KR101464718B1 - Apparatus for tracking sunspot group and method thereof - Google Patents

Abstract

In the present invention, disclosed are an apparatus for tracking a sunspot group and a method thereof. The present invention easily checks the sunspot group which is newly generated or disappears by determining whether the sunspots are identical on the corresponding comparison object image based on a time difference between the comparison object images and an average rotation speed on the surface of the sun.

Description

[0001] APPARATUS FOR TRACKING [0002]

The present invention relates to a sunspot group tracking device and method thereof, and more particularly, to a sunspot group tracking device for judging whether or not a group of black spots present in a comparison image is the same based on an average rotation speed of a sun surface and a time difference between images to be compared It is about the method.

As a method of monitoring the sunspot, the sun image photographed by human handwork is analyzed, and the types of the spots and the magnetic field complexity are analyzed, and the black spots are tracked based on the analysis.

This manual analysis and tracking method has a possibility of error in the analysis of the sun image, and it is difficult to analyze and track in real time due to the time required for the analysis.

Korean Patent Laid-Open No. 10-2010-0124568 [Title: Solar Observer]

It is an object of the present invention to provide a sunspot group tracking apparatus and a method thereof for tracking a sunspot group through comparison with a previous sun image for an automatically recognized sunspot group based on a sun image provided in real time.

Another object of the present invention is to provide a sunspot group tracking apparatus and a method thereof, which update a solar rotation cycle based on a sun image provided in real time and track a sunspot group based on an updated new solar rotation cycle.

A sunspot group tracking device according to an embodiment of the present invention is a sunspot group tracking device that tracks a sunspot group included in a sun image transmitted from an external server or satellite, A storage unit for storing the data; A communication unit for receiving a second sun image at a current time point transmitted from the external server or satellite; And a difference between a generation time of the second sun image included in the tracking time blackspot group information and a generation time of the first sun image included in the previous time blackspot group information, Reflecting the sun's rotation period preset in the previous-time sunspot information when the sunspot period is less than or equal to a predetermined value, generating the sunspot period reflecting sunspot group information for the first sun image, And a control unit for generating a first matching set based on the solar rotation period reflecting black spot group information for the sun image.

As an example related to the present invention, the previous time black spot group information includes at least one of a generation time of the first sun image, a latitude of a center point of a black spot group in the first sun image, a longitude of a center point of a black spot group in the first sun image, The magnitude of the latitude of the center point of the black point group in the sun image and the magnitude of the hardness of the center point of the black point group in the first sun image, and the tracking time black spot group information includes the generation time of the second sun image, The latitude of the center point of the black point group, the latitude of the center point of the black point group in the second sun image, the latitude of the center point of the black point group in the second sun image, and the magnitude of the center point of the black point group in the second sun image .

As an example related to the present invention, the predetermined value may be a value obtained by dividing a preset rotation period of the sun preset as an initial value by a preset constant value.

As an example related to the present invention, when the difference between the generation time of the second sun image and the generation time of the first sun image is larger than a predetermined value, You can set the number.

As an example related to the present invention, the sun rotation period reflecting black spot group information for the first sun image may include at least one of a latitude of a center point of a black spot group in the first sun image, a solar rotation period reflecting hardness of a center point of a black spot group in the first sun image, The magnitude of the latitude of the center point of the black point group in the first sun image and the magnitude of the center point of the black point group in the first sun image.

As an example related to the present invention, when the difference between the generation time of the second sun image and the generation time of the first sun image is less than or equal to a preset value, the control unit controls the rotation of the sun And extracts the black point group information from the first sun image rotated by the rotation period of the sun.

The control unit calculates the first matching set based on the generated first matching set based on the hardness of the center point of the group of black points in the second sun image included in the tracking time- The absolute value of the difference between the sun rotation period reflection hardness of the center point of the black spot group in the first sun image included in the periodic reflection black spot group information is greater than the hardness of the center point of the black spot group in the second sun image and the center point of the black spot group in the first sun image It is possible to exclude black spots that are larger than the standard deviation between the solar rotation period and the hardness.

As an example related to the present invention, the control unit may calculate the difference between the generation time of the second sun image and the generation time of the first sun image, and the difference between the second sun image and the average of the corresponding black spot group in the first sun image Based on the travel distance, you can calculate the updated sun's rotation cycle.

As an example related to the present invention, the control unit may generate updated solar rotation period reflecting black spot group information for the first sun image by reflecting the calculated rotation period of the sun to the previous time black spot group information.

As an example associated with the present invention, the updated Sun rotation period reflecting black spot group information for the first sun image may include a latitude of the center point of the black point group in the first sun image, an updated sun point of the black point center point in the first sun image The magnitude of the latitude of the center point of the black point group in the first sun image, and the magnitude of the center point of the black point group in the first sun image.

As an example related to the present invention, the control unit may generate a second matching set based on the tracking-time blackspot group information and the updated solar rotation period reflecting black spot group information for the first sun image.

As an example related to the present invention, when the black spot group in the second sun image does not satisfy the generated second matching set based on the generated second matching set, A new control number can be set in the black spot.

As an example related to the present invention, when the black spot group in the second sun image satisfies the generated second matching set on the basis of the generated second matching set, the control unit controls the black spot group detected from the second sun image It is possible to set the same management number as the corresponding black spot group in the first sun image.

A method for tracking a sunspot group according to an embodiment of the present invention is a method for tracking a sunspot group included in a sun image transmitted from an external server or a satellite, comprising the steps of: Confirming the previous time black spot group information extracted from the image; Receiving a second sun image at a current time point transmitted from the external server or satellite through a communication unit; Extracting tracking black point group information from the second sun image through the control unit; Whether or not the difference between the generation time of the second sun image included in the tracking time blackspot group information and the generation time of the first sun image included in the previous time blackspot group information is greater than a preset value ; When the difference between the generation time of the second sun image and the generation time of the first sun image is less than or equal to the predetermined value, the rotation cycle of the sun preset in the previous time Generating solar rotation period reflecting black spot group information for the first sun image; And generating a first matching set based on the sunroof period reflecting sunspot group information for the first sun image and the tracking time sprinkling blackspot information through the control unit.

