KR102578568B1 - Threat assessment system and method for anti-air target in surface fleet combat system - Google Patents

Abstract

The present invention relates to a threat assessment system and method for an anti-air target in surface fleet combat system, which may clearly identify dangerous information of the anti-air target by considering the armament capability and arm range of the anti-air target and enable more reliable and precise threat assessment for the identified target. The system comprises: a time-to-goal (TTG) calculation unit which calculates TTG values for detected targets, respectively; a target database which stores target information on a plurality of targets and the calculated TTG values for the targets; a target identification unit which tracks and detects targets through a plurality of sensor cameras and generates identification information on currently tracked targets for the tracked and detected targets by using the target information stored in the database; and a threat evaluation unit which calculates a threat index for targets by using each target information identified by the target identification unit and the TTG values stored in the target database.

Description

Threat assessment system and method for anti-air target in surface fleet combat system}

The present invention relates to a threat assessment system and method for anti-aircraft targets in a surface combat system. In particular, it clearly identifies risk information of anti-aircraft targets by considering the anti-aircraft target's armament capability and armament range, and provides information on the identified targets. It concerns a threat assessment system and method for anti-aircraft targets in a surface ship combat system that allows for more detailed and reliable threat assessment.

Among the targets, we are responding to threats by sorting the enemy targets that pose a threat in order of priority based on their ship size.

However, the threat ranking of each friendly ship is not systematically managed among the friendly ships.

Accordingly, a means is required to provide a systematic response by integrated management of the threat ranking of enemy targets based on friendly ships or designated friendly ships within a specific area.

In addition, more priority threat ranking management is needed for friendly ships that are of high importance among friendly ships.

On the other hand, in terms of ships, it is difficult to cope with the mobility of anti-aircraft targets such as fighter jets or missiles.

Due to the agility of these mobile targets, it is not easy to establish a threat ranking based on self-ship. For example, when flying in a zigzag manner, it is difficult to determine whether the ship is approaching or not, and it can quickly become a threatening target for a short period of time.

Meanwhile, the ship's anti-aircraft guided weapon system detects or shoots down enemy fighters and airplanes at major military facilities, ground force field task forces, and airfields to improve short-, medium-, and long-range anti-aircraft defense capabilities. It is for.

The anti-aircraft guided weapon system monitors/manages aerial tracks, conducts a threat assessment of the threat tracks, calculates the information necessary to shoot down the track in order to launch a guided missile on the launcher, and inputs the necessary data into the computer inside the guided missile. Conduct.

In order to effectively respond to aerial threats from enemy aircraft, the anti-aircraft guided weapon system processes not only the tracks detected by its own sensors, but also external tracks received by linking with multiple adjacent systems and tactical data links, and includes self-detected tracks and external tracks. It determines whether the tracks are identical and shares track information with external systems to process the information necessary to shoot down threatening tracks.

In addition, threat assessment technology is applied to determine the order of engagement against the enemy aircraft that is the target of defense for air defense in a situation of simultaneous engagement with enemy aircraft and multiple targets.

Meanwhile, unlike in the past, in modern times, with improved sensor detection performance and increased armament range, it is necessary to be able to respond even if the distance from the self-ship is long and it takes a long time to approach, and the concept of not only self-ship defense but also area defense and aircraft carrier forward defense is applied. A threat assessment function more suited to battlefield situations is required.

This anti-aircraft threat assessment technology according to the prior art performed threat assessment through TTG (Time To Goal) calculation between the ship and the threat target. That is, the anti-aircraft threat assessment algorithm in the surface ship combat system according to the prior art is performed by calculating the TTG value and measuring the risk as shown in Equation 1 below.

[Equation 1]

Threat Score=999-TTG*C+Operator Weight

At this time, in Equation 1, TTG is the time it takes for the target to approach the ship, and is calculated as the distance between the target and the ship divided by the larger of the target's radial speed and the lowest speed. Here, the radial speed refers to the relative speed at which the target approaches the ship, and the minimum speed refers to a preset engagement setting constant.

