KR200299897Y1 - Aparratus For Distributing Radar Image - Google Patents

Abstract

The present invention relates to a radar image distribution device for separating and displaying a radar image signal into a plurality of image signals. To this end, the scanner for transmitting a radio wave to receive a radar signal reflected from the target; A radar signal processing apparatus for generating an image signal by processing the received radar signal; A divider for distributing the video signal into a plurality of same video signals; And a plurality of radar display devices for receiving the separated image signal and displaying an image.

Description

Radar Image Distributing Equipment {Aparratus For Distributing Radar Image}

The present invention relates to a radar image distribution device for dividing and displaying a radar image signal into a plurality of image signals, and more specifically to divide and output the image signal output from the radar signal processing apparatus into a plurality of image signals The present invention relates to a radar image distribution device capable of contributing to the safe operation of a ship or an aircraft by allowing the radar image to be observed at other places besides the steering room.

Currently, radar devices are widely used for safe operation in the operation of ships or aircrafts.

Radar stands for “Radio Detection And Ranging”. When radio energy (short wave) is emitted from the directional antenna and hits a target, a part of the energy is returned and the reflected wave is a device that receives and detects the reflected wave. It is a device that can identify the position of the target, that is, it sends a radio wave to the target to receive the reflected wave of the energy of the radio wave and uses the linearity and constant speed of the radio wave to determine the position of the target by the round trip time and the directivity of the antenna. Azimuth and distance).

These radars include a primary radar using only radio waves reflected from a target depending on the method of using reflected radio waves, and a secondary radar using the radio waves by automatically re-emitting radio waves of the same frequency or different frequencies from an object hit by the radio waves. .

In addition, there are sailing, harbor, anti-aircraft, meteorological, relay, and shooting radars depending on the use.

1 is a schematic block diagram of a conventional radar image display device. As shown in FIG. 1, the conventional radar image display device includes a scanner 100, a radar signal processing device 105, and a radar display device 110.

When the scanner 100 transmits the radio wave and the radio wave is reflected from the target, the scanner 100 converts the radio wave into an image signal through signal processing through the radar signal processing device 105 and outputs the image signal to the radar display device.

However, such a conventional radar image display device is installed in a steering room in a ship, so there is a lot of trouble because it is necessary to go directly to the steering room to check the radar image.

In addition, during the night shift of the navigator, it may take time for the navigator to enter the dark steering room immediately for the shift to see the radar and adjust to the surrounding environment.

In addition, since the radar image cannot be confirmed in the engine room, there is a problem that it is difficult to cope with the emergency situation in the case of an emergency situation such as a collision of ships because the engineers do not know the situation early.

Accordingly, there is a growing demand for a radar image display device capable of overcoming the irrationality of such a radar image display device such as a ship and allowing safe driving.

The present invention is devised to solve the above problems, and the first object of the present invention is to separate the video signal into the same plurality of video signals through a distributor, such as a captain's room, chart room, engine room It is to provide a radar image distribution device that can observe the radar image from the back to ensure safe driving.

A second object of the present invention is to provide a radar image distribution device capable of storing a radar image obtained by time and reproducing a radar image of a previous time if necessary by providing a storage unit capable of storing radar image data.

1 is a schematic block diagram of a conventional radar image display device;

2 is a schematic block diagram of a radar image distribution device according to the present invention;

3 is a block diagram illustrating an internal configuration of a radar display device of the present invention;

4 is a diagram schematically showing the configuration of the vessel of the radar image distribution apparatus according to the present invention.

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

200 scanner: radar signal processor

215: divider ,: amplifier,

230: radar display device, 300: image data acquisition unit,

310: control unit: display unit,

340: storage unit: output unit.

An object of the present invention as described above is a radar image distribution device for separating and displaying a radar image signal into a plurality of image signals, a scanner for transmitting a radio wave to receive a radar signal reflected from a target, the received radar signal A radar signal processing apparatus for generating an image signal by processing a signal, a divider for distributing the image signal into a plurality of identical image signals, and a plurality of radar display apparatuses for receiving the separated image signal and displaying an image; It can be achieved by a radar image distribution device, characterized in that.

An object of the present invention as described above also in the radar image distribution device for separating and displaying the video signal output from the radar to a plurality of video signals, a divider for distributing the video signal output from the radar to the same plurality of video signals It may also be achieved by a radar image distribution device, characterized in that it comprises a plurality of radar display device for displaying the image by receiving the separated image signal.