As an example related to the present invention, when the difference between the generation time of the second sun image and the generation time of the first sun image is larger than the predetermined value, Setting a new management number; The control unit is configured to calculate, based on the generated first matching set, the hardness of the center point of the black point group in the second sun image included in the tracking time black spot group information and the solar rotation period reflecting black point group information for the first sun image Wherein the absolute value of the difference between the solar cycle period reflectivity hardness at the center point of the black spot group in the first sun image is greater than the hardness at the center point of the black spot group in the second sun image, Excluding the black point group larger than the standard deviation; The control unit updates the basis of the difference between the generation time of the second sun image and the generation time of the first sun image and the average movement distance of the second sun image and the corresponding black spot group in the first sun image Calculating a rotation cycle of the sun; Generating updated sun rotation period reflecting black spot group information for the first sun image by reflecting the calculated rotation period of the sun to the previous time black spot group information through the control unit; Generating a second matching set based on the tracking time speckle information and the updated solar rotation period reflecting speckle group information on the first sun image through the control unit; Determining whether a black spot group in the second sun image satisfies the generated second matching set based on the generated second matching set through the control unit; When the black spot group in the second sun image does not satisfy the generated second match set on the basis of the generated second matching set through the control unit, a new control number is added to the black spot group detected from the second sun image ; And a control unit that, when a black spot group in the second sun image satisfies the generated second matching set based on the generated second matching set, And setting the same control number as the corresponding black spot group in the black spot group.

According to the present invention, the sunspot group that is automatically recognized based on the sun image that is provided in real time is tracked through comparison with the previous sun image, so that the blackspot group newly generated or disappearing can be easily confirmed.

Further, the present invention updates the solar rotation cycle on the basis of the sun image provided in real time and tracks the sunspot group based on the updated new solar rotation cycle, thereby easily tracking the black spot group and improving the user's convenience .

FIG. 1 is a block diagram showing the configuration of a sunspot group tracking device according to an embodiment of the present invention.
Figures 2a and 2b show 5 is a flowchart illustrating a method of tracking a sunspot group according to an embodiment of the present invention.

It is noted that the technical terms used in the present invention are used only to describe specific embodiments and are not intended to limit the present invention. In addition, the technical terms used in the present invention should be construed in a sense generally understood by a person having ordinary skill in the art to which the present invention belongs, unless otherwise defined in the present invention, Should not be construed to mean, or be interpreted in an excessively reduced sense. In addition, when a technical term used in the present invention is an erroneous technical term that does not accurately express the concept of the present invention, it should be understood that technical terms that can be understood by a person skilled in the art can be properly understood. In addition, the general terms used in the present invention should be interpreted according to a predefined or prior context, and should not be construed as being excessively reduced.

Furthermore, the singular expressions used in the present invention include plural expressions unless the context clearly dictates otherwise. The term "comprising" or "comprising" or the like in the present invention should not be construed as necessarily including the various elements or steps described in the invention, Or may further include additional components or steps.

Furthermore, terms including ordinals such as first, second, etc. used in the present invention can be used to describe elements, but the elements should not be limited by terms. Terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like or similar elements throughout the several views, and redundant description thereof will be omitted.

In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. It is to be noted that the accompanying drawings are only for the purpose of facilitating understanding of the present invention, and should not be construed as limiting the scope of the present invention with reference to the accompanying drawings.

1 is a block diagram showing the configuration of a sunspot group tracking device 10 according to an embodiment of the present invention.

1, the sunspot group tracking device 10 includes a communication unit 100, a storage unit 200, a display unit 300, and a control unit 400. Not all of the components of the sunspot group tracking device 10 shown in Fig. 1 are essential components, and the sunspot tracking device 10 may be implemented by more components than the components shown in Fig. 1, The sunspot tracking device 10 may be implemented by fewer components.

The communication unit 100 communicates with at least one external terminal or any internal component via a wired / wireless communication network. At this time, the external arbitrary terminal may include a satellite, a server, and the like. Herein, as a wireless Internet technology, a wireless LAN (WLAN), a wireless broadband (Wibro), a WiMAX (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) , Long Term Evolution (LTE), Wireless Mobile Broadband Service (WMBS), and the like. In addition, the short distance communication technology may be Bluetooth, Wi-Fi, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee For example, Near Field Communication (NFC), Ultra Sound Communication (USC), Visible Light Communication (VLC), and Bluetooth Low Energy (BLE). The wired communication technology may include a power line communication (PLC), a USB communication, an Ethernet, a serial communication, an optical / coaxial cable, and the like.

In addition, the communication unit 100 can transmit information to the terminal through a universal serial bus (USB).

In addition, the communication unit 100 receives sun images transmitted from any of the external servers or satellites. Here, the solar image may be a continuous line image of the sun (e.g., an SDO HMI image), a magnetic field front image (e.g., a magnetogram image), an ultraviolet front image of the sun Alpha front image, and the like.

The storage unit 200 stores various user interfaces (UI), a graphical user interface (GUI), and the like.

In addition, the storage unit 200 stores data and programs necessary for the sunspot group tracking device 10 to operate.

The storage unit 200 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD A random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory And a PROM (Programmable Read-Only Memory). In addition, the sunspot tracking device 10 may operate in association with the web storage or operate a web storage that performs a storage function of the storage unit 200 on the Internet.

In addition, the storage unit 200 stores the sun image received through the communication unit 100.

The display unit 300 can display various contents such as various menu screens by using the user interface and / or graphical user interface stored in the storage unit 200 under the control of the controller 400. [ Here, the content displayed on the display unit 300 includes various text or image data (including various information data), a menu screen including data such as an icon, a list menu, and a combo box. Also, the display unit 300 may be a touch screen.

The display unit 300 may be a liquid crystal display (LCD), a thin film transistor liquid crystal display (TFT LCD), an organic light-emitting diode (OLED) And may include at least one of a flexible display, a 3D display, an e-ink display, and an LED (Light Emitting Diode).

In addition, the display unit 300 displays one or more detection results of the sunspot group detected from the sun image received through the communication unit 100 under the control of the controller 400.

