KR20020043926A - Digital video recorder system for controlling motion picture signal - Google Patents

Abstract

PURPOSE: A digital video storage system for controlling motion picture signals is provided to be applied with video information from a predetermined motion picture camera with a PCI(Peripheral Component Interconnect) system, and to easily control a function of displaying the video information, thereby simply searching the video information with a keyword operation. CONSTITUTION: A PCI interface(120) is applied with at least more than one piece of video information from motion picture cameras(100a-100n), and performs a predetermined signal timing and a bus interface synchronization, then outputs the video information. A micro processor stores the video information in a memory(150) or displays the video information on a display(200) with a certain format. A program supplier(160) stores and supplies a program for searching a setup program and the video information. A function key module(170) has a function button for displaying the divided video information or searches the video information.

Description

DIGITAL VIDEO RECORDER SYSTEM FOR CONTROLLING MOTION PICTURE SIGNAL

The present invention relates to a digital video storage system (DVR) for controlling a video signal, and more particularly, by providing a predetermined program to a user by using a key operation, image information received from one or more video cameras photographing a predetermined subject. The present invention relates to a digital image storage system for controlling a video signal that makes it easier to perform a desired function setting.

As is well known, in order to record and reproduce predetermined image information, a subject photographing process according to an image capturing operation of a video camera photographing a subject and receiving the captured image information via a predetermined connection medium (for example, a cable) are performed. This is done by adding a process of outputting this by the playback apparatus.

If this is described as an example of a security camera installed in a financial institution, an imaging tube provided to a predetermined video camera converts a still image signal / video signal applied through a lens into an electrical signal, and the electrical signal is analog / digital. Before quantizing the signal in the converter, the analog signal is sampled to extend the processing time when the discrete waveform, i.e., the conversion time as a digital signal is not sufficient, and the sampled signal is transmitted to the sampling / holding part for maintaining a predetermined time. . At this time, even if a plurality of video cameras are sequentially operated for a predetermined time interval or simultaneously driven to capture a video signal of a subject, each analog video signal output from each video camera is output as an asynchronous signal. In order to store them in multiple recording apparatuses, synchronization of each video signal must be implemented. Accordingly, the output analog video signal is input to an analog switching unit to realize synchronization.

Thereafter, the signal is converted into a digital signal by the analog / digital converter, and then converted into a more accurate and stable signal such as noise reduction and spectrum manipulation included in the digital signal by the digital signal processor, and the analog by the digital / analog converter. The signal is reconverted and then sent to a VCR (Video Casette Recorder) such as a recording device.

The recording apparatus stores the analog video signal in recording means such as a video tape or a magnetic tape, and is then displayed through the recording apparatus / playback apparatus.

However, as described above, image information of a predetermined subject photographed according to an imaging operation is recorded and stored in a state of being applied to a separate recording apparatus, and is displayed through a monitor or the like according to driving of the recording apparatus. In order to edit the information, a separate editing device is required, and channel division, color adjustment, speed adjustment, etc. of the image data are controlled through an adjustment terminal provided to the hardware such as the monitor, thereby adjusting the image information. It was inconvenient to make the state suitable for the user to observe.

When the image information captured for a certain period / time is stored in the recording means, the image information stored in a specific time zone must be stored by using a separate display means when recording or is not displayed. In the case of performing a search operation, the search task is cumbersome and time consuming.

Accordingly, the present invention has been made in order to solve the above problems, PCI image information (still image data / video data) applied from a predetermined video camera

Digital image storage for controlling a video signal, which is authorized through a Peripheral Component Interconnect method and makes it easier to control a function for displaying the authorized image information with a predetermined key operation only when a predetermined program is supported. The purpose is to provide a system.

In addition, another object of the present invention is to enable a user to easily search for image information captured by the video camera and stored in a predetermined storage means.

