KR102279590B1 - Threat assessment apparatus using approach angle, warship combat system having the same, and threat assessment method using approach angle - Google Patents

Abstract

The present invention relates to a threat assessment device provided on a ship, comprising: a position measuring unit capable of measuring direction information of a target; a calculator capable of calculating an approach angle of the target by using the direction information of the target; and a threat assessment unit capable of quantifying a threat level of the target according to the angle of entry. It is possible to quantitatively calculate the threat level of the target.

Description

A threat assessment device using an approach angle, a warship combat system having the same, and a threat assessment method using the approach angle

The present invention relates to a threat assessment device using an angle of entry, a warship combat system having the same, and a threat assessment method using the angle of entry, and more particularly, to a threat using an angle of entry capable of quantitatively calculating the threat level of a target. It relates to an evaluation device, a warship combat system having the same, and a threat evaluation method using an angle of arrival.

In general, in an environment where multiple weapons are operated against multiple targets, it is necessary to quickly establish and execute a shooting plan. In order to establish a shooting plan, it is essential to determine the threat level of the targets and to give priority to the targets with high threat level.

At this time, the ship is threatened not only from surface targets and underwater targets, but also from targets. Therefore, in the case of a ship, it is important to identify a target that is a threat to the ship from among many targets, and to respond preferentially to a target with a high level of threat among the determined targets.

However, there is a problem that ships are difficult to cope with anti-aircraft targets such as fighters and missiles. In other words, since anti-aircraft targets have excellent maneuverability, it is difficult to establish a threat ranking. Therefore, there is a need for a technology that can quantitatively calculate the threat level of an anti-aircraft target.

US 10-2012466 B

The present invention provides a threat assessment device using an angle of entry capable of quantitatively calculating the threat of targets, a warship combat system having the same, and a threat assessment method using the angle of entry.

The present invention provides a threat assessment device using an approach angle capable of effectively coping with targets, a warship combat system having the same, and a threat assessment method using the entry angle.

The present invention provides a threat assessment device provided on a ship, comprising: a position measuring unit capable of measuring direction information of a target; a calculator capable of calculating an approach angle of the target by using the direction information of the target; and a threat assessment unit capable of quantifying the threat level of the target according to the angle of entry.

The present invention provides a threat assessment device provided in a ship, comprising: a location measuring unit capable of measuring distance information between a target and the ship, speed information of the target, and direction information of the target; a time predictor capable of predicting an arrival time required for the target to reach the ship by using the distance information and the speed information; a calculator capable of calculating an approach angle of the target by using the direction information of the target; and a threat evaluation unit capable of quantifying the threat level of the target according to the arrival time and the angle of entry.

The time predictor may predict the arrival time using Equation (1) below.

Equation (1): T = D / V

(Where T is the arrival time, D is the distance value between the target and the ship, and V is the speed value of the target)

The threat assessment unit may include: a first calculator capable of calculating a first threat index indicating a degree of threat according to the arrival time; a second calculator capable of calculating a second threat index representing the degree of threat according to the angle of entry; and a summator capable of determining a final threat index by summing the first threat index and the second threat index.

The first calculator may calculate the first threat index by using Equation (2) below.

Equation (2): 1st threat index = 999 - (T × C) + W

(where T is the arrival time, C is the engagement constant, and W is the weight)

The second calculator may calculate the second threat index by using Equation (3) below.

Equation (3): The second threat index is = (999 - (T × C) + W) × (100 - angle of entry)%

(where T is the arrival time, C is the engagement constant, and W is the weight)

The calculator may be configured to calculate an angle between a line of sight indicating a straight distance between the target and the ship and a course line indicating the course of the target as the entry angle.

The position measuring unit includes a radar capable of simultaneously tracking the positions of a plurality of targets.

The present invention relates to a warship combat system provided in a ship, comprising: a launch device capable of firing a projectile to a target; a threat assessment device that can quantify and evaluate the threat level of targets; and a shooting plan establishment device capable of setting priorities of targets according to the evaluation result of the threat evaluation device and controlling the operation of the launch device to fire a projectile from a target having a higher priority.