The control unit 400 executes the overall control function of the sunspot group tracking device 10. [

In addition, the control unit 400 performs a sunspot group detection and classification function based on the type of sun image received through the communication unit 400.

The control unit 400 displays the result of performing the sunspot group detection function on the display unit 300 or stores the result of the detection of the sunspot group classification function on the storage unit 200.

The control unit 400 performs a process of automatically detecting and classifying the sunspot group when the sun image received through the communication unit 100 is the continuous line image of the sun and the front surface image of the magnetic field. Herein, the sunspot group classification includes morphological classification (for example, including McIntosh classification system (Zpc class) and the like), classification by magnetic field structure (for example, Wilson magnetic field classification system (alpha, beta, beta-gamma, And the like).

In addition, the control unit 400 removes the label from the received sun image (or original image) when the received sun image is the continuous line image of the sun and the magnetic field front image. That is, the control unit 400 applies morphological processing to the original image to selectively remove only the type corresponding to the characters, thereby obtaining a label removal image.

In addition, the controller 400 performs masking on the label removal image (or the label removal image) to extract the disk image. That is, the controller 400 calculates the coordinates of the center point of the disc and the coordinates of the border of the disc with respect to the label removal image.

In addition, the controller 400 tracks the black spot located in the extracted disk image and extracts the black spot seed. That is, the controller 400 extracts a portion corresponding to a pixel value less than a predetermined reference in the disk area as the seed of the black spot.

In addition, the controller 400 applies an area expansion technique to the extracted black spot seeds. That is, the controller 400 calculates the average and standard deviation of the pixel values within the entire region corresponding to the extracted seed of the black spot, . At this time, the range of the pixel value used in the area expansion is set from 0 to the minimum value as "average + 1.5 * standard deviation".

Also, the controller 400 determines (or searches) a black spot based on the acquired area expanded image. At this time, the controller 400 searches (or confirms / extracts) at least one black spot including an umbra and a penumbra within the obtained area expanded image.

In addition, the control unit 400 determines the black spot group based on the one or more detected black spots. That is, the controller 400 groups the searched one or more black points (or all the searched black points) into pairs, and calculates the angular distance between the black points. In addition, the controller 400 sets the pairs having the calculated angular distance equal to or less than a preset reference distance (for example, 6 degrees) as one group. Also, the control unit 440 collates the members of different groups set as a group with respect to all the discovered groups, and if there are overlapping members, sets the two pairs into one group and expands them into a larger group.

In this way, the control unit 400 sets the searched one or more (or plurality of) black spots as one group in accordance with the angular distance between the two or more searched one or more (or plural) And the second group is set as one group to determine the black spot group.

In addition, the controller 400 determines (classifies) the class of the detected sunspot group (or sunspot) based on the McIntosh classification (or McIntosh classification).

That is, the control unit 400 confirms (or determines) which class classification the detected sunspot group corresponds to, among the classifications according to a predetermined Macintosh classification method based on size, shape, distribution type, Determine the type of sunspot group. Herein, the Macintosh classification method includes Zpc. Where Z is the modified Zurich class, p is the type of Largest Sunspot, and c is the sunspot distribution.

In addition, the controller 400 determines whether or not a penumbra exists according to the distribution of pixel values in the black point, a maximum value of the distance between the black points with reflection, a geometric width of the group area, (Zpc). ≪ / RTI >

In addition, the control unit 400 determines whether or not the Macintosh based on the presence or absence of reflection of the black spot, the reflection development information, the black point boundary line information (POI), the NS direction width of the black spot, p.

In addition, the controller 400 classifies the Macintosh c in the Macintosh classification method (Zpc) based on the spatial extent of the black spot group, the relative area ratio between the total area of the black spot and the total number of the black spots with reflection, and the like.

In addition, the controller 400 determines the magnetic field class of the sunspot based on the received magnetic field front image (including, for example, a magnetogram image (or magnetic recording image)).

In addition, the controller 400 determines which classification level the complexity of the magnetic field distribution of the magnetic field front image corresponds to, among the classifications by the Wilson classification method (or the Wilson magnetic field classification method) To determine the magnetic field complexity of the corresponding sunspot. Here, the magnetic field class includes alpha, beta, beta-gamma, delta, and the like. In this case, the alpha is a case where the distribution of the magnetic pole polarity in the black dot group is dominant in one of (+) or (-), and the relative ratio between the number of pixels having polarities of (+) and . In addition, the beta is a case where the distribution of the magnetic pole polarity in the black spot group is not dominant in either (+) or (-), and the area occupied by the two polarities is relatively well divided, It is drawn simply and clearly. The beta-gamma is a case where the distribution of the magnetic pole polarity in the black point group is not dominant in either (+) or (-), and the dividing line dividing the area occupied by the two polarities is complicatedly drawn The dog is drawn. In addition, the delta is a case in which any one of the black spots in the black spot group has umbra, which has two or more different polarities in one penumbra, and the polarity distribution as a whole has a property of the beta-gamma Beta-gamma-delta. ≪ / RTI >

That is, the control unit 400 applies a morphological processing technique to the magnetic field front image to selectively remove only the type corresponding to the letter, thereby obtaining a label removal image.

In addition, the controller 400 distinguishes the polarity (for example, +, -, or neutral) for each pixel by thresholding the label removal image.

In addition, the controller 400 calculates the polarity distribution of the group region based on the polarities of the pixels.

That is, the controller 400 separately processes the divided (+) or (-) polarities of each pixel and then synthesizes the two results to extract only the pixels whose polarity values are equal to or higher than a certain level.

In addition, the controller 400 calculates the self-division line in the group area based on the calculated group-area inner-radius distribution diagram.

That is, the control unit 400 uses the pixels obtained by the thresholding and masking processes as the seeds of the respective polarities and extends the two regions until they meet each other (for example, A kind of seeded region growing technique) is applied to calculate a magnetic partition line in the group region.

In addition, the controller 400 determines the magnetic field complexity of arbitrary sunspots in the classification degree based on the preset Wilson classification method based on the calculated group-area inner-pole distribution map and the magnetic-field division line in the group area.