In addition, C refers to the engagement constant, and the current engagement constant C is a fixed value of 10. Accordingly, the threat index is calculated only for targets with a TTG value of less than 100 seconds, and the threat index is calculated as 0 for targets with a TTG value of 100 seconds or more. And, the operator weight refers to the weight applied by the operator's judgment.

As such, the anti-aircraft threat assessment algorithm in the surface ship combat system has a problem in that a threat assessment appropriate for the battlefield situation is not performed as a fixed engagement constant value is applied. In the case of the TTG-centered threat assessment as described above, the self-ship is overlooked. There is a problem where a thin target is evaluated as more dangerous depending on the distance than a threat approaching from a self-propelled ship.

Therefore, the present invention is to solve the problems caused by the prior art, and the purpose of the present invention is to enable surface ship combat to perform a more detailed threat assessment by reflecting the detection accuracy value in consideration of the ship's sensors and weapon characteristics. The system provides a threat assessment system and method for anti-aircraft targets.

In other words, another purpose of the present invention is to clearly identify the risk information of the anti-aircraft target by taking into account the armament capability and armament range of the anti-aircraft target, and to enable a more detailed and reliable threat assessment of the identified target. The purpose is to provide a threat assessment system and method for anti-aircraft targets in a combat system.

However, the problem to be solved by the present invention is not limited to the problems described above, and other problems may exist.

A threat assessment system for anti-aircraft targets in a surface ship combat system according to an embodiment of the present invention to achieve the above object includes a TTG calculation unit that calculates TTG (Time To Goal) values for each detected target; a target database that stores target information on a plurality of targets and TTG values for the calculated targets; a target identification unit that tracks and detects targets through a plurality of sensor cameras and generates identification information for currently tracked targets using target information stored in the database for the tracked and detected targets; And it may include a threat evaluation unit that calculates a threat index for the targets using each target information identified in the target identification unit and the TTG value stored in the target database.

Target information stored in the target database may be anti-aircraft point target information.

It may further include a target identification information storage unit that stores identification information for each target generated by the target identification unit.

The identification information stored in the target identification information storage unit may include armament capability information and armament range information for each target type.

The target type may include at least one of missiles, fighter jets, helicopters, transport aircraft, and civil aircraft.

The threat index calculated by the threat assessment unit can be calculated using the equation below.

[Equation]

Threat Index = (999 - (TTG * C)) * (Armed Capability/100) * (Armed Range)

Here, the TTG is the time it takes for the target to approach the ship, and is calculated as the distance between the target and the ship divided by the larger of the target's radial speed and the lowest speed, and the radial speed is the target's approaching ship. It refers to relative speed, and the minimum speed refers to a preset engagement setting constant.

In the above equation, the armament capability can be set to different values for each target (for example, 100 for missiles, 90 for fighters, 80 for helicopters, 10 for transport aircraft, and 1 for civil aircraft).

In the above equation, the arming range value can be set to 1 if the ship is located within the maximum range of the target armament, and 0.1 if it is not.

Meanwhile, a method for assessing threats against anti-aircraft targets in a surface ship combat system according to another embodiment of the present invention includes calculating Time To Goal (TTG) values for each detected target; Storing target information on a plurality of targets and TTG values for the calculated targets in a target database; Tracking and detecting a target through a plurality of sensor cameras, and generating identification information for the currently tracked targets using target information stored in the database for the tracked and detected targets; And it may include calculating a threat index for the targets using each of the generated target information and the TTG value stored in the target database.

Target information stored in the target database may be anti-aircraft point target information.

The method may further include storing identification information for each of the generated targets in a memory.

Identification information stored in the memory may include armament capability information and armament range information for each target type.

The target type may include at least one of missiles, fighter jets, helicopters, transport aircraft, and civil aircraft.

The threat index can be calculated using the equation below.