The present invention provides a process for detecting targets; measuring distance information between each of the detected targets and the ship, speed information of each of the targets, and direction information of each of the targets; predicting an arrival time required for each of the targets to reach the ship by using the distance information and the speed information, and calculating an approach angle of each of the targets by using the direction information of each of the targets; and quantifying and evaluating the threat level of each of the targets according to the arrival time and the approach angle.

The process of calculating the approach angles of the targets includes calculating an angle between the aiming line indicating the linear distance between the target and the ship and the course line indicating the course of the target.

The process of quantifying the threat level of the targets may include calculating a first threat index indicating the threat level according to the arrival time; calculating a second threat index representing the threat level according to the angle of entry; and a process of determining a final threat index by adding up the first threat index and the second threat index.

The process of summing the first threat index and the second threat index includes the process of calculating the final threat index using Equation (4) below.

Equation (4): (999 - (T × C) + W) + ((999 - (T × C) + W) × (100 - angle of entry)%)

(where T is the arrival time, C is the engagement constant, and W is the weight)

According to embodiments of the present invention, it is possible to quantitatively calculate the threat of the targets. Accordingly, the ship can respond to the targets in the order of the highest threat. Therefore, the survivability of the ship can be improved because the ship can effectively counteract the targets.

1 is a view showing the structure of a ship according to an embodiment of the present invention.
2 is a diagram illustrating a process of calculating an approach angle of a target based on the position of a ship according to an embodiment of the present invention.
3 is a flowchart illustrating a threat assessment method according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, and only these embodiments allow the disclosure of the present invention to be complete, and the scope of the invention to those of ordinary skill in the art completely It is provided to inform you. In order to explain the invention in detail, the drawings may be exaggerated, and like numerals refer to like elements in the drawings.

1 is a view showing the structure of a ship according to an embodiment of the present invention, Figure 2 is a view showing a process of calculating the approach angle of the target based on the position of the ship according to an embodiment of the present invention. Hereinafter, a trap according to an embodiment of the present invention will be described.

A ship according to an embodiment of the present invention may be a battleship capable of combating targets. Referring to FIG. 1 , the ship 1000 includes a ship body 200 , and a ship combat system 100 .

In this case, the target may be at least one of an anti-aircraft target, a water target, and an underwater target. The anti-air target is a target that appears in the air, and may be an enemy fighter or missile, and the surface target may be an enemy warship.

The trap body 200 is formed in a structure that can float on the water. The ship body 200 may be moved to a desired position in the water using a propeller or the like.

The naval combat system 100 may be a next-generation naval combat system that communicates so that equipment or devices provided in the naval vessel 1000 can send and receive messages indicating information by wire or wirelessly. The warship combat system 100 includes a launch device 110 , a threat assessment device 120 , and a firing plan establishment device 130 .

The launch device 110 is installed in the ship body 200 . The launch device 110 may be a gun or missile launcher. Accordingly, the launch device 110 may launch a projectile such as a shell or missile as a target.

In addition, a plurality of launch devices 110 may be provided. Accordingly, when a plurality of targets appear, the launchers 110 may fire projectiles to different aerial targets. Accordingly, it is possible to respond to a plurality of process targets.

The shooting plan establishment device 130 may receive an evaluation result obtained by evaluating the threat level of the targets by the threat evaluation device 120 . Accordingly, the shooting plan establishment device 130 may set the priority of the targets according to the evaluation result of the threat evaluation device 120 . The firing plan establishing device 130 may control the operation of the firing device 110 so as to fire a projectile from a target having a high corresponding priority.

The threat assessment device is provided on the ship and can be evaluated by quantifying the threat level of the targets. For example, the threat assessment apparatus may include a position measuring unit capable of measuring the direction information of the target, a calculating unit capable of calculating the entry angle of the target using the direction information of the target, and the target according to the calculated entrance angle. It includes a threat assessment unit that can quantify the threat level. Accordingly, it is possible to determine the degree of danger of the target according to the approach angle of the target.

Alternatively, as shown in FIG. 1 , the threat evaluation device 120 may include a location measurement unit 121 , a time prediction unit 122 , a calculation unit 123 , and a threat evaluation unit 124 . Therefore, it is also possible to determine the risk of the target by analyzing the arrival time and the approach angle of the target together. In this case, various combinations are possible between the embodiments.

