KR20030018656A
    申请号:KR1020010052889
    申请日:2001-08-30
    公开日:2003-03-06
    发明作者:김지용
    申请人:주식회사 대우일렉트로닉스；
    IPC主号:
    专利说明:

    Recording device and method of digital video recorder {RECORDING APPARATUS AND RECORDING METHOD OF DIGITAL VIDEO RECORDER}
    [10] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus and method of a digital video recorder (DVR), and more particularly, to an image quality recorded by a plurality of peripheral cameras connected to a digital video recorder when an event occurs in the vicinity. An apparatus and method for recording an event occurrence place and its surroundings by setting the maximum image quality.
    [11] 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.
    [12] 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.
    [13] 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.
    [14] 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.
    [15] 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.
    [16] A recording apparatus using a conventional digital video recorder includes a plurality of event detectors (not shown in the drawing) for detecting each event in the vicinity, and a plurality of cameras (not shown in the drawing) respectively for capturing each event detection. Are each paired and connected to the digital video recorder, respectively.
    [17] In such a configuration, when a specific event detection unit of the plurality of event detection unit detects the occurrence of a specific event, it notifies the digital video recorder.
    [18] The digital video recorder records the image quality of a specific camera paired with a specific event detection unit that has informed the event detection to the maximum image quality, and records the image quality of the other cameras as it is.
    [19] Therefore, when the recorded specific event is played back, the playback cannot be made vividly in the surrounding environment except for the specific event detection part, and thus, it is difficult to know the cause of the specific event.
    [20] The present invention has been made to improve the above-mentioned shortcomings. When an event such as an intruder detection occurs in the surroundings, the image captured by a plurality of peripheral cameras connected to the digital video recorder is set to the maximum image quality to the event occurrence place and its surroundings. It is an object of the present invention to provide a recording apparatus and method of a digital video recorder for vivid recording.
    [21] In order to achieve the above object, the present invention provides a digital video recorder for recording an image taken by a plurality of cameras installed in the vicinity of any one of the event detection unit installed in the surroundings: A multiplexer which multiplexes each recorded signal; A codec (coder / decoder: codec) for encoding the multiplexed recording signal of the multiplexer and decoding another coded signal; When the signal corresponding to event detection is provided from one or more event detectors among the plurality of event detectors, the encoded recording signal provided from the codec is set to a maximum recording level. And a control unit for storing in the storage device.
    [1] 1 is a block diagram showing an embodiment of a recording apparatus of a digital video recorder according to the present invention;
    [2] FIG. 2 is a flowchart showing step by step an embodiment of a recording method performed in the recording apparatus of the digital video recorder shown in FIG.
    [3] <Description of the symbols for the main parts of the drawings>
    [4] 10, 14: the first, eighth event detector
    [5] 12, 16: first, eighth camera 18: multiplexer
    [6] 20: compression codec 22: control unit
    [7] 24: hard disk drive 26: encoder
    [8] 28: public telephone network 30: the Internet
    [9] 100: digital video recorder
    [22] Hereinafter, the embodiment of the present invention will be described in detail with reference to the following drawings.
    [23] 1 is a block diagram showing an embodiment of a recording apparatus of a digital video recorder according to the present invention, in which the digital video recorder 100 detects an event by any one of the event detection units 10 and 14 installed in the vicinity. Record the image quality recorded by the cameras 12 and 16 installed in the periphery to the maximum image quality, aka "very fine", and record the event detection to the set place (Public Switched Telephone Network (PSTN) 28) and It is configured to notify via the Internet (30). The digital video recorder 100 includes a multiplexer 18, a compression codec 20, a controller 22, a hard disk drive (HDD) 24, and an encoder 26.
    [24] In the same figure, a plurality of cameras, for example, eight cameras 12 and 16 respectively photograph each peripheral and provide them to the multiplexer 18 in the digital video recorder 100, respectively.
    [25] As an example of a plurality of event detectors, eight event detectors 10 and 14 respectively detect events around each of them and provide an event generation signal to the controller 22 when an event occurs. In this case, a port of the controller 22 which provides a plurality of event detection units to each of the event occurrence signals may use one port.
    [26] The plurality of cameras 12 and 16 and the plurality of event detection units 10 and 14 may be configured in pairs, respectively. In addition, the event detection unit may be installed in every corner, and the camera may be configured in different ways.
    [27] The multiplexer 18 multiplexes the recording signals of the plurality of cameras 12 and 16 under the control of the controller 22 and provides them to the compression codec 20.
    [28] The compression codec 20 compressively encodes the multiplexed recorded signal of the multiplexer 18 and decodes the compression encoded signal.
    [29] The encoder 26 encodes a compressed and decoded recording signal provided from the compression codec 20 into a signal for displaying on a screen and displays the same through a monitor.