[Equation]

Threat Index = (999 - (TTG * C)) * (Armed Capability/100) * (Armed Range)

Here, the TTG is the time it takes for the target to approach the ship, and is calculated as the distance between the target and the ship divided by the larger of the target's radial speed and the lowest speed, and the radial speed is the target's approaching ship. It refers to relative speed, and the minimum speed refers to a preset engagement setting constant.

In the above equation, the armament capability can be set to different values for each target (for example, 100 for missiles, 90 for fighters, 80 for helicopters, 10 for transport aircraft, and 1 for civil aircraft).

In the above equation, the arming range value can be set to 1 if the ship is located within the maximum range of the target armament, and 0.1 if it is not.

A computer program according to another aspect of the present invention for solving the above-described problem is combined with a computer, which is hardware, to execute a threat assessment method for defending the surface ship fleet area, and is stored in a computer-readable recording medium.

Other specific details of the invention are included in the detailed description and drawings.

According to the present invention, by considering the ship's sensors and armament characteristics and reflecting the detection precision value, that is, the variable engagement constant value, more detailed threat assessment is possible even for targets that take a long time to approach the ship at a longer distance, allowing for more detailed threat assessment depending on the situation. It has the advantage of being able to perform a more detailed anti-aircraft threat assessment.

In addition, according to the present invention, there is an advantage in that it is possible to clearly identify risk information of an anti-aircraft target by considering the armament capability and armament range of the anti-aircraft target, and to perform a more detailed threat assessment on the identified target.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

The drawings attached below are intended to aid understanding of the present embodiment and provide examples along with a detailed description. However, the technical features of this embodiment are not limited to specific drawings, and the features disclosed in each drawing may be combined to form a new embodiment.
1 is a diagram showing the block configuration of a threat assessment system for anti-aircraft targets in a surface ship combat system according to the present invention.
Figure 2 is a diagram showing a classification table for target identification information applied to the present invention.
Figure 3 is a diagram showing an example of application of a threat assessment system and method for an anti-aircraft target in a surface ship combat system according to the present invention.
Figure 4 is a diagram illustrating an operation flowchart for a method of assessing threats against anti-aircraft targets in a surface ship combat system according to the present invention.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. The present embodiments are merely provided to ensure that the disclosure of the present invention is complete and to provide a general understanding of the technical field to which the present invention pertains. It is provided to fully inform the skilled person of the scope of the present invention, and the present invention is only defined by the scope of the claims.

The terminology used herein is for describing embodiments and is not intended to limit the invention. As used herein, singular forms also include plural forms, unless specifically stated otherwise in the context. As used in the specification, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other elements in addition to the mentioned elements. Like reference numerals refer to like elements throughout the specification, and “and/or” includes each and every combination of one or more of the referenced elements. Although “first”, “second”, etc. are used to describe various components, these components are of course not limited by these terms. These terms are merely used to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may also be a second component within the technical spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used with meanings commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless clearly specifically defined.

Before explaining the present invention, with recent developments in image identification technology and AI, there is a trend to use sensor tracking functions to determine identification information about threats through camera images mounted on sensors.

Well-known information among the identification information is pre-entered into the database, and based on the entered data, the operator can directly map the identification information to the enemy, and if identified as a target, the identification information can be mapped automatically.

Accordingly, in the surface ship combat system threat assessment, identification information is reflected as a key evaluation element to identify more dangerous enemies and is reflected in the anti-aircraft threat assessment.

Hereinafter, the threat assessment system and method for anti-aircraft targets in the surface ship combat system according to the present invention will be described in detail with reference to the attached drawings.

Figure 1 is a diagram showing the block configuration of a threat assessment system for anti-aircraft targets in a surface ship combat system according to the present invention, Figure 2 is a diagram showing a classification table for target identification information applied to the present invention, and Figure 3 is a diagram showing a classification table for target identification information applied to the present invention. This is a diagram showing an example of application of the threat assessment system and method for anti-aircraft targets in the surface ship combat system according to the present invention.

