KR102467374B1 - Apparatus and method for controlling fire on surface ship - Google Patents

Abstract

The present invention provides a device for controlling fire on a surface ship and a method thereof. The purpose of the present invention is to provide a device and a method for improving an accuracy rate of fire when firing a gun in a surface ship. According to an embodiment of the present invention, the device for controlling fire on a surface ship includes: a sensor unit measuring own ship information and target information; a predicted hitting position and time calculation unit calculating time and a predicted hitting position in which a bullet arrives at the target based on the kind of the loaded bullets, the position of the target, and the speed of the target; a predicted hitting position error calculating unit calculating a predicted hitting position correction value based on the time of the target information, the predicted hitting position, and bullet arrival time; a closed circuit error predicting unit calculating a compensation value on the error generated while the bullet flies and outputting a new compensation value by applying the calculated compensation value to the predicted hitting position correction value received from the predicted hitting position error calculating unit; and a gun aiming position calculating unit calculating final predicted hitting position and time by using the predicted hitting position, the time, and the new compensation value.

Description

Apparatus and method for controlling fire on a surface ship {APPARATUS AND METHOD FOR CONTROLLING FIRE ON SURFACE SHIP}

The present invention relates to an apparatus and method for controlling fire in a surface ship.

The Close-In Weapon System (CIWS) mounted on a surface ship is the last means of defense against high-speed/high-precision guided missiles launched by the enemy at a friendly ship among the weapons mounted on the ship. Such a close-in defense weapon system calculates the predicted hit position of the target in consideration of the time of flight (TOF) of the shell, and fires the shell to the calculated predicted hit position to defend against the threatening target. carry out

1 is a configuration diagram of a close-in defense weapon system to which an expected hit position error calculation system is applied.

Referring to FIG. 1, the proximity defense weapon system to which the expected hit position error calculation system is applied includes a sensor 100, an expected hit position and time calculation unit 110, a gun aiming position calculation unit 120, and a closed loop error prediction unit 130. ), etc.

The sensor 100 detects a missile launched toward a ship and recognizes it as a target.

The expected hit position and time calculation unit 110 calculates the expected hit position and time when a bullet is fired to hit a target.

The gun aiming position calculation unit 120 determines the aiming position of the gun and then launches it.

The following technologies are applied to increase the shooting accuracy in real time without operator intervention.

The sensor 100 detects the position of a bullet flying toward a target after the gun is fired. If the bullet does not hit the target, calculate the distance difference between the position where the bullet is closest to the target and the target position. This difference value is called "shooting error". The closed-loop error prediction unit 130 recalculates the expected hit position by considering the shooting error value in the existing expected hit position, corrects the gun aiming position in the gun aiming position calculation unit 120, and calculates the final gun aiming position. After deciding, fire the bullet. The closed-loop error prediction unit 130 measures the shooting error without the operator's intervention and corrects the predicted hit position to increase the shooting hit rate.

Since the closed-loop error prediction unit 130 continues to reflect the once-applied shooting error value, even though the target's maneuver is stabilized and the predicted error value is reduced, the shooting accuracy rate is improved because the previous shooting error value is continuously applied. Rather, there was a problem with falling.

The present invention provides an apparatus and method for increasing a shooting accuracy when shooting from a surface ship.

The present invention provides an apparatus and method for increasing a shooting accuracy rate of a surface ship in consideration of an expected hit position error value.

The present invention provides an apparatus and method for correcting an impact position.

Device according to an embodiment of the present invention, the sensor unit for measuring self-hammer information and target information; an expected hit position and time calculation unit for calculating an expected hit position and time at which the bullet will arrive at the target based on the type of loaded bullet, the position and speed of the target; an expected hit position error calculation unit that calculates an expected hit position correction value based on the time of the target information, the expected hit position, and the projectile arrival time; A closed-loop error prediction unit that calculates a compensation value for an error generated while the bullet is in flight, and outputs a new compensation value by reflecting the calculated compensation value with the expected hit position correction value received from the expected hit position error calculation unit. ; and a gun aiming position calculation unit that calculates a final predicted hit position and time using the expected hit position and time, and the new compensation value.

