KR200182088Y1 - Control unit for multi image signal storage - Google Patents

Abstract

The present invention relates to a video signal storage control device, the input control unit for receiving and converting a control signal as an input; A central control unit converting an output control signal of the input control unit into a plurality of control signals and controlling a circuit for the control signal; An output control unit which reads data stored in a buffer and controls the analog image storage device through an interface unit; A signal controller configured to control the image capture signal by reading data stored in the buffer through the central controller; A decoder unit connected to the signal controller and configured to receive a composite image signal as an input through a signal input unit, capture a still image, and convert the image into a standard image mode; An image data format unit for converting the captured still image into an image frame; And a memory controller for controlling the memory to output a predetermined digital still image through the host bus.

The multi-image signal storage control device having such a configuration has an effect of acquiring a predetermined digital still image by a specific control signal while reducing moving images, reducing the burden on hardware, and preventing signal distortion.

Description

Control Unit for Multi Image Signal Storage

The present invention relates to a video signal storage control device, and more particularly, to store a video in real time by remotely controlling an analog storage device, and to transmit a certain control signal while the analog storage device is storing a video, and thus, a predetermined still image. The present invention relates to a multi-image signal storage control device for capturing the data.

In general, a video signal storage system receives a complex video signal using a charge coupled device (CCD) camera and stores a digital video using an analog storage and an image processing board, and captures an image captured using a communication line. Send it. These systems are widely used in automated inspection equipment, multimedia systems, video conferencing, electronic commerce and security systems, and because of the development of communication and the Internet, the user wants to receive clear images at the field and remote places quickly.

As a conventional video signal storage device, FIG. 1 is a block diagram of a method of storing a video by remotely controlling an analog storage device, and FIG. 2 is a block diagram of a video signal processing method as US Patent No. 4,897,717.

As shown in FIG. 1, a conventional image storage device includes a sensor input unit 10, an analog / digital converter (hereinafter, referred to as an A / D converter) 20, a controller 30, a transmitter 40, The interface unit 50 is configured.

Referring to the operation of the device configured as described above in more detail. First, a sensor input unit 10 for receiving a control signal of the adjacent sensor and a control signal using remote communication and transmits the signal to the A / D conversion unit 20; An A / D converter 20 for converting an analog signal transmitted from the sensor input unit 110 into a digital signal; A controller (30) for receiving the digital signal converted by the A / D converter (20), outputting a predetermined control signal, and controlling the overall operation of the image processing system; A transmitter 40 for transmitting the control signal at high speed without delay time; An interface unit 50 for controlling an external analog storage device through the transmitter 40; The interface unit 50 is configured to store a video in an external analog storage device.

FIG. 2 is a block diagram of a video signal processing method according to the related art. As shown, an A / D converter 110, a digital / analog converter (hereinafter, referred to as a D / A converter) 120, and a memory The unit 130, the RGB-YIQ converter 140, the luminance unit 150, the chromaticity unit 160, the transmission unit 170, and the host bus 180 are configured.

Referring to the operation of the device configured as described above in more detail. First, an A / D converter 110 for converting a composite video signal into a digital frame through quantization in order to input a composite video signal and obtain a predetermined still image; A memory unit 130 for storing a digital frame output through the A / D converter 110 in a memory; A D / A converter 120 for amplifying and outputting a signal stored in the memory unit 130; An RGB-YIQ converter 140 for dividing a digital frame stored in the memory unit 130 into a luminance signal and a chromaticity signal: filtering and sampling a luminance signal among signals outputted through the RGB-YIQ changer 140 A brightness unit 150; A chromaticity unit 160 for filtering and sampling chromaticity signals among the signals output through the RGB-YIQ converter 140; A transmission unit 170 for transmitting the sampled data output through the luminance unit 150 and the chroma unit 160 to the host bus 180; It is configured to store digital images in an external storage device through the host bus 180.