Digital image storage system for controlling a video signal according to the present invention for achieving the above object, the real-time transmission of image information captured by at least one video camera mounted on a certain place, according to a predetermined key operation In the digital image storage system to display or store in a predetermined memory, the digital image storage system is a PCI interface that receives at least one or more image information from the video camera and outputs after performing a predetermined signal timing and synchronization of the bus interface And a microprocessor for performing an overall control operation to store the image information output from the PCI interface unit in a memory unit or to display the image information in a predetermined format according to a setup program, and to retrieve the setup program and image information. And a function key module unit having a program providing unit for storing / providing a program and a function button for dividing or searching the image information.

In addition, the PCI interface unit may be provided with a Motion Picture Experts Group (MPEG) unit in proportion to a video camera for capturing the video information, or may selectively compress / store and output the video information captured from the one or more video cameras. An MPEG unit is provided.

According to the present invention having the above-described configuration, the user can not only easily set various initial states by key operation but also simply search keyword image information to be searched by keyword operation only by key operation. Able to know.

1 is a schematic block diagram showing a digital video storage system for controlling a video signal according to a preferred embodiment of the present invention;

FIG. 2A and FIG. 2B are block diagrams of the respective PCI interface units of FIG. 1;

3 is a schematic diagram showing a main screen configuration for displaying predetermined video information by a digital video storage system for controlling a video signal of FIG.

4 is a flowchart illustrating a series of processes for controlling and displaying a video signal by a digital video storage system for controlling the video signal of FIG.

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

100a-100n: first to nth video camera, 110: control module unit,

120: PCI interface unit, 130: microprocessor,

140: keyboard portion, 150: memory portion,

160: program providing unit, 170: function key module unit,

200: display unit.

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

1 is a schematic block diagram showing a digital video storage system for controlling a video signal according to a preferred embodiment of the present invention. FIGS. 2A and 2B are respective block diagrams constituting the PCI interface unit of FIG. 3 is a schematic diagram showing a main screen configuration for displaying predetermined video information by the digital video storage system for controlling the video signal of FIG.

As shown in FIG. 1, a digital image storage system for controlling a video signal according to the present invention includes a first to nth video camera 100a-100n mounted at a predetermined place to capture a predetermined subject, and the video camera. A control module unit 110 for performing an overall control operation so as to store moving image information photographed from (100a-100n) or display converted image information according to a function key operation, and an image output from the control module unit 110 It is composed of a display unit 200 for displaying information.

Here, the control module 110 compresses and stores at least one or more image information received from the video camera 100a-100n by a predetermined method, and the image information for each channel determined by a key operation through a PCI bus. Or a PCI interface unit 120 detachably mounted on a main board to change / output the image information stored in the memory unit 150 or the image information output from the PCI interface unit 120. Or a microprocessor 130 for performing an overall control operation to display on the display unit 200 in a predetermined format according to a predetermined setup program, and a program providing unit for storing / providing the setup program and a program for retrieving image information. 160 and a function key module unit 170 having a function button for dividing or searching the image information.

Reference numeral 140 is a keyboard unit.

Also, as shown in FIGS. 2A and 2B, the PCI interface unit 120 compresses and stores the image information in proportion to the video camera 100a-100n for capturing the image information and outputs it through the PCI bus. An MPEG controller 122a-122n and a PCI controller 124 that receives and outputs any image information from the MPEG 122a-122n are provided, or are captured by the one or more video cameras 100a-100n. A single MPEG unit 126 is provided and configured to selectively compress / store image information and output it.

3, the display unit 200 displaying image information includes a screen display unit 202 for splitting and displaying one or more image information captured by a video camera, and the control module unit 110. The function key module unit 170 is provided with various function buttons at the bottom of the screen so as to receive the setting signal from the setup program and set or retrieve the initial state of the video information by the setup program. Pan tilt adjustment button 180 to perform the right position movement / lens distance and size adjustment / focus adjustment of the video camera / automatic rotation function / power control function / light control function of the video camera, and to select a video camera A camera selection button 182 and an information display window 186 for displaying a motion and sensor detection record of a video camera are clearly provided.