The plurality of radar display apparatuses may include an image data acquisition unit configured to acquire an image data by capturing an image from the image signal input from the radar signal processing apparatus, and to display the image data input from the image data acquisition unit. Preferably, the display unit includes a control unit for controlling the image data acquisition unit and the display unit.

Other objects, specific advantages, and novel features of the present invention will become more apparent from the following detailed description and the preferred embodiments associated with the accompanying drawings.

Hereinafter, with reference to the accompanying drawings to describe the embodiment of the present invention in detail.

2 is a schematic block diagram of a radar image distribution device according to the present invention. As shown in FIG. 2, the radar image distribution device according to the present invention includes a scanner 200, a radar signal processing device 205, a divider 215, an amplifier 220, and a plurality of radar display devices 230. It is.

The scanner 200 transmits radio waves to receive a radar signal reflected from a target. Although not shown in FIG. 1, the scanner 200 includes an oscillator for generating a pulse waveform, a modulator for modulating the pulse waveform into a waveform of a desired frequency, a transmitter for transmitting radio waves, an antenna, and a receiver for receiving the reflected radar signal. It consists of a receiver, and the scanner 200 and the radar signal processing apparatus 205 which are mentioned later are provided with the timer for synchronizing synchronization.

The radar signal processing apparatus 205 processes the received radar signal to generate an image signal, and converts the short wave radar signal into an electrical analog RGB image signal and outputs the converted image signal. This conversion is performed by mixing the reflected radio wave received from the scanner 200 and the oscillation signal of the local oscillator (not shown), amplifying the intermediate frequency of the difference, and detecting the same.

The divider 215 is for distributing an image signal into a plurality of identical image signals. In this embodiment, one analog component signal (R, G, B, Sync., HD, VD) is received as an input and distributed to eight outputs. The distributor can be used, and the output signal distributed to CRT monitor, video projector, etc. can be provided.

The amplifier 220 amplifies and outputs an image signal output from the divider 215.

Generally, the radar facilities of ships are installed in the steering room, so there is no problem in displaying the video signal directly in the steering room, but the amplifier is located at a place away from the steering room such as the captain's room, chart room, engine room, etc. Will be needed.

In order to transmit and display the video signal, amplifying and transmitting the video signal can prevent distortion of the signal, errors due to noise, and the like.

However, in the case of large vessels, it may be difficult to prevent errors due to signal distortion or noise by the amplifier alone. In such a case, it may be more preferable to include a transmission / reception device between the distributor and each radar display device, and to provide interpolation or compensation means for compensating for distortion or errors, or error correction means for correcting errors.

The plurality of radar display devices 230 are used to display the image by receiving the separated image signal, which will be described in detail with reference to FIG. 3.

3 is a block diagram illustrating an internal configuration of the radar display device 230 according to the present invention. As illustrated in FIG. 3, each of the plurality of radar display devices 230 includes an image data acquisition unit 300, a control unit 310, a display unit 330, a storage unit 340, and an output unit 350. Consists of.

The image data acquisition unit 300 is a device for acquiring image data by capturing an image from the image signal input from the image data acquisition unit 300. In this embodiment, the frame grabber is used. The frame grabber is a PCI bus method that converts analog video signals into digital information and stores them in the storage device. The frame grabber captures and stores the video and performs editing functions using separate hardware or software. It may be.

In this embodiment, the image is captured and stored at 0.5 second intervals per frame, but this can be adjusted by the user.

The display unit 330 is for displaying image data input from the image data acquisition unit 300. The display unit 330 uses a cathode ray tube (CRT) or a computer monitor to create a visual image in the form of dots using electrons emitted from a cathode in a vacuum. And the like are generally used. The display method by CRT mainly uses the PPI (Plane Position Indication) method, which displays the distance to the target and its orientation in polar coordinates, so that the alien situation centered on the antenna is almost reproduced on the CRT. In the case of the monitor, the display method is the same as the general method.

The storage unit 340 is for storing the image data output from the image data acquisition unit 300. The storage unit 340 may store the radar image previously acquired for each time and play back the radar image of the previous time if necessary. You can do that.

In the present embodiment, the storage unit 340 uses a hard disk that is stored at a period of 1.5 seconds per frame to play an image almost in real time, and the play back available time may vary depending on the storage capacity of the hard disk. . It also has a function to store up to 10 different video streams.