However, such a conventional technique should acquire a moving image through an analog storage device and obtain a predetermined still image using a separate image capture board. As a result, the unnecessary digital image acquisition caused by the duplication of the hardware configuration and the time delay that occurs in acquiring the required still image from the moving image recorded in the analog storage device has a problem of losing its value as information.

The present invention has been made to solve the conventional problems as described above, the remote control of the analog storage device to store the video in real time, and while the analog storage device while storing the video to transmit a predetermined control signal predetermined It is to provide a multi-image signal storage control device for capturing a still image of the.

1 is a block diagram showing the configuration of a typical analog storage device.

Figure 2 is a block diagram showing the overall configuration of a conventional image processing system.

Figure 3 is a block diagram showing the configuration of a multi-image signal storage control apparatus according to an embodiment of the present invention.

4 is a detailed circuit diagram of a decoder for processing video signals according to the present invention.

5 is a detailed circuit diagram of the interface signal control of FIG.

6 is a detailed circuit diagram of the control signal processing of FIG.

FIG. 7 is a detailed circuit diagram of the output control unit of FIG. 3. FIG.

♣ Explanation of symbols for the main parts of the drawing ♣

210: control signal input unit 220: input control unit

230: signal decoding unit 240: transmission buffer unit

250: central control unit 260: first signal transmission unit

270: first receiving buffer unit 280: output control unit

290: interface unit 300: second signal transmission unit

310: second receiving buffer section 320: signal control section

330: signal input unit 340: decoder unit

350: video data format unit 360: FIFO

370: memory controller 380: host bus

In order to achieve the above object, the present invention stores a video in real time by remotely controlling an analog storage device, and stores a video signal to capture a predetermined still image by transmitting a specific control signal while the analog storage device is storing a video. In the control apparatus, a control signal input unit, an input control unit, a signal decoding unit, a transmission buffer unit, a central control unit, a first signal transmitter, a first receiver buffer unit, an output controller, an interface unit, a second signal transmitter, and a second receiver It consists of a buffer unit, a signal control unit, a signal input unit, a decoder unit, an image data format unit, a FIFO, a memory control unit, and a host bus.

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

3 is a block diagram showing the configuration of a multi-image signal storage control apparatus according to an embodiment of the present invention. According to an embodiment of the present invention as shown in Figure 3, the control signal input unit 210 for receiving analog and digital signals transmitted through short-range and long-distance communication as an input; An input control unit 220 for converting and filtering analog signals input through the control signal input unit 210 into digital data and filtering digital data input through the control signal input unit 210; An interrupt signal of the control signal data filtered through the input control unit 220 is directly transmitted to the central control unit 250, and a signal decoding unit 230 for decoding other control signal data; A transmission buffer unit 240 for storing the decoded signal transmitted continuously; A central controller 250 for converting a control signal transmitted to the transmission buffer unit 240 into a plurality of control signals and controlling a control circuit; The central control unit 250 classifies the analog storage device control signal and the image capture control signal among the control signals and transmits them to the first signal transmitter 260 and the second signal transmitter 300.

A first signal transmitter 260 for receiving an analog storage device control signal transmitted through the central controller 250; A first receiving buffer unit 270 for storing an output control signal except for an interrupt signal outputted through the first signal transmitting unit 260; An output control unit 280 using an interrupt signal output from the first signal transmission unit 260 and a control signal output from the first reception buffer unit 270 as an input signal: transmitted through the output control unit 280 It consists of an interface unit 290 for connecting the signal and the external device is stored in the analog storage device.

A second signal is sent directly to the signal controller 320 using the image capture signal transmitted through the central controller 250 as an input, and a signal other than the interrupt signal is transmitted to the second reception buffer unit 310. A signal transmitter 300; A second receiving buffer unit 310 for storing control signals continuously output from the second signal transmitting unit 300; The signal control unit 320 is configured to control the signal transmitted from the second signal transmission unit 300 and the second reception buffer unit 310 to control the image capture signal.