A method according to an embodiment of the present invention may include measuring self-hammer information and target information in a sensor; calculating an expected hit position and time at which the bullet will arrive at the target based on the type of the loaded bullet, the position and speed of the target, in the expected hit position and time calculation unit; calculating an expected hit position correction value based on the time of the target information, the expected hit position, and the projectile arrival time in an expected hit position error calculation unit; calculating a compensation value for an error generated while the bullet is in flight, and outputting a new compensation value by reflecting the calculated compensation value with the expected hit position correction value received from the expected hit position error calculation unit; and calculating a final predicted hit position and time using the expected hit position and time, and the new compensation value.

According to the present invention, it is possible to increase the shooting accuracy rate by controlling the firing of naval guns in consideration of the expected hit position error value according to the target maneuver.

The present invention can quickly correct an erroneously calculated predicted hit position.

According to the present invention, the shooting accuracy rate can be increased in real time without operator intervention.

1 is a configuration diagram of a close-in defense weapon system to which an expected hit position error calculation system is applied.
2 is a block diagram of a device for controlling shooting in a surface ship according to an embodiment of the present invention.
3 is an exemplary diagram showing an expected hit position error according to target maneuver after 10 seconds according to an embodiment of the present invention.
4 is an exemplary diagram showing an expected hit position error occurrence according to the maneuvering of a target after 2 seconds according to an embodiment of the present invention.
5 is a flowchart illustrating a method of controlling shooting in a surface ship according to an embodiment of the present invention.

Hereinafter, various embodiments of the present invention will be described with reference to the accompanying drawings. However, it should be understood that this is not intended to limit the technology described herein to the specific embodiments, and includes various modifications, equivalents, and/or alternatives of the embodiments of the present invention. . In connection with the description of the drawings, like reference numerals may be used for like elements.

In the present invention, expressions such as "has", "can have", "includes", or "may include" indicate the existence of a corresponding feature (eg, numerical value, function, operation, or component such as a part). , which does not preclude the existence of additional features.

In the present invention, expressions such as "A or B", "at least one of A and/and B", or "one or more of A or/and B" may include all possible combinations of the items listed together. . For example, "A or B", "at least one of A and B", or "at least one of A or B" includes (1) at least one A, (2) at least one B, Or (3) may refer to all cases including at least one A and at least one B.

Expressions such as "first", "second", "first", or "second" used in the present invention may modify various elements, regardless of order and/or importance, and may refer to one element as another. It is used to distinguish from components, but does not limit the components. For example, a first user device and a second user device may represent different user devices regardless of order or importance. For example, without departing from the scope of rights described in the present invention, a first element may be termed a second element, and similarly, the second element may also be renamed to the first element.

A component (e.g., a first component) is "(operatively or communicatively) coupled with/to" another component (e.g., a second component); When referred to as "connected to", it should be understood that any of the above-mentioned elements may be directly connected to the above-mentioned other elements or may be connected through another element (eg, a third element). On the other hand, when an element (eg, a first element) is referred to as being “directly connected” or “directly connected” to another element (eg, a second element), a component and other elements It may be understood that there are no other components (eg, a third component) between the elements.

The expression "configured to (or configured)" used in the present invention may be used depending on the situation, for example, "suitable for", "having the capacity to" ", "designed to", "adapted to", "made to", or "capable of" can be used interchangeably. The term "configured (or set) to" may not necessarily mean only "specifically designed to" hardware. Instead, in some contexts, the phrase "device configured to" may mean that the device is "capable of" in conjunction with other devices or components. For example, the phrase "a processor configured (or configured) to perform A, B, and C" may include a dedicated processor (eg, embedded processor) to perform the operation, or by executing one or more software programs stored in a memory device. , may mean a general-purpose processor (eg, CPU or application processor (AP)) capable of performing corresponding operations.