The output unit 350 outputs the image data output from the image data acquisition unit 300 and the image data stored in the storage unit 340. The printer may be used. The output unit 350 allows the user to output the image being output on the screen if necessary.

The controller 310 is for controlling the image data acquisition unit 300, the display unit 330, the storage unit 340, and the output unit 350. Referring to the control process of the control unit 310, first, when the RGB analog image signal is input to the image data acquisition unit 300, the corresponding output is input to the control unit 310 (S10), the control unit 310 is an RGB analog image The command signal for digitizing the signal is output to the image data acquisition unit 300.

Next, when the control unit 310 transmits a command signal for display output to the display unit 330 to the display unit 330, the display unit 330 outputs the digitized image data from the image data acquisition unit 300 to the monitor.

When a storage command is input through the user interface means, the controller 310 interprets the storage command and transmits a command signal for storing image data to the storage unit 340 to store the image data.

In addition, when the output command is input through the user interface means, the image data is output as printed matter through the same process.

4 is a diagram schematically showing the configuration of the vessel of the radar image distribution apparatus according to the present invention. As shown in FIG. 4, the radar signal received through the scanner 200 is converted into an RGB analog image signal by the radar signal processing apparatus 205, and then output, and then divided into a plurality of image signals through the divider 215. .

The separated video signals are transmitted to a plurality of radar display devices, and the plurality of radar display devices may be installed at various places in a ship as needed.

For example, it can be installed in the captain's room so that the captain can check the radar image from time to time so that the captain can understand the sailing situation around the ship without going to the steering room. You can check the entire radar image in advance.

In addition, it is possible to install in an engine room etc. in preparation for an emergency situation.

Although illustrated and described with reference to the radar device of the ship in this embodiment, the present invention is not limited to this, it can be applied to various fields using the radar device, such as aircraft, airports, automobiles, military facilities.

In addition, an image processing unit for processing and editing the image data output from the image data acquisition unit 300 may be further provided as necessary.

In addition, in the present embodiment, all the radar display devices 230 are connected to the amplifier 220, but in the case of the radar display device 230 installed in the steering chamber, the amplifier 220 may not be provided, and the ship may be a small ship. In the case where the distance between the places is close, the object of the present invention may be achieved even without the amplifier 220.

In addition, in the present embodiment, the divider 215 and the amplifier 220 are separated into separate components, but it is also possible to distribute and amplify an image such as an image distribution amplifier in one device.

According to the radar image separation device as described above, the radar image can be observed in a place other than the steering room, for example, the captain's room, chart room, engine room, etc. by separating the video signal into the same plurality of video signals through a distributor. There is an effect that can be written.

In addition, by having a storage unit for storing the radar image data, it is possible to store the obtained radar image for each time to be able to play the radar image of the previous time if necessary.

In addition, having an output unit capable of outputting radar image data has the effect of outputting the acquired radar image if necessary.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, the appended claims will include such modifications and variations as fall within the spirit of the present invention.

Claims (7)

A radar image distribution device for dividing a radar image signal into a plurality of image signals and displaying the same, A scanner for transmitting a radio wave and receiving a radar signal reflected from a target; A radar signal processing apparatus for generating an image signal by processing the received radar signal; A divider for distributing the video signal into a plurality of same video signals; And a plurality of radar display devices for receiving the separated image signal and displaying an image. In the radar image distribution device for separating and displaying a video signal output from the radar into a plurality of video signals, A divider for distributing image signals output from the radar into a plurality of identical image signals; And a plurality of radar display devices for receiving the separated image signal and displaying an image. 3. The radar image distributing device of claim 1 or 2, wherein an amplifier is located between the distributor and the plurality of radar display devices. The apparatus of claim 1 or 2, wherein the plurality of radar display devices An image data acquisition unit for capturing an image from the image signal input from the radar signal processing apparatus and obtaining image data; A display unit for displaying the image data input from the image data acquisition unit; And a control unit for controlling the image data acquisition unit and the display unit. 5. The radar image distribution device according to claim 4, wherein the image data acquisition unit is a frame grabber. The radar image distributing apparatus of claim 4, wherein the plurality of radar display apparatuses further include a storage unit controlled by the control unit and storing image data output from the image data obtaining unit. The radar image distributing apparatus of claim 4, wherein the plurality of radar display apparatuses further include an output unit controlled by the control unit and outputting image data output from the image data obtaining unit.