In addition, the control unit 400 displays the detected sunspot group, the Macintosh class discrimination result, and the Wilson class discrimination result on the display unit 300 on the received original image (for example, the SDO HMI image) . At this time, the controller 400 may compare and display the SRS (Solar Region Summary) together. Here, the SRS mainly includes information such as the area number of the sunspot on the sun's surface and the position in the solar coordinate system, the area of the black spot group represented by the relative area of the sun's hemisphere, the total number of the black spot group, and the self classification of the black spot.

In addition, the control unit 400 may convert the physical quantities (for example, area numbers, positions, areas, black spots, Macintosh classes, magnetic field classes, and wolf numbers) And stores it in the storage unit 200.

When the received sun image is the AIA 193 image, the control unit 400 performs mask processing to extract (or acquire) only the disk image (or the masked image).

In addition, the controller 400 extracts (or searches) a first-order candidate corona hall from the masked image based on a preset reference pixel value (or a reference boundary pixel value). Here, the preset reference pixel value can be set variously according to the designer's design within a range of about 40% to 50% of the median value of all the pixel values of the disc.

In this way, the control unit 400 detects the black spot group from the sun image received through the communication unit 100.

Also, the control unit 400 confirms (or extracts) the previous time black spot group information from the first sun image at the previous time stored in the storage unit 200. [ Here, the previous time of the black spot group information includes a generation time (for example, time _p ) of the first sun image, a latitude (e.g., lat _p ) of the center point of the black point group in the first sun image, (For example, ext_lat _p ) of the center point of the black point group in the first sun image (for example, lon _p ), the magnitude of the latitude (or the magnitude of the latitude of the center point of the black point group in the first sun image) The magnitude of the hardness of the center point of the black point group in the image) (e.g. ext_lon _p ).

Also, the control unit 400 extracts tracking point-of-time black spot group information from the second sun image at the current point of time (or current time point) received through the communication unit 100. Here, the tracking black spot group information includes at least one of a generation time (for example, time _c ) of the second sun image, a latitude (for example, lat _c ) of the center point of the black spot group in the second sun image, (For example, lon _c ), the magnitude of the latitude (or the magnitude of the latitude of the center point of the black point group in the second sun image) (e.g. ext_lat _c ), the magnitude of the hardness The magnitude of the hardness of the center point of the black point group in the image) (e.g. ext_lon _c ). At this time, the first sun image or the second sun image includes a continuous line image of the sun (for example, an SDO HMI image) and a magnetic field front image, an ultraviolet front image of the sun, an H-alpha front image of the sun, .

Also, the control unit 400 confirms (or determines) whether the difference between the generation time of the second sun image and the generation time of the first sun image is larger than a predetermined value. Here, the predetermined value may be a value obtained by dividing a sun's rotation period (for example, 27 days) previously set as an initial value by a preset constant value (for example, 3).

If it is determined that the difference between the generation time of the second sun image and the generation time of the first sun image is greater than a predetermined value, the controller 400 determines that the sunspot group (Or a black spot group corresponding to the tracking black spot group information).

In addition, the control unit 400 stores information on the black spot group for which the new management number is set in the storage unit 200. FIG.

If it is determined that the difference between the generation time of the second sun image and the generation time of the first sun image is less than or equal to a predetermined value, the control unit 400 determines that the confirmed (or extracted) Reflecting the sun rotation period reflecting black point group information for the first sun image by reflecting the rotation period (P ₀ ) of the predetermined sun in the previous time black spot group information for the first sun image in the first sun image.

That is, if it is determined that the difference between the generation time of the second sun image and the generation time of the first sun image is less than or equal to a preset value, the controller 400 controls the first sun image And extracts the black point group information from the first sun image rotated by the rotation period of the sun. At this time, the information of the black spot group extracted from the first sun image rotated by the rotation period of the sun (or the sun rotation period reflecting black spot group information about the first sun image) The state in which the hardness of the center point of the black point group is rotated by the rotation period of the sun is reflected.

Here, the sun rotation period reflecting black spot group information (or the black spot group information extracted from the first sun image rotated by the rotation period of the sun) for the first sun image is the latitude of the center point of the black spot group in the first sun image (For example, lat _p ), the solar rotation period reflecting hardness (for example, lon _p ') of the center point of the black spot group in the first sun image, the magnitude of the latitude (or the magnitude of the latitude of the center point of the black spot group in the first sun image) (For example, ext_lat _p ), the magnitude of the hardness (or the magnitude of the hardness of the center point of the black point group in the first sun image) (e.g., ext_lon _p ), and the like. At this time, the solar rotation period reflecting hardness (for example, lon _p ') of the center point of the black point group in the first sun image can be calculated by the following formula (1).

Also, the controller 400 generates a first matching set based on the tracking black point group information and the sun rotation period reflecting black point group information on the first sun image. Here, the first matching set is generated (or set) so as to satisfy both of the following equations (2) and (3) (or satisfy the AND operation).

That is, the controller 400 Equation (2) and the second sun hardness (e.g. lon _c) of the center point of heukjeomgun in the image of the first aspect the sun's period of rotation of heukjeomgun center point in the image, as shown below reflect The absolute value of the difference between the hardness (for example, lon _p ') and the hardness magnitude of the center point of the black point group in the first sun image (or the second sun image) (for example, For example, ext_lon _p or ext_lon _c ) is set smaller than a value obtained by multiplying a large value by a predetermined first constant (for example, 2).

The control unit 400 may calculate the latitude of the center point of the black point group in the second sun image (e.g., lat _c ) and the center point of the black point group in the first sun image (e.g., g. lat _p) a second angle (for example, the absolute value of the difference is previously set between the example 3 °) with the first sun image (or the second center point latitude size of heukjeomgun in the sun image) (e.g. ext_lat _p or ext_lat _c ) is set smaller than a value obtained by multiplying a large value by a predetermined second constant (for example, 2).

The controller 400 may calculate an absolute value of the difference between the hardness of the center point of the black spot group in the second sun image and the solar rotation period reflectivity hardness of the center point of the black spot group in the first sun image based on the generated first matching set Excludes a black spot group which is larger than a standard deviation between a hardness of the center point of the black point group in the second sun image and a solar center period hardness of the center point in the first black point group.