The position measurement unit 121 may be installed on the ship body 200 to detect an external target. The position measuring unit 121 may measure distance information between the detected target and the ship body 200, speed information of the target, and direction information of the target.

For example, the position measuring unit 121 may be a radar capable of simultaneously tracking the positions of a plurality of targets. Accordingly, it is possible to detect the targets using the position measuring unit 121 and measure the position information (distance, speed, direction, etc.) of the targets.

In addition, it may be installed to detect different areas on the ship body 200 by providing a plurality of position measuring units (121). Accordingly, it is possible to detect the targets in a wider area and measure the location information of the targets.

In this case, the direction information of the target may be calculated based on the position information of the target currently measured by the position measuring unit 121 and the position information of the target previously measured. Accordingly, the direction in which the target moves can also be predicted by the position measuring unit 121 .

The time prediction unit 122 is connected to send and receive a signal to and from the position measurement unit 121 . Accordingly, the time prediction unit 122 may receive distance information between the target and the ship body 200 measured by the position measurement unit 121 , and speed information of the target. Accordingly, the time prediction unit 122 may predict the arrival time required for the target to reach the ship by using the received distance information and speed information. The time predictor 122 may predict the arrival time using Equation (1) below.

Equation (1): T = D / V

Here, T (Time to goal) is the arrival time, D is the distance value between the target and the trap 1000, V is the speed value of the target. Therefore, when the position measuring unit 121 detects the target using Equation (1), it is possible to estimate the time it takes for the target to reach the ship 1000 .

In this case, a larger value among the target speed value and the preset speed value may be selected as the V value. The set speed value may be a value greater than 0. Therefore, when the target speed value is 0 because the target speed is lower than the speed range that the position measuring unit 121 can measure, the set speed value may be used as the V value instead of 0. Accordingly, the arrival time can be stably calculated by preventing the V value from being 0 when calculating the arrival time.

Also, the time prediction unit 122 may simultaneously predict arrival times of different targets. Accordingly, even if the targets appear at the same time, the time prediction unit 122 may predict the arrival time of each of the targets.

The calculator 123 is connected to send and receive a signal to and from the position measurer 121 . Accordingly, the calculation unit 123 may receive direction information of the target measured by the position measurement unit 121 . Accordingly, the calculator 123 may calculate the approach angle of the target by using the received direction information of the target.

For example, the calculation unit 123 virtually draws a line of sight indicating the linear distance between the target and the ship, and a course line (or movement) indicating the course of the target (or the direction in which the target will move) through the direction information of the target. direction line) can be drawn virtually. Accordingly, the calculator 123 may calculate the magnitude of the approach angle, which is the angle between the virtual aim line and the course line.

Also, the calculator 123 may simultaneously calculate the approach angles of different targets. Accordingly, even if the targets appear at the same time, the calculator 123 may calculate the approach angle of each of the targets.

The threat assessment unit 124 is connected to send and receive signals to and from the time prediction unit 122 and the calculation unit 123 . Accordingly, the threat evaluation unit 124 may quantify the threat level of the target according to the received arrival time and entry angle. The threat assessment unit 124 includes a first operator 124a, a second operator 124b, and a summer 124c.

The first operator 124a may receive arrival time information predicted by the time prediction unit 122 . Accordingly, the first calculator 124a may calculate the first threat index indicating the threat level according to the arrival time. The first operator 124a may calculate the first threat index by using Equation (2) below.

Equation (2): 1st threat index = 999 - (T × C) + W

Here, T is the arrival time, C is the engagement constant, and W is the operator weight applied by the operator's judgment. Therefore, the first threat index is expressed as an index of 0 to 1000 based on the arrival time. That is, when the arrival time is relatively short, the value of the first threat index is relatively large, and when the arrival time is relatively long, the value of the first threat index is relatively small. Accordingly, since it means that the shorter the arrival time, the faster the target arrives at the ship 1000 , the higher the threat indicated by the first threat index can be determined.

The second calculator 124b may receive the entry angle information calculated by the calculator 123 . Accordingly, the second calculator 124b may calculate a second threat index indicating the degree of threat according to the angle of entry. The second operator 124b may calculate the second threat index using the following Equation (3).