The function key module unit 170 displays a video of a video camera when one screen switching button 170a, four screen split switching button 170b, setting screen split button 170c, and motion detection detection are set. A motion tracer operation button 170d, a setting button 170e, a search button 170f for searching / deleting image information stored in a memory unit, and the like are provided, and a channel is operated according to the operation of the setting button 170e. 6) Additional function buttons are provided to operate six channel settings such as setting, color setting, schedule setting, speed setting, motion detect setting and block setting.

A process of capturing predetermined video information by a digital video storage system for controlling a video signal configured as described above and displaying the video information will be described with reference to the accompanying drawings.

Here, in describing the present invention, the same parts as in the prior art will be omitted.

First, when the video camera 100a-100n is turned on in response to a key operation while the first to nth video cameras 100a-100n are installed at a predetermined location (e.g., entrance, living room, safe, etc.) The imaging tube provided to the camera 100a-100n captures moving image data or still image data of the subject input through the lens and converts the image data into an electrical signal (step 210).

The video information converted into the electrical signal is converted into a digital video signal according to the clock signal of the same period by a predetermined digital signal processing means, and the video information is transmitted to the PCI interface unit 120 in real time according to the transmission protocol. 212).

Subsequently, the PCI interface unit 120 outputs through the MPEG units 122a to 122n which compress and store only the video information allocated to itself from the video information transmitted from the video camera 100a-100n. The video information is applied to the microprocessor 130 according to the control operation of the PCI controller 124.

Here, the moving picture information is transmitted to each of the MPEG parts 122a through 122n, and the moving picture information selected according to the control operation of the microprocessor 130 described later is provided while one MPEG part 126 is provided. This can be done (see Fig. 2b).

Subsequently, under the control operation of the microprocessor 130, the transmitted video information is displayed through the display unit 200, and the user wants to use the video information setup program provided by the program providing unit 160. Can be selected or the image size, color, etc. of the selected moving picture information can be adjusted (step 214).

This will be described with reference to FIG. 3, which shows a main screen configuration for displaying predetermined video information by the digital video storage system for controlling the video signal of FIG.

First, various function key module unit 170, pan tilt control button 180, camera selection button 182, etc. for setting up moving picture information are provided at a predetermined position of the main screen. 140 or control according to the mouse operation (step 216).

That is, when the one-screen switching button 170a provided to the function key module unit 170 is operated, the video information applied from the video camera 100a-100n may be sequentially switched and displayed, and the four-screen split switching button ( In the case of operating 170b), all video information can be displayed on the screen display unit 202 in four screens. Of course, only the video information may be displayed on the entire display unit 200 in a state in which the function key module unit 170 and other buttons are removed.

In addition, when the motion tracer operation button 170d is operated, the video information of the detected video camera is displayed only when the motion detector detection setting is set, and the pan tilt adjustment button 170 is operated to capture the video camera. Orientation, zoom in / zoom out and focus of moving image information to be captured can be adjusted. In addition, the lower end of the pan tilt adjustment button 170, the automatic rotation function for automatically rotating the video camera, the power on / off function of the video camera, the on / off function of the light attached to the video camera, the auxiliary device providing function, camera selection Functions are provided so that the user can view the desired image information with a simple key operation.

In this case, when the pan tilt adjustment is performed, a camera provided with a pan tilt function is applied instead of a general video camera.

On the other hand, when the setting button 170e is operated, more detailed setting operations can be performed on the operation on the main screen (step 218).

That is, when the setting button 170e provided to the function key module unit 170 is operated on the main screen (step 220), the function buttons are set as in the channel setting, color setting, schedule setting, speed setting, motion detection setting, and password setting. The display unit 200 is displayed at a predetermined position, and a user performs a desired function by operating the function button, and displays image information according to the result (steps 222 and 224). However, if there is no separate setting operation, the image information is displayed based on a preset reference value (step 228).

Here, the functions of the digital video storage system are set in accordance with the operation of the function button. The setting process will be described below.