In addition, the controller 400 may calculate a difference (e.g.,? T = time _c- time _p ) between the generation times of the second and first sun images and the difference between the second sun image and the corresponding black spot group (Or calculates) the updated sun's rotation period (e.g., P ') based on the average travel distance of the sun. Here, the updated rotation period of the sun (for example, P ') can be expressed by the following equation (4).

That is, the control unit 400 calculates the product of the difference between the generation times of the second and first sun images and the product of 360 ° as the following formula (4) as the average movement distance of the corresponding black spot group And the average moving distance between the hardnesses of the black spot group in the visual black spot group information) to calculate the updated rotation period of the sun.

In addition, the control unit 400 may reflect the generated (or calculated) updated sun's rotation period (e.g., P ') to the previous time sunspot information on the first sun image, Lt; RTI ID = 0.0 > Sunspot < / RTI > At this time, the updated sun rotation period reflecting black spot group information for the first sun image reflects the state in which the hardness of the center point of the black spot group in the first sun image in the previous sun spot group information is rotated by the rotation period of the updated sun . Here, the updated solar rotation period reflecting black spot group information (or the black spot group information extracted from the first sun image rotated by the rotation period of the updated sun) for the first sun image is the center of the black spot group in the first sun image (E.g., lat _p ), the updated sun's rotation period reflectivity (e.g., lon _p &_quot;) of the center point of the sunspot group in the first sun image, the magnitude of the latitude the size of the latitude of the center point) (e.g., and the like ext_lat _p), the size of the hardness (or the size of the longitude of the center point in the first aspect heukjeomgun image) (e.g. ext_lon _p). At this time, the updated sun's rotation period reflecting hardness (for example, lon _p &_quot;) of the center point of the black point group in the first sun image can be calculated by the following equation (5).

In addition, the controller 400 generates a second matching set based on the tracking-time black spot group information and the updated solar rotation period reflecting black spot group information on the first sun image. Here, the second matching set is generated so as to satisfy both of the following equations (6) and (7).

In other words, the controller 400 calculates the sun point (for example, lon _c ) of the center point of the black point group in the second sun image and the sun point The absolute value of the difference between the periodic reflection hardness (for example, lon _p &_quot;) is smaller than the predetermined first angle (e.g., 5 degrees) and the longitude of the center point of the black spot group in the first sun image (or the second sun image) It is set to be smaller than the larger one (eg ext_lon _p or ext_lon _c ).

In addition, the controller 400 may calculate the updated sun's rotation (e.g., lat _c ) of the center point of the black point group in the second sun image (e.g., lat _c ) and the center point of the black point cloud in the first sun image The absolute value of the difference between the periodic reflection latitude (e.g., lat _p ) and the latitude magnitude of the center point of the black spot group in the first sun image (or the second sun image) (For example ext_lat _p or ext_lat _c ), whichever is larger.

In addition, the controller 400 determines (or confirms) whether the black spot group in the second sun image satisfies the generated second matching set based on the generated second matching set.

If the determination result (or the check result) indicates that the black spot group in the second sun image does not satisfy the generated second matching set, the control unit 400 obtains a new management number .

As a result of the determination, if the black spot group in the second sun image satisfies the generated second matching set, the control unit 400 controls the corresponding black spot group in the second sun image to the corresponding black spot group ( (Or the corresponding black spot group in the first sun image).

In an embodiment of the present invention, one black spot group in the first sun image and another black spot group in the second sun image are used for comparison of the black spot group in the first sun image and the black spot group in the second sun image (Or a plurality of) black spot groups are included in the first sun image, and one or more (or a plurality of) other black spot groups are included in the second sun image (Or a plurality of) black spot groups in the first sun image and one or more (or a plurality of) other black spot groups in the second sun image, respectively, And if they are the same, the same management number as the corresponding black spot group in the first sun image is succeeded, If they are not the same, a new control number can be set by judging a new black spot group.

In this way, it is possible to track the sunspot group through the comparison with the previous sun image for the sunspot group that is automatically recognized based on the sun image provided in real time.

In this way, it is possible to update the solar rotation cycle based on the sun image provided in real time, and to track the sunspot group based on the updated new solar rotation cycle.

Hereinafter, the method of tracking the sunspot group according to the present invention will be described with reference to Figs. 1 to 2 Will be described in detail with reference to FIG.

Figures 2a and 2b show 5 is a flowchart illustrating a method of tracking a sunspot group according to an embodiment of the present invention.

First, the control unit 400 confirms (or extracts) the previous time black spot group information from the first sun image at the previous time stored in the storage unit 200. Here, the previous time black spot group information includes at least one of a generation time of the first sun image, a latitude of a center point of a black spot group in the first sun image, a longitude of a center point of a black spot group in the first sun image, The magnitude of the hardness (or the magnitude of the hardness of the center point of the black point group in the first sun image), and the like.

In addition, the controller 400 extracts tracking point-of-time black spot group information from the second sun image at the current point (or the current point in time) received through the communication unit 100. Here, the tracking-time blackspot group information includes at least one of a generation time of the second sun image, a latitude of a center point of a black spot group in the second sun image, a longitude of a center point of a black spot group in the second sun image, The magnitude of the hardness (or the magnitude of the hardness of the center point of the black point group in the second sun image), and the like. At this time, the first sun image or the second sun image includes a continuous line image of the sun (for example, an SDO HMI image) and a magnetic field front image, an ultraviolet front image of the sun, and an H-alpha front image of the sun.