Equation (3): The second threat index is = (999 - (T × C) + W) × (100 - angle of entry)%

Here, T is the arrival time, C is the engagement constant, and W is the operator's weight applied by the operator's judgment. Accordingly, the second threat index is expressed as an index of 0 to 1000 based on the angle of entry. That is, when the angle of entry is relatively small, the value of the second threat index is relatively large, and when the angle of entry is relatively large, the value of the second threat index is relatively small. Accordingly, the smaller the target angle of entry, the higher the level of threat indicated by the second threat index can be determined because it means that the moving direction is toward the ship 1000 .

For example, when the angle of entry, which is the angle between the line of sight for the missile target (A) and the course line of the missile target (A), is relatively small as shown in (a) of FIG. 2, the missile target (A) is the ship (1000). ) is more likely to be reached directly. Therefore, when the angle of entry is calculated to be relatively small, the value of the second threat index increases, so that it can be easily confirmed that the target is relatively dangerous.

Or, when the angle of entry, which is the angle between the line of sight and the course of the fighter target () for the fighter target (B), is relatively large, the fighter target (B) is damaged by the ship (1000) as shown in (b) of FIG. more likely to pass Accordingly, when the angle of entry is calculated relatively large, the value of the second threat index decreases, so that it can be easily confirmed that the target is not relatively dangerous.

At this time, when the angle of entry exceeds 100 degrees and is less than or equal to 180 degrees, the moving direction of the target may be a direction away from the ship 1000 . Therefore, if the angle of entry exceeds 100 degrees, the value of the angle of entry may be set to 100 when calculating the second threat index.

The summer 124c is connected to send and receive signals to and from the first operator 124a and the second operator 124b. Accordingly, the summer 124c may determine the final threat index by summing the first threat index calculated by the first operator 124a and the second threat index calculated by the second operator 124b. That is, the final threat index can be calculated by adding the first threat index and the second threat index. Therefore, the final threat index is expressed as an index of 0 to 2000, which is the sum of the first and second threat indexes.

At this time, if the threat index of the target is determined only by the angle of entry, it is difficult to determine the threat when the target moves in a zigzag manner. In other words, since the target's course continues to change, the approach angle continues to change, so the threat index continues to change. Therefore, if the threat index according to the angle of entry is added to the threat index according to the arrival time, the threat level can be correctly determined even if the target approaches in a zigzag manner. Accordingly, in order to prepare for a target approaching in a zigzag manner, a final threat index is determined by adding up the first threat index and the second threat index in the summer 124c.

Meanwhile, the operator of the threat evaluation device 120 may set the weights of the first threat index and the second threat index differently. An operator who determines that the arrival time rather than the entry angle increases the threat of the target may set a relatively large value for the weight when calculating the first threat index, and set a relatively small value for the weight when calculating the second threat index. . An operator who judges that the entry angle increases the threat level of the target than the arrival time can set a relatively small value for the weight when calculating the first threat index, and set a relatively large value for the weight when calculating the second threat index. . Accordingly, the operator can determine the threat level of the targets more accurately by setting different weights according to the battle situation.

In addition, the summer 124c may align the targets in the order of the highest final threat index and form data. The summer 124c may transmit the created data to the shooting planning apparatus 130 . Accordingly, the firing plan establishment device 130 may control the firing device 110 to correspond to the targets in the order above in the data.

As such, the threat assessment device 120 may quantitatively calculate the threat of the targets by analyzing the arrival time and the entry angle of the targets. Accordingly, the ship 1000 may respond to the targets in the order of the highest threat. Accordingly, since the ship 1000 can effectively respond to the targets, the survivability of the ship 1000 can be improved.

3 is a flowchart illustrating a threat assessment method according to an embodiment of the present invention. Hereinafter, a threat assessment method according to an embodiment of the present invention will be described.

The threat assessment method according to an embodiment of the present invention is a method capable of evaluating the threat level of targets based on the location of a ship. Referring to FIG. 3, the threat assessment method includes a process of detecting targets (S110), a process of measuring distance information between each of the detected targets and a ship, speed information of each of the targets, and direction information of each of the targets ( S120), the process of predicting the arrival time required for each of the targets to reach the ship by using the distance information and the speed information, and calculating the approach angle of each of the targets using the direction information of each of the targets (S130), and It includes the process of quantifying and evaluating the threat level of each target according to the arrival time and the approach angle (S140).