Terms used in the present invention are only used to describe a specific embodiment, and may not be intended to limit the scope of other embodiments. Singular expressions may include plural expressions unless the context clearly dictates otherwise. Terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by a person of ordinary skill in the art described in the present invention. Among the terms used in the present invention, terms defined in a general dictionary may be interpreted as having the same or similar meaning as the meaning in the context of the related art, and unless explicitly defined in the present invention, an ideal or excessively formal meaning not be interpreted as In some cases, even terms defined in the present invention cannot be interpreted to exclude embodiments of the present invention.

The melee defense weapon system may include a defense weapon device for performing defense by a hard-kill method of shooting down a target by detecting and tracking a threatening target. In addition, this close-in defense weapon system 100 guarantees the survivability of the self-ship from threat targets such as small high-speed surface warships (VSV) and supersonic guided missiles as well as enemy anti-ship guided missiles approaching the self-ship, which is the biggest threat to naval vessels. It can be a weapon system for

The predicted hit location is calculated by predicting the location where the bullet travels during the time it takes to reach the target after launch based on the speed and acceleration of the target at the current time. The actual target position at the time the bullet reaches the target and the predicted hit position previously predicted are not 100% identical. The distance difference value between the actual target position and the expected hit position in the same time zone is called "prediction error". The size of the prediction error is determined according to the amount of change in the speed and direction of the target during the time the bullet arrives. The prediction error increases when the maneuver of the target changes suddenly. When the target's maneuvering is stabilized, the prediction error is reduced. In the existing closed-loop error prediction system, the shooting error value applied once is continuously reflected. As a result, although the target's maneuver is stabilized and the predicted error value is reduced, the shooting accuracy rate decreases because the increased shooting error value is continuously applied.

2 is a block diagram of a device for controlling shooting in a surface ship according to an embodiment of the present invention.

The apparatus for controlling shooting from a surface ship according to an embodiment of the present invention includes a sensor 100, an expected hit position and time calculation unit 110, a naval gun aiming position calculation unit 120, a closed loop error prediction unit 130, an expected hit It may be configured to include a position error calculating unit 200 and the like.

The sensor 100 measures self-ship information and target information.

The expected hit position and time calculation unit 110 calculates the position and time at which the bullet will arrive at the target based on the type of the loaded bullet and the position and speed of the target.

The closed-loop error prediction unit 130 inputs a compensation value for an error generated while the bullet is flying.

The gun aiming position calculation unit 120 calculates the turning angle and elevation of the gun with respect to the final predicted hit position and time.

An apparatus for controlling shooting in a surface ship according to an embodiment of the present invention increases the shooting accuracy rate by adding an “expected hit position error calculation unit 200” compared to FIG. 1 as a solution to the above-described problem. The expected hit position error calculation unit 200 calculates the prediction error of the current time after shooting and transfers it to the closed loop error prediction unit 130.

In the existing system, the closed-loop error prediction unit 130 directly inputs error information of an expected hit position by using error distance information between a target and a bullet measured in a previous shooting. Once the shooting begins, this value remains the same until it ends. The expected hit position error calculation unit 200 added in the existing system receives the expected hit position and bullet arrival time from the gun aiming position calculation unit 120, and then calculates the expected hit position at a future point in time by adding the current time and the projectile arrival time. Save to internal storage.

The expected hit position error calculator 200 receives target information from the sensor 100 . The expected hit position error calculation unit 200 searches for expected hit position data at the same point in time as the time of the received target information among the expected hit position data in the internal storage.

The predicted hit position error calculation unit 200 compares the target position and the expected hit position value to calculate an expected hit position correction value in real time.

The predicted hit position error calculator 200 transmits the calculated expected hit position correction value to the closed loop error predictor 130 in real time.