    [30] The control unit 22 controls the multiplexing operation of the multiplexing unit 18. The controller 22 records the compression-coded recording signal provided from the compression codec 20 when the signal corresponding to the event detection is provided from one of the plurality of event detection units 10 and 14. Level is set in the hard disk drive 24. Recording continues from the event occurrence until the administrator of the digital video recorder 100 releases the event. The controller 22 transfers the recorded content stored in the hard disk drive 24 to the compression codec 20 during playback.
    [31] The recording level is shown in Table 1, for example.
    [32] Recording levelRecord Frames Per Second very fine30 fine20 normal10 poor5
    [33] The controller 22 notifies the event detection through the networks 28 and 30 to the set place. For example, a call to a security company or a police station through a public telephone network 28 to notify the event detection. In addition, an email (e-mail) informing of event detection is transmitted to a specific address on the Internet (30).
    [34] FIG. 2 is a flowchart showing step by step an embodiment of a recording method performed in the recording apparatus of the digital video recorder 100 shown in FIG. 1.
    [35] First, the control unit 22 determines that the current recording mode preset by the user or the like through a predetermined key input device (not shown) such as a switch box is the normal recording mode and the event recording mode. Which recording mode is determined in step 32 (step 32).
    [36] As a result of determining the recording mode, when the preset recording mode is the normal recording mode, the controller 22 records images captured by multiple cameras by setting the image quality according to each setting (step 34).
    [37] As a result of determining the recording mode, the controller 22 determines whether an event is generated when the preset recording mode is the event recording mode (step 36).
    [38] When any one of a plurality of event detection units installed in the periphery detects an event, the controller 22 sets an image taken by the cameras installed in the periphery to a maximum image quality aka, "very fine", where the event occurs and its surroundings. Record (step 38).
    [39] The controller 22 notifies the event detection through the networks 28 and 30 to the set place. For example, a call to a security company or a police station through a public telephone network 28 to notify the event detection, and sends an e-mail informing the event detection to a specific address on the Internet 30 (step 40). After performing the above-described step 40, the step of determining whether to terminate the recording mode is further performed. If the recording mode is not canceled, the process returns to the step 32. On the other hand, if the recording mode is to be canceled, the recording mode is canceled.
    [40] As described above, in the present invention, when an event such as an intruder detection occurs in the surroundings, the images captured by a plurality of peripheral cameras connected to the digital video recorder are set to the maximum image quality to vividly record the event occurrence place and its surroundings. . Therefore, the situation when an event occurs can be reproduced more vividly, thus providing a great clue in estimating the cause of the event or the like.
    [41] In addition, since the event recording mode of any one of the plurality of event detection unit (10, 14) detects the event, it performs the event recording mode, the output of the plurality of event detection unit (10, 14) port of the controller 22 You can connect to one in common. Therefore, according to the present invention, since each event detection unit controls each event detection signal to each of the predetermined controllers, the predetermined controllers should have as many ports as the number of the event detection units. However, in the present invention, since only one port needs to be provided, a circuit pattern ( circuit pattern) is also simplified.
    权利要求:
    Claims (4)
    [1" claim-type="Currently amended] In the digital video recorder for recording an image taken by a camera installed in a large number when any one of the event detection unit installed in the surrounding detects an event:
    A multiplexer which multiplexes each recording signal of the plurality of cameras;
    A codec for encoding the multiplexed recording signal of the multiplexer and decoding another coded signal;
    When the signal corresponding to event detection is provided from one or more event detectors among the plurality of event detectors, the encoded recording signal provided from the codec is set to a maximum recording level. Recording apparatus of a digital video recorder comprising a control unit for storing in a storage device.
    [2" claim-type="Currently amended] The method of claim 1,
    And the codec is a compression codec.
    [3" claim-type="Currently amended] The method according to claim 1 or 2,
    The storage device is a recording device of a digital video recorder, characterized in that the hard disk drive.
    [4" claim-type="Currently amended] In the digital video recorder for recording an image taken by a camera installed in a large number when any one of the event detection unit installed in the surrounding detects an event:
    A first step of determining a recording mode;
    A second step of recording a video recorded by the plurality of cameras in a normal recording mode by setting the image quality according to each setting;
    Determining whether an event occurs in the event recording mode;
    A fourth step of recording an event occurrence place and its surroundings by setting an image captured by a plurality of cameras installed in the vicinity to the maximum image quality when any one of the event detection units installed in the surroundings detects an event; How to record on a digital video recorder.
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    同族专利:
    公开号 | 公开日
    KR100408827B1|2003-12-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2001-08-30|Application filed by 주식회사 대우일렉트로닉스
    2001-08-30|Priority to KR10-2001-0052889A
    2003-03-06|Publication of KR20030018656A
    2003-12-06|Application granted
    2003-12-06|Publication of KR100408827B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR10-2001-0052889A|KR100408827B1|2001-08-30|2001-08-30|Recording apparatus and recording method of digital video recorder|
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