In this case, the target may be at least one of an anti-aircraft target, a water target, and an underwater target. The anti-air target is a target that appears in the air, and may be an enemy fighter or missile, and the surface target may be an enemy warship. The threat assessment method may be performed in the ship 1000 according to an embodiment of the present invention as shown in FIG. 1 .

Targets are detected (S110). That is, by using the position measuring unit 121 provided in the ship 1000, it is possible to detect whether there are targets around the ship (1000).

Next, distance information between each of the detected targets and the ship, speed information of each of the targets, and direction information of each of the targets are measured (S120). That is, when targets are detected by the location measurement unit 121 , location information such as distance, speed, and movement direction of the targets may be collected by the location measurement unit 121 .

For example, the position measuring unit 121 may be a radar, and may measure distance information and speed information by receiving signals reflected from targets among externally transmitted signals. The direction information of the target may be calculated from the position of the target currently measured by the position measuring unit 121 and the position of the target measured previously.

Next, the arrival time required for each of the targets to reach the ship is predicted using the distance information and the speed information, and the approach angle of each of the targets is calculated using the direction information of each of the targets ( S130 ). That is, the arrival time and the approach angle of the targets may be calculated using the result measured by the position measuring unit 121 .

In order to predict the arrival time of the target, the distance information between the target and the ship body 200 measured by the position measuring unit 121 and the speed information of the target may be transmitted. Using the received distance information and speed information, it is possible to predict the arrival time required for the target to reach the ship. Accordingly, when the position measurement unit 121 detects the target, it is possible to estimate the time it takes for the target to reach the ship 1000 . In this case, arrival times of different targets may be simultaneously predicted.

In order to calculate the approach angle of the target, the angle between the line of sight indicating the straight distance between the target and the ship and the course line indicating the course of the target may be calculated. For example, a line of sight representing a straight line distance between a target and a ship is virtually drawn, and a course line (or line of movement) representing the course of the target (or the direction in which the target will go) is virtually drawn through the target direction information. After drawing, the magnitude of the angle of entry, which is the angle between the line of sight and the line of course, can be calculated. In this case, it is also possible to simultaneously calculate the angles of entry of different targets.

Then, the threat level of each target is quantified and evaluated according to the arrival time and the approach angle (S140). Therefore, it is possible to easily check the threat level of the targets through the numerical threat level.

In order to quantify the threat level of the targets according to the arrival time, a first threat index indicating the threat level according to the arrival time may be calculated. For example, the first threat index may be a value obtained by subtracting the arrival time from 999. When the arrival time is relatively short, the value of the first threat index is relatively large, and when the arrival time is relatively long, the value of the first threat index is relatively small. Since it means that the shorter the arrival time of the target, the faster it arrives at the ship 1000 , so the threat level indicated by the first threat index may be determined to be high. In this case, in order to reflect the battle situation in the first threat index, when calculating the first threat index, the engagement constant or operator weight applied by operator judgment may be reflected.

In order to quantify the threat level of the targets according to the angle of entry, a second threat index indicating the degree of threat according to the angle of entry may be calculated. For example, the second threat index may be a value multiplied by a percentage value obtained by subtracting the entry angle from 100 after the arrival time is subtracted from 999. The smaller the target angle of entry, the higher the level of threat indicated by the second threat index can be determined because it means that the moving direction is toward the ship 1000 . In this case, in order to reflect the battle situation in the second threat index, when calculating the second threat index, the engagement constant or operator weight applied by operator judgment may be reflected.

In addition, the final threat index may be determined by adding the first threat index and the second threat index. In order to add up the first threat index and the second threat index, the following equation (4) may be used.

Equation (4): (999 - (T × C) + W1) + ((999 - (T × C) + W2) × (100 - angle of entry)%)

Here, T is the arrival time, C is the engagement constant, and W1 and W2 are operator weights applied by the operator's judgment. The operator can set W1, which is the first threat index, and W2, which is the weight of the second threat index, differently. Therefore, the final threat index can be calculated by adding the first threat index and the second threat index. Accordingly, the final threat index is expressed as an index of 0 to 2000 in which the first threat index and the second threat index are combined.