Referring to FIG. 1, the threat assessment system for anti-aircraft targets in the surface ship combat system according to the present invention includes a Time to Goal (TTG) calculation unit 100, a target database 200, a target identification unit 300, and a target identification unit. It may include an information storage unit 400 and a threat assessment unit 500.

The TTG calculation unit 100 calculates TTG values for targets using information sensed from a plurality of sensors and then stores the calculated TTG values in the target database 200. Here, the TTG calculation operation method of the TTG calculation unit 100 is a technical idea that is already known and applied to the prior art, and detailed description will be omitted due to the judgment that it may obscure the gist of the present invention.

The target database 200 stores TTG values for targets calculated through the TTG calculation unit 100 and stores anti-aircraft point target information for a number of anti-aircraft targets.

In the case of a close-range target, the target identification unit 300 allows an operator to manually change the identification information of the target identified in the sensor through a camera mounted on the sensor.

In addition, with recent developments in image identification technology and AI, the target's identification information can be automatically determined through the camera mounted on the sensor.

The target identification unit 300 tracks and detects targets through a plurality of sensor cameras, and identifies currently tracked targets using anti-aircraft point target information stored in the target database 200 for the tracked and detected targets. After performing, identification information about the identified targets is stored in the target identification information storage unit 400. Here, the identification information stored in the target identification information storage unit 400 may include armament capability information and armament range information for each target type. The target type may include at least one of missiles, fighter jets, helicopters, transport aircraft, and civil aircraft.

Here, the target identification information stored in the target identification information storage unit 400 is the same as the table shown in FIG. 2.

As shown in FIG. 2, target types may include at least one of missiles, fighter jets, helicopters, transport aircraft, and civil aircraft, and armament capability values and armament range information may be stored to correspond to each target.

The threat assessment unit 500 uses the TTG value for each target stored in the target database 200 and the identification information for each target stored in the target identification information storage unit 400 to calculate the threat index for the targets using Equation 2 below: It can be calculated using .

[Equation 2]

Threat Index = (999 - (TTG * C)) * (Armed Capability/100) * (Armed Range)

Here, the TTG is the time it takes for the target to approach the ship, and is calculated as the distance between the target and the ship divided by the larger of the target's radial speed and the lowest speed, and the radial speed is the target's approaching ship. It refers to relative speed, and the minimum speed refers to a preset engagement setting constant.

In addition, in Equation 2, the armament capacity can be set to 100 for missiles, 90 for fighters, 80 for helicopters, 10 for transport aircraft, and 1 for civil aircraft, as shown in FIG. 2, and this value is added to the above figures. It should be understood that it is not limited and that the settings can be changed by the operator.

Meanwhile, in Equation 2, the armament range value can be set to 1 if the ship is located within the maximum range of the target armament, and 0.1 if it is not, and it should be understood that this value can also be set and changed by the operator.

The threat index calculation according to the above-described prior art calculates the threat index according to the time it takes to reach the ship, but in the present invention, it can be seen that the threat index can vary greatly depending on the armament ability or armament range for each target type (class). there is.

Accordingly, by applying a relative calculation ratio to the threat index calculation value according to the prior art, the range of change in the threat index due to arming capability and arming range can be greatly amplified, increased or decreased.

The method of calculating the threat index for targets using Equation 2 above can be usefully applied to the situation shown in FIG. 3.

For example, the enemy fighter MIG21 has an armed range of 90 NM, and the enemy combat helicopter Lynx has an armed range of 50 NM. As shown in Figure 3, in the case of the enemy fighter MIG21, the current self-propelled ship It is moving in this direction, and in this case, the threat index may be judged to be low if calculated using the existing threat index calculation method, that is, calculated according to Equation 1. However, the maximum stopping range of the MIG21 is 90 NM, which means that the ship is in a position where it can be attacked, and if it turns sharply in the direction of the ship, there is a risk of being attacked immediately, so the threat index must be increased in this situation.