A signal input unit 330 which receives a composite image signal which is continuously input; A decoder unit 340 which quantizes an image signal input through the signal input unit 330 into digital data at a sampling frequency and captures a still image by a control signal of the signal controller 320 and converts the image into a standard image mode. Wow; An image data format unit 350 for converting the image standard mode processed by the decoder unit 340 into an image frame; A FIFO 360 for processing data transmitted through the image data format unit 350; A memory controller 370 for directly controlling a memory to store data transmitted through the FIFO 360 in a memory; The memory controller 370 controls the host bus 380 and stores a predetermined still image in the digital storage device.

The overall configuration of the multi-image signal storage control apparatus according to an embodiment of the present invention was described above with reference to FIG. 3, and the main processing procedure for each part thereof will be described in detail with reference to FIGS. 4, 5, 6, and 7. As follows.

4 is a detailed circuit diagram of a video signal processing decoder according to an embodiment of the present invention, wherein a decoder continuously receives a composite video signal, processes a video capture signal transmitted from the signal controller 320 of FIG. 3, and an I ² C interface. To control. The protocol block diagram of I ² C is as follows: S represents START, P represents STOP, A represents ACKNOWLEDGE, and NA represents NON ACKNOWLEDGE.

DATA WRITE

DATA READ

FIG. 5 is a detailed circuit diagram of the interface signal control of FIG. 4, which uses a one-chip microcontroller to process a signal of the signal controller 320 of FIG. 3 and generate the interface signal of FIG. 4.

FIG. 6 is a detailed circuit diagram of the control signal processing of FIG. 3, which is a circuit diagram for receiving analog and digital control signals as inputs, converting the analog signals to digital by a sampling frequency, and filtering the digital signals to decode the signals. Is showing.

FIG. 7 is a detailed circuit diagram of the output control unit 280 of FIG. 3, which receives a control signal and inputs a control signal to adjust a difference in expression format and an operation timing to interface with an analog storage device to perform an operation, and data processing is completed. If so, the output controller 280 sends an ACK signal and terminates all operations.

The above-described embodiments are merely illustrative of preferred embodiments of the present invention, and the scope of application of the present invention is not limited thereto, and may be appropriately changed within the scope of the same idea. In addition, the shape and structure of each component specifically shown in the embodiment of the present invention can be modified.

As described above, according to the multi-image signal storage control apparatus according to the present invention, by remotely controlling the analog storage device to store the video in real time, and while the analog storage device is storing the video by transmitting a certain control signal to a predetermined It has the effect of capturing still images.

In addition, the present invention has the effect of reducing the burden of hardware and the execution time of the control signal by controlling the analog storage device and the digital storage device at the same time.

In addition, there is an effect of preventing the distortion of the control signal that may occur in decoding the control signal and distinguishing the analog storage device control signal from the image capture signal, and the storage of error information caused by transmission errors.

Claims (1)

In a multi-image signal storage control device for remotely controlling an analog storage device to store a video in real time, and capture a predetermined still image by transmitting a specific control signal while the analog storage device is storing a video, An input control unit for converting and filtering an input analog signal into digital and filtering the input digital data; A first reception buffer connected to the input control unit and interconnected with the transmission buffer unit, converting an output control signal of the input control unit into a plurality of control signals and converting the data stored in the transmission buffer unit into a first signal transmission unit A central control unit for controlling transmission to the negative unit; An output control unit connected to the first signal transmission unit and connected to the first reception buffer unit, and configured to read data stored in the first reception buffer unit to control an analog image storage device through an interface unit; A signal controller connected to the second signal transmitter and interconnected with the second receiver buffer unit, and configured to read data stored in the second receiver buffer unit to control an image capture signal; A decoder unit connected to the signal controller and interconnected with the signal input unit to quantize a composite video signal into digital data at a sampling frequency, and to capture a still image by the control signal of the signal controller and convert the image into standard video data; An image data format unit connected to the decoder unit and interconnected with a FIFO and converting the image standard data of the decoder unit into an image frame; And a memory control unit connected to the FIFO and interconnected with a host bus, the memory control unit storing a digital still image stored in the FIFO via a host bus.