First, when the button for channel setting is operated, functions such as name, method, and position setting of a video camera for capturing a predetermined subject can be set respectively. When the camera name setting button is set, the operation of the video camera is performed according to the keyboard operation. You can change the name as you like, or connect the new video camera to the video signal control system by operating the camera setting button and the camera position setting button, or indicate the position of the connected video camera. (National Televison System Committee) or PAL (Phase alternation line) method can be used selectively.

When the color setting button is operated, the color of the image information may be changed for each of the video cameras 100a-100n, such as brightness, brightness, and restoration of default values. If it doesn't fit, it is used to create an optimized picture.

In addition, depending on whether or not the schedule setting button is operated, the video camera can be recorded and stored by turning on the video camera mounted at a specific time and the like. In this case, the start time / end time can be set as well as the specific day of the week. In addition, when the predetermined video information is recorded by the video camera, the recording method can be selectively selected such as automatic recording, motion detection detection recording and sense detection recording, and the recording speed is different for each of the plurality of video cameras. Can be recorded or set in the same manner. At this time, when the video camera method is NTSC, it is possible to record at 30 frames per second, and in the case of the PAL method, it is possible to record at 25 frames per second.

The motion detect setting button records video information captured by the video camera only when the motion detect is set in the schedule management, and the motion detect setting function has less movement than a large area of motion. This is appropriate when there is a small amount of image data, such as when recording only an important part. If the block setting function is executed within the screen, unnecessary image data is not stored and the memory can be efficiently used. Generally, up to 10 block settings can be set per channel.

On the other hand, the user can easily search the image information stored in the memory unit 150 of the digital image storage system with a simple operation, for example, it is possible to perform a sequential search by the keyword search and button operation for the date of recording, In case of inputting a time to search, if there is no video information recorded in the time zone, the video information closest to the specified time is searched and accessed. In other words, when the user wants to access the image information recorded on November 1, 2000 by the third video camera, the image information is read out from the memory unit 150 only by using a keyboard input and displayed. As described above, the displayed image information may be changed into information of a desired form using various function buttons.

As described above, the capacity of the memory unit 150 in which the predetermined image information is stored can be checked, and the image information can be backed up and stored in a recording medium through control of a predetermined peripheral device, and the image can be printed through a printer.

As described above, according to the digital image storage system for controlling the video signal of the present invention, the user can easily perform the function setting desired by the simple key operation on the image information received from one or more video cameras for capturing a predetermined subject. If possible, of course, there is an effect that can efficiently perform the operation of retrieving the image information recorded on the storage medium.

Claims (3)

A digital image storage system for receiving image information captured by at least one video camera mounted at a predetermined place in real time, displaying the image information according to a predetermined key operation, or storing the image information in a predetermined memory. The digital image storage system, the PCI interface unit 120 for receiving at least one or more image information received from the video camera (100a-100n) and outputs after performing a predetermined signal timing and synchronization of the bus interface, and the PCI interface unit A microprocessor 130 for storing the image information outputted from the 120 in the memory unit 150 or performing the overall control operation to display the image information on the display unit 200 in a predetermined format according to the setup program; And a program providing unit 160 for storing / providing a program for searching image information, and a function key module unit 170 having a function button for dividing or searching the image information. Digital video storage system for controlling a video signal characterized in that. The method of claim 1, The PCI interface unit 120 is provided with MPEG units 122a-122n in proportion to the video cameras 100a-100n for capturing the image information, or image information captured from the one or more video cameras 100a-100n. A digital video storage system for controlling a video signal, characterized in that a single MPEG unit 126 for selectively compressing / storing and outputting the same. The method of claim 1, The function key module unit 170 displays a video of a video camera when one screen switching button 170a, four screen split switching button 170b, setting screen split button 170c, and motion detection detection are set. Motion Tracer operation button 170d, setting button 170e, search button 170f for searching / deleting image information stored in the memory unit 150, direction of video camera, lens zoom in / out, focus adjustment And a pan tilt adjustment button 180 for controlling the channel, color, schedule, speed, and motion detection of the video information when the setting button 170e is operated. Digital image storage system for controlling a video signal, characterized in that the function can be additionally set.