Also, in the case of the Lynx, an enemy combat helicopter, if it is moving in the direction of the ship and has a high speed, it can be judged as the maximum threat when calculating the threat index using the conventional threat index method, that is, Equation 1, but the maximum range of the Lynx is Since it is 50NM, you will not be able to attack your own ship until you enter 50NM. Therefore, there is no need to increase the threat index with simple distance and speed alone.

In other words, if the ship is not within the enemy's armament range, there is no need to significantly increase the threat index, so in this situation, if armament capability and armament range are reflected according to the threat index calculation method according to the present invention, such as Equation 2 above, a little more A reliable threat index can be reflected.

A step-by-step explanation of the threat assessment method for anti-aircraft targets in the surface combatant system according to the present invention, which corresponds to the operation of the threat assessment system for anti-aircraft targets in the surface combatant system according to the present invention as described above, with reference to FIG. 4. Do this.

Figure 4 is a diagram showing an operation flowchart for the threat assessment method for anti-aircraft targets in the surface ship combat system according to the present invention.

Referring to FIG. 4, first, TTG values for targets are calculated using information sensed from a plurality of sensors, and then the calculated TTG values are stored in the database (S410). Here, the TTG calculation operation method is a technical idea that is already known and applied to the prior art, and detailed description will be omitted due to the judgment that it may obscure the gist of the present invention. Meanwhile, the database may store anti-aircraft point target information for a number of anti-aircraft targets in addition to TTG for the calculated targets.

Next, the target is tracked and detected through a plurality of sensor cameras, and the currently tracked targets are identified using the anti-aircraft point target information stored in the database for the tracked and detected targets, and then the identified target is identified. After generating identification information for the targets (S420), the identification information for the generated targets is stored in memory (S430). Here, the identification information stored in the memory may include armament capability information and armament range information for each target type. The target type may include at least one of missiles, fighter jets, helicopters, transport aircraft, and civil aircraft.

Typically, in the case of close-range targets, the operator can manually change the identification information of the target identified by the sensor through the camera mounted on the sensor, and with recent developments in image identification technology and AI, the target can be automatically targeted through the camera mounted on the sensor. The identification information can be determined. Here, the target identification information stored in the memory is the same as the table shown in FIG. 2, and since this has been described above, detailed description will be omitted.

Next, the threat index for the targets is calculated using Equation 2 above using the TTG value for each target stored in the database and the identification information for each target stored in the memory (S440).

Here, the threat index calculation according to the above-described prior art, that is, the calculation of the threat index using Equation 1, calculates the threat index according to the time to reach the box, but in Equation 2 according to the present invention described above, Since the threat index is calculated based on the armed ability or armed range for each target type (class), it can be seen that the threat index can vary greatly. Accordingly, by applying a relative calculation ratio to the threat index calculation value according to the prior art, the range of change in the threat index due to arming capability and arming range can be greatly amplified, increased or decreased.

The threat assessment method for anti-aircraft targets in the surface ship combat system according to an embodiment of the present invention described above may be implemented as a program (or application) and stored in a medium to be executed in combination with a computer, which is hardware.

The above-mentioned program is C, C++, JAVA, Ruby, and It may include code encoded in a computer language such as machine language. These codes may include functional codes related to functions that define the necessary functions for executing the methods, and include control codes related to execution procedures necessary for the computer's processor to execute the functions according to predetermined procedures. can do. In addition, these codes may further include memory reference-related codes that indicate at which location (address address) in the computer's internal or external memory additional information or media required for the computer's processor to execute the above functions should be referenced. there is. In addition, if the computer's processor needs to communicate with any other remote computer or server in order to execute the above functions, the code uses the computer's communication module to determine how to communicate with any other remote computer or server. It may further include communication-related codes regarding whether communication should be performed and what information or media should be transmitted and received during communication.