Then, the detected targets can be sorted and dataized in the order of highest final threat index. The created data can be used to establish a firing plan for the targets. Accordingly, it is possible to control the launcher 110 to correspond to the targets in the order above in the data.

In this way, it is possible to quantitatively calculate the threat of the targets by analyzing the arrival time and angle of entry of the targets. Accordingly, the ship 1000 may respond to the targets in the order of the highest threat. Accordingly, since the ship 1000 can effectively respond to the targets, the survivability of the ship 1000 can be improved.

As such, although specific embodiments have been described in the detailed description of the present invention, various modifications are possible without departing from the scope of the present invention, and various combinations between the embodiments are possible. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims to be described below as well as the claims and equivalents.

100: warship combat system 110: launch device
120: threat assessment device 121: location measurement unit
122: time prediction unit 123: calculation unit
124: threat assessment unit 130: fire planning device
200: trap body 1000: trap

Claims (13)

delete As a threat assessment device provided on a ship,
a position measuring unit capable of measuring distance information between the target and the ship, speed information of the target, and direction information of the target;
a time predictor capable of predicting an arrival time required for the target to reach the ship by using the distance information and the speed information;
a calculator capable of calculating an approach angle of the target by using the direction information of the target; and
A threat assessment unit capable of quantifying the threat level of the target according to the arrival time and the angle of entry;
The threat assessment unit,
a first calculator capable of calculating a first threat index indicating the degree of threat according to the arrival time;
a second calculator capable of calculating a second threat index representing the degree of threat according to the angle of entry; and
and a totalizer capable of determining a final threat index by summing the first threat index and the second threat index. 3. The method according to claim 2,
The time prediction unit is a threat assessment device capable of predicting the arrival time using the following equation (1).
Equation (1): T = D / V
(Where T is the arrival time, D is the distance value between the target and the ship, and V is the speed value of the target) delete 3. The method according to claim 2,
The first calculator is a threat assessment device capable of calculating the first threat index by using the following equation (2).
Equation (2): 1st threat index = 999 - (T × C) + W
(where T is the arrival time, C is the engagement constant, and W is the weight) 3. The method according to claim 2,
The second calculator is a threat assessment device capable of calculating the second threat index by using the following equation (3).
Equation (3): The second threat index is = (999 - (T × C) + W) × (100 - angle of entry)%
(where T is the arrival time, C is the engagement constant, and W is the weight) 7. The method of any one of claims 2, 3, 5, and 6,
The calculation unit,
A threat assessment device capable of calculating an angle between a line of sight indicating a straight-line distance between the target and the ship and a course line indicating the course of the target as the angle of entry. 7. The method of any one of claims 2, 3, 5, and 6,
The position measuring unit,
A threat assessment device including a radar capable of tracking the location of a plurality of targets at the same time. As a ship combat system provided on a ship,
a launcher capable of firing a projectile at a target;
The threat assessment device of any one of claims 2, 3, 5, and 6 that can numerically evaluate the threat level of the targets; and
and a firing plan establishment device capable of setting priorities of targets according to the evaluation result of the threat assessment device and controlling the operation of the launch device to fire a projectile from a target having a higher priority. the process of detecting targets;
measuring distance information between each of the detected targets and the ship, speed information of each of the targets, and direction information of each of the targets;
predicting an arrival time required for each of the targets to reach the ship by using the distance information and the speed information, and calculating an approach angle of each of the targets by using the direction information of each of the targets; and
The process of quantifying and evaluating the threat level of each of the targets according to the arrival time and the approach angle;
The process of quantifying the threat level of the targets is
The process of calculating a first threat index indicating the degree of threat according to the arrival time;
The process of calculating a second threat index indicating the degree of threat according to the angle of entry; and
and determining a final threat index by adding up the first threat index and the second threat index. 11. The method of claim 10,
The process of calculating the angle of entry of the targets is
A threat assessment method comprising the step of calculating an angle between a line of sight indicating a straight-line distance between a target and the ship, and a course line indicating the course of the target. delete 11. The method of claim 10,
The process of adding up the first threat index and the second threat index is:
A threat assessment method comprising the process of calculating the final threat index using the following equation (4).
Equation (4): (999 - (T × C) + W) + ((999 - (T × C) + W) × (100 - angle of entry)%)
(where T is the arrival time, C is the engagement constant, and W is the weight)

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