For example, the control unit 400 extracts the first previous time black spot group information, the second previous time black spot group information, the third previous time black point group information, and the fourth previous time black point group information from the first sun image at the previous time. Here, the first previous time blackspot group information may include at least one of a generation time of the first sun image, a first latitude of a center point in the first black spot group in the first sun image, a first longitude of a center point in the first black spot group, A size of the first latitude, a size of the first hardness, and the like. The second previous time black spot group information may include at least one of a generation time of the first sun image, a second latitude of a center point in a second black spot group in the first sun image, a second longitude of a center point in the second black spot group, The size of the second latitude, the size of the second hardness, and the like. The third previous time black spot group information may include a generation time of the first sun image, a third latitude of a center point in a third black spot group in the first sun image, a third longitude of a center point in the third black spot group, The size of the third latitude, the size of the third hardness, and the like. In addition, the fourth preceding time black spot group information may include at least one of a generation time of the first sun image, a fourth latitude of the center point in the fourth black spot group in the first sun image, a fourth longitude of the center point in the fourth black spot group, The size of the fourth latitude, the size of the fourth hardness, and the like.

In addition, the controller 400 extracts first tracking visual black spot group information, second tracking visual black spot group information, third tracking visual black spot group information, and fourth tracking visual black spot group information from the second sun image at the current time. Here, the first tracking time spectral black spot group information may include at least one of generation time of the second sun image, eleventh latitude of the center point in the eleventh black spot group in the second sun image, eleventh longitude of the center point in the eleventh black spot group, A size of the eleventh latitude, a size of the eleventh hardness, and the like. The second tracking-time blackspot group information may include at least one of a generation time of the second sun image, a twelfth latitude of a center point in a twelfth black spot group in the second sun image, a twelfth longitude of a center point in the twelfth black spot group, The size of the twelfth latitude, the size of the twelfth hardness, and the like. The thirteenth tracking visual black spot group information may include at least one of a generation time of the second sun image, a thirteenth latitude of a center point in the thirteenth black spot group in the second sun image, a thirteenth longitude of a center point in the thirteenth black spot group, The size of the 13th latitude, the size of the 13th hardness, and the like. The fourth tracking time blackspot group information may include at least one of the generation time of the second sun image, the 14th latitude of the center point in the 14th black spot group in the second sun image, the 14th longitude of the center point in the 14th black spot group, The size of the 14th latitude, the size of the 14th hardness, and the like (S210).

Then, the control unit 400 confirms (or determines) whether the difference between the generation time of the second sun image and the generation time of the first sun image is larger than a predetermined value. Here, the predetermined value may be a value obtained by dividing a sun's rotation period (for example, 27 days) previously set as an initial value by a preset constant value (for example, 3).

For example, the controller 400 determines whether the difference between the generation time of the second sun image and the generation time of the first sun image is greater than a predetermined value of 9 days (S220).

If it is determined that the difference between the generation time of the second sun image and the generation time of the first sun image is greater than a predetermined value, the controller 400 determines that the sunspot group (Or a black spot group corresponding to the tracking black spot group information).

In addition, the control unit 400 stores information on the black spot group for which the new management number is set in the storage unit 200. FIG.

For example, when the difference between the generation time of the second sun image in the twelfth tracking time visual blackspot group information and the generation time of the first sun image in the second preceding visual blackspot group information is greater than a preset value of 9 days, 400 sets (or gives) a new management number to the twelfth sunspot group detected from the second sun image, and stores information about the set twelfth sunspot group in the storage unit 200 (S230).

If it is determined that the difference between the generation time of the second sun image and the generation time of the first sun image is less than or equal to a predetermined value, the control unit 400 determines that the confirmed (or extracted) Reflecting the sun rotation period reflecting black point group information for the first sun image by reflecting the rotation period of the predetermined sun in the previous time black spot group information for the first sun image in the first sun image.

That is, if it is determined that the difference between the generation time of the second sun image and the generation time of the first sun image is less than or equal to a preset value, the controller 400 controls the first sun image And extracts the black point group information from the first sun image rotated by the rotation period of the sun. At this time, the information of the black spot group extracted from the first sun image rotated by the rotation period of the sun (or the sun rotation period reflecting black spot group information about the first sun image) The state in which the hardness of the center point of the black point group is rotated by the rotation period of the sun is reflected.

Here, the sun rotation period reflecting black spot group information (or the black spot group information extracted from the first sun image rotated by the rotation period of the sun) for the first sun image is the latitude of the center point of the black spot group in the first sun image, (Or the magnitude of the latitude of the center point of the black point group in the first sun image), the magnitude of the hardness (or the center point of the black point group in the first sun image The magnitude of the hardness of the substrate) and the like. At this time, the solar rotation period reflecting hardness of the center point of the black point group in the first sun image can be calculated as shown in the above-mentioned equation (1).

For example, when the difference between the generation time of the second sun image and the generation time of the first sun image is less than or equal to a preset value of 9 days, the controller 400 controls the first sun image to rotate the sun (For example, 27 days), and extracts the black point group information in the first sun image rotated by the rotation period of the sun. Here, in the first sun image rotated by the rotation period of the sun The black spot group information includes a first latitude of a center point in the first black spot group, a solar latitude period reflection hardness of a center point in the first black spot group, a magnitude of the first latitude, a magnitude of a first longitude of a center point in the first black spot group (S240).

Thereafter, the control unit 400 generates a first matching set based on the tracking black spot group information and the sun rotation period reflecting black spot group information on the first sun image. Here, the first matching set is generated (or set) so as to satisfy both of the equations (2) and (3) (or satisfy the AND operation).

That is, when the absolute value of the difference between the hardness of the center point of the black spot group in the second sun image and the solar rotation period reflectivity hardness of the center point of the black spot group in the first sun image, as shown in Equation (2) A value obtained by multiplying a larger one of the magnitude of the set first angle (for example, 5 degrees) and the magnitude of the center point of the black point group in the first sun image (or the second sun image) by a predetermined first constant (for example, 2) .

In addition, the controller 400 calculates the absolute value of the difference between the latitude of the center point of the black point group in the second sun image and the latitude of the center point of the black point group in the first sun image, as shown in Equation (3) (For example, 3 degrees) and a magnitude of the magnitude of the latitude of the center point of the black point group in the first sun image (or the second sun image) multiplied by a predetermined second constant (for example, 2) (S250).

Then, the controller 400 calculates an absolute value of the difference between the hardness of the center point of the black point group in the second sun image and the solar rotation period reflectivity hardness of the center point of the black point group in the first sun image, based on the generated first matching set Excludes the black spot group which is larger than the standard deviation between the hardness of the center point of the black spot group in the second sun image and the solar rotation period reflection hardness of the center point of the black spot group in the first sun image.