The storage medium refers to a medium that stores data semi-permanently and can be read by a device, rather than a medium that stores data for a short period of time, such as a register, cache, or memory. Specifically, examples of the storage medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc., but are not limited thereto. That is, the program may be stored in various recording media on various servers that the computer can access or on various recording media on the user's computer. Additionally, the medium may be distributed to computer systems connected to a network, and computer-readable code may be stored in a distributed manner.

The description of the present invention described above is for illustrative purposes, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical idea or essential features of the present invention. will be. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. For example, each component described as unitary may be implemented in a distributed manner, and similarly, components described as distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the claims described below rather than the detailed description above, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention. do.

100: TTG calculation unit
200: Target database
300: target identification unit
400: Target identification information storage unit
500: Threat Assessment Department

Claims (16)

In the threat assessment system for anti-aircraft targets in the surface combat system,
A TTG calculation unit that calculates TTG (Time To Goal) values for each detected target;
a target database that stores target information on a plurality of targets and TTG values for the calculated targets;
a target identification unit that tracks and detects targets through a plurality of sensor cameras and generates identification information for currently tracked targets using target information stored in the database for the tracked and detected targets; and
It includes a threat evaluation unit that calculates a threat index for the targets using each target information identified in the target identification unit and the TTG value stored in the target database,
The target information stored in the target database is anti-aircraft point target information,
It further includes a target identification information storage unit that stores identification information for each target generated by the target identification unit,
The identification information stored in the target identification information storage unit includes armament capability information and armament range information for each target type,
The target type includes at least one of missiles, fighter jets, helicopters, transport aircraft, and civil aircraft,
The threat index calculated by the threat assessment unit is calculated using the equation below,
[Equation]
Threat Index = (999 - (TTG * C)) * (Armed Capability/100) * (Armed Range)
(Here, the TTG is the time it takes for the target to approach the ship, and is calculated as the distance between the target and the ship divided by the larger of the target's radial speed and the lowest speed, and the radial speed is the target's own ship's speed. It refers to the approaching relative speed, and the minimum speed refers to the preset engagement setting constant.)
In the above equation, the armament capability is set to different values for each target (100 for missiles, 90 for fighters, 80 for helicopters, 10 for transport aircraft, and 1 for civil aircraft),
In the above equation, the armed range value is set to 1 if the ship is located within the maximum range of the target armament, and 0.1 if it is not located. A threat assessment system for anti-aircraft targets in a surface ship combat system.
delete delete delete delete delete delete delete In the threat assessment method for anti-aircraft targets in the surface ship combat system,
Calculating Time To Goal (TTG) values for each detected target;
Storing target information on a plurality of targets and TTG values for the calculated targets in a target database;
Tracking and detecting a target through a plurality of sensor cameras, and generating identification information for the currently tracked targets using target information stored in the database for the tracked and detected targets; and
Comprising the step of calculating a threat index for targets using each target information generated and the TTG value stored in the target database,
The target information stored in the target database is anti-aircraft point target information,
Further comprising the step of storing identification information for each of the generated targets in a memory,
Identification information stored in the memory includes armament capability information and armament range information for each target type,
The target type includes at least one of missiles, fighter jets, helicopters, transport aircraft, and civil aircraft,
The threat index is calculated using the equation below,
[Equation]
Threat index = (999 - (TTG * C)) * (armed capability/100) * (armed range)
(Here, the TTG is the time it takes for the target to approach the ship, and is calculated as the distance between the target and the ship divided by the larger of the target's radial speed and the lowest speed, and the radial speed is the target's own ship's speed. It refers to the approaching relative speed, and the minimum speed refers to the preset engagement setting constant.)
In the above equation, the armament capability is set to different values for each target (100 for missiles, 90 for fighters, 80 for helicopters, 10 for transport aircraft, and 1 for civil aircraft),
In the above equation, the armed range value is set to 1 if the ship is located within the maximum range of the target armament, and 0.1 if it is not located. A method of assessing threats to anti-aircraft targets in a surface ship combat system. delete delete delete delete delete delete delete