For example, the difference between the hardness of the center point of the thirteenth sunspot group included in the thirteenth tracking time blackspot group information and the solar photoperiod reflecting hardness of the center point of the third sunspot group included in the third preceding time blackspot group information, When the absolute value of the thirteenth sunspot group is greater than the standard deviation between the hardness of the center point of the thirteenth sunspot group and the solar rotation period reflecting hardness of the center point of the third sunspot group, The black spot group is excluded (S260).

Thereafter, the control unit 400 calculates the difference between the generation time of the second and first sun images, the difference between the second sun image and the average movement distance of the corresponding black spot group in the first sun image, Generate (or calculate) a period. Here, the updated rotation period of the sun can be expressed by Equation (4).

That is, the controller 400 divides the difference between the generation time of the second and first sun images and the product of 360 ° by the average movement distance of the corresponding black spot group as shown in Equation (4) (S270).

Thereafter, the control unit 400 may reflect the updated sun rotation cycle of the generated (or calculated) sun to the previous time sunspot information for the first sun image to update the updated solar rotation cycle And generates reflecting black spot information. At this time, the updated sun rotation period reflecting black spot group information for the first sun image reflects the state in which the hardness of the center point of the black spot group in the first sun image in the previous sun spot group information is rotated by the rotation period of the updated sun .

Here, the updated solar rotation period reflecting black spot group information (or the black spot group information extracted from the first sun image rotated by the rotation period of the updated sun) for the first sun image is the center of the black spot group in the first sun image (Or the magnitude of the latitude of the center point of the black point group in the first sun image), the magnitude of the latitude (or the magnitude of the latitude), the latitude, the updated sun's rotation period reflectivity of the center point of the black point group in the first sun image, 1 magnitude of the hardness of the center point of the black point group in the sun image). At this time, the rotation-period-reflecting hardness of the sun of the center point of the black point group in the first sun image can be calculated as shown in Equation (5).

For example, the controller 400 rotates the first sun image by the lunar cycle of the updated sun, and extracts the black spot group information from the first sun image rotated by the rotation period of the updated sun. Herein, the information of the black spot group extracted from the first sun image rotated by the rotation period of the updated sun is the first latitude of the center point in the first black spot group, the rotation period reflection hardness of the updated sun of the center point in the first black spot group The magnitude of the first latitude, the magnitude of the first hardness of the center point in the first black spot group, and the like (S280).

Thereafter, the control unit 400 generates a second matching set based on the tracking-time black spot group information and the updated solar rotation period reflecting black spot group information on the first sun image. Here, the second matching set is generated so as to satisfy both of Equations (6) and (7).

That is, the controller 400 calculates the absolute value of the difference between the hardness of the center point of the black point group in the second sun image and the updated solar rotation period reflectivity hardness of the center point of the black point group in the first sun image, as shown in Equation (6) Is set to be smaller than a larger value among the predetermined first angle (for example, 5 degrees) and the magnitude of the center of gravity of the black point group in the first sun image (or the second sun image).

Also, the controller 400 may calculate the absolute value of the difference between the latitude of the center point of the black point group in the second sun image and the updated sun rotation period reflection latitude of the center point of the black point group in the first sun image, as shown in Equation (7) Is set to be smaller than a larger value among the predetermined second angle (for example, 3 degrees) and the magnitude of latitude of the center point of the black point group in the first sun image (or the second sun image) (S290).

Thereafter, the control unit 400 determines (or confirms) whether the black spot group in the second sun image satisfies the generated second matching set based on the generated second matching set (S300).

If the determination result (or the confirmation result) indicates that the black spot group in the second sun image does not satisfy the generated second matching set, the control unit 400 sets a new management number for the black spot group detected from the second sun image Setting.

For example, when the 14th black spot group corresponding to the 14th tracking black spot group information in the second sun image does not satisfy the generated second matching set, that is, when the latitude of the center point of the 14th black spot group in the second sun image And the updated sun rotation period reflecting latitude of the center point of the fourth sunspot group in the first sun image is larger than the preset second angle, the control unit (400) adds a new management number And stores information on the set 14th black spot group in the storage unit 200 (S310).

As a result of the determination, if the black spot group in the second sun image satisfies the generated second matching set, the control unit 400 controls the corresponding black spot group in the second sun image to the corresponding black spot group ( (Or the corresponding black spot group in the first sun image).

For example, when the eleventh black spot group corresponding to the eleventh tracking time black spot group information in the second sun image satisfies the generated second matching set, that is, when the longitude of the center point of the eleventh black spot group in the second sun image The absolute value of the difference between the updated solar rotation period reflecting hardness of the center point of the first black spot group in the first sun image is smaller than the predetermined first angle and the latitude of the center point of the eleventh black spot group in the second sun image When the absolute value of the difference between the updated sun rotation period reflecting latitudes of the center point of the first black spot group in the first sun image is smaller than the preset second angle, the control unit (400) The same management number as that of the first black spot group in the sun image is succeeded (S320).

As described above, the embodiment of the present invention tracks the sunspot group by comparing the sunspot group that is automatically recognized based on the sun image provided in real time with the previous sun image, .

In addition, as described above, the embodiment of the present invention updates the solar rotation cycle based on the sun image provided in real time, tracks the sunspot group based on the updated new solar rotation cycle, Tracking can be performed and the user's convenience can be improved.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or essential characteristics thereof. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

The present invention easily confirms a black spot group newly generated or disappear by judging whether or not the black spot group existing in the comparative image is the same based on the average rotation speed of the sun surface and the time difference between the comparison target images, , And time series analysis.

10: sunspot tracking device 100: communication part
200: storage unit 300: display unit
400:

Claims (15)

1. A sunspot tracking apparatus for tracking a sunspot group contained in a sun image transmitted from an external server or a satellite,
A storage unit for storing previous time black spot group information extracted from the first sun image at a previous time;
A communication unit for receiving a second sun image at a current time point transmitted from the external server or satellite; And
And the difference between the generation time of the second sun image included in the tracking time blackspot group information and the generation time of the first sun image included in the previous time blackspot group information Generating sunbeam rotation period reflecting sunspot group information for the first sun image by reflecting the rotation period of the sun preset in the previous time sunspot information when the difference is less than or equal to a predetermined value, And a control unit for generating a first matching set based on solar rotation period reflecting black spot group information for the image,
Wherein,
And the first solar image included in the sun clock cycle reflecting black spot group information for the first sun image and the longitude of the center point of the black spot group in the second sun image included in the tracking time black spot group information based on the generated first matching set, Wherein the absolute value of the difference between the solar rotation period reflecting hardness at the center point of the black point group in the image is greater than the standard deviation between the longitude at the center point of the black point group in the second sun image and the solar rotational period reflecting hardness at the center point of the black point group in the first sun image Of the sunspot group. The method according to claim 1,
The previous time black spot group information includes:
A magnitude of the center point of the black point group in the first sun image, a magnitude of the latitude of the center point of the black point group in the first sun image, and a second magnitude of the first sun image, The magnitude of the hardness of the center point of the black point group in the sun image,
The tracking-time black spot group information includes:
The magnitude of the center point of the black point group in the second sun image, the magnitude of the latitude of the center point of the black point group in the second sun image, and the magnitude of the latitude of the center point of the black point group in the second sun image, And the magnitude of the hardness of the center point of the black point group in the sun image. The method according to claim 1,
The predetermined value is a value
Wherein the initial value is a value obtained by dividing a preset rotation period of the sun by a preset constant value. The method according to claim 1,
Wherein,
When the difference between the generation time of the second sun image and the generation time of the first sun image is larger than a preset value, a new management number is set in the black spot group detected from the second sun image Device. The method according to claim 1,
The solar rotation period reflecting black spot group information for the first sun image is obtained by:
The solar rotation period reflecting latitude of the center point of the black spot group in the first sun image, the solar rotating period reflecting hardness of the center point of the black spot group in the first sun image, the magnitude of the solar rotational period reflecting latitude of the center point of the black spot group in the first sun image, And the magnitude of the solar rotation period reflecting hardness of the center point of the black point group in the first sun image. The method according to claim 1,
Wherein,
When the difference between the generation time of the second sun image and the generation time of the first sun image is less than or equal to a preset value, the first sun image is rotated by the rotation cycle of the sun, And the black spot group information is extracted from the rotated first sun image. delete The method according to claim 1,
Wherein,
And a difference between the generation time of the second sun image and the generation time of the first sun image and a difference between the second sun image and the average movement distance of the corresponding black spot group in the first sun image, Of the sunspot group. 9. The method of claim 8,
Wherein,
And generates updated sun rotation period reflecting black spot group information for the first sun image by reflecting the calculated rotation period of the sun to the previous time black spot group information. 10. The method of claim 9,
Wherein the updated solar rotation period reflecting black spot group information for the first sun image is obtained by:
The magnitude of the latitude of the center point of the black spot group in the first sun image and the magnitude of the latitude of the center point of the black point group in the first sun image, And the magnitude of the hardness of the center point of the black point group in the black point group. 10. The method of claim 9,
Wherein,
And generates a second matching set on the basis of the tracking black point group information and the updated solar rotation period reflecting black point group information on the first sun image. 12. The method of claim 11,
Wherein,
And sets a new management number in the black spot group detected from the second sun image when the black spot group in the second sun image does not satisfy the generated second matching set based on the generated second matching set Sunspot tracking device. 12. The method of claim 11,
Wherein,
When the black spot group in the second sun image satisfies the generated second matching set based on the generated second matching set, the black spot group detected from the second sun image is added to the corresponding black spot group in the first sun image And sets the same management number as that of the sunspot group tracking device. 1. A method for tracking a sunspot group that tracks a sunspot group contained in a sun image transmitted from an external server or satellite,
Confirming the previous time black spot group information extracted from the first sun image at a previous time stored in the storage unit through the control unit;
Receiving a second sun image at a current time point transmitted from the external server or satellite through a communication unit;
Extracting tracking black point group information from the second sun image through the control unit;
Whether or not the difference between the generation time of the second sun image included in the tracking time blackspot group information and the generation time of the first sun image included in the previous time blackspot group information is greater than a preset value ;
When the difference between the generation time of the second sun image and the generation time of the first sun image is less than or equal to the predetermined value, the rotation cycle of the sun preset in the previous time Generating solar rotation period reflecting black spot group information for the first sun image;
Generating a first matching set based on the tracking black point group information and the sun rotation period reflecting black point group information on the first sun image through the control unit;
Setting a new control number in the black spot group detected from the second sun image when the difference between the generation time of the second sun image and the generation time of the first sun image is greater than the predetermined value through the control unit ;
The control unit is configured to calculate, based on the generated first matching set, the hardness of the center point of the black point group in the second sun image included in the tracking time black spot group information and the solar rotation period reflecting black point group information for the first sun image Wherein the absolute value of the difference between the solar cycle period reflectivity hardness at the center point of the black spot group in the first sun image is greater than the hardness at the center point of the black spot group in the second sun image, Excluding the black point group larger than the standard deviation;
And an updating unit for updating, based on the difference between the generation time of the second sun image and the generation time of the first sun image, and the average movement distance of the black spot group in the first sun image and the second sun image, Calculating a rotation cycle of the sun;
Generating updated sun rotation period reflecting black spot group information for the first sun image by reflecting the calculated rotation period of the sun to the previous time black spot group information through the control unit;
Generating a second matching set based on the tracking time speckle information and the updated solar rotation period reflecting speckle group information on the first sun image through the control unit;
Determining whether a black spot group in the second sun image satisfies the generated second matching set based on the generated second matching set through the control unit;
When the black spot group in the second sun image does not satisfy the generated second match set on the basis of the generated second matching set through the control unit, a new control number is added to the black spot group detected from the second sun image ; And
Wherein, when the black spot group in the second sun image satisfies the generated second matching set on the basis of the generated second matching set, the black spot group detected from the second sun image is displayed in the first sun image And setting the same management number as the corresponding black spot group in the black spot group tracking method. delete

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