The closed-loop error prediction unit 130 receives the predicted hit position correction value from the existing correction values, calculates a corrected correction value, and transfers the corrected correction value to the gun aiming position calculation unit 120. The gun aiming position calculation unit 120 may calculate gun command information with a smaller error in a shooting situation by directly applying the corrected correction value.

The present invention can increase the shooting hit rate more than the existing system by separately calculating and applying the expected hit position error value according to the target maneuver from the measurement error value calculated in the prior art.

3 is an exemplary diagram showing an expected hit position error according to target maneuver after 10 seconds according to an embodiment of the present invention.

Figure 3 calculates the expected hit position of the target after eg 10 seconds.

For example, it is assumed that the position of the target 301 is (0,0), the bullet arrival time is 10 seconds, and the target moves at a constant speed of 10 m/s. At this time, the expected position of the target after 10 seconds is (100, 0) (303). Unlike FIG. 4, FIG. 3 shows an example in which an error does not occur between the actual target position 301 and the expected hit position 303.

4 is an exemplary diagram showing an expected hit position error occurrence according to the maneuvering of a target after 2 seconds according to an embodiment of the present invention.

For example, it is assumed that the position of the target 401 is (0,0), the bullet arrival time is 10 seconds, and the target evades maneuvers at 20 m/s after 2 seconds. At this time, the expected position of the target after 10 seconds is (100, 0) (407). At this time, FIG. 4 shows an example in which an error between an actual target position 403 and an expected hit position occurs 405 due to target maneuvering.

5 is a flowchart illustrating a method of controlling shooting in a surface ship according to an embodiment of the present invention. In particular, FIG. 5 is a flowchart of the operation of the expected hit position error calculator 200.

The expected hit position error calculation unit 200 is in a standby state in step 501.

In step 503, the expected hit position error calculator 200 determines whether the expected hit position and bullet arrival time have been received from the gun aiming position calculator 120. If the expected hit position and bullet arrival time are not received from the gun aiming position calculator 120, the expected hit position error calculator 200 proceeds to step 501 and is in a standby state.

However, when the expected hit position and bullet arrival time are received from the gun aiming position calculation unit 120, the expected hit position error calculation unit 200 calculates the message received time A seconds and bullet arrival time B seconds in step 505. Save to internal storage. The message reception time A second means the time at which the expected hit position is received, and the gun aiming position calculator 120 receives the firing command at any time to hit the target at any time, so that the expected hit position and bullet arrival Calculate the time and send it.

In step 507, the expected hit position error calculator 200 stores the expected hit position at a future point in time, which is the sum of the current time (the time at which the message is received, A seconds) and the bullet arrival time, in an internal storage.

Meanwhile, the expected hit position error calculator 200 determines whether target information is received from the sensor 100 in step 509 . If target information is not received from the sensor, the expected hit position error calculator 200 proceeds to step 501 and is in a standby state.

However, when target information is received from the sensor, the expected hit position error calculation unit 200 stores the target information in step 511. (eg, time: C seconds)

In step 513, the expected hit position error calculation unit 200 searches for expected hit position data at the same point in time as the time of the received target information among the expected hit position data in the internal storage.

In step 515, the expected hit position error calculation unit 200 determines whether the expected hit position has been found.

If the expected hit position is not found, the expected hit position error calculator 200 returns to step 501 and is in a standby state. However, when the expected hit position is found, the expected hit position error calculator 200 compares the target position and the expected hit position in step 517 to calculate a correction value for the expected hit position.

The predicted hit position error calculator 200 transmits the expected hit position correction value calculated in step 519 to the closed loop error predictor 130 in real time. The closed-loop error prediction unit 130 calculates a corrected correction value by receiving the received expected hit position correction value from the existing correction values. The corrected correction value can be directly applied in the gun aiming position calculation unit 120 to calculate gun command information with a smaller error in a shooting situation.

By separately calculating and applying the expected hit position error value according to the target maneuver from the measurement error value calculated in the prior art, the shooting hit rate can be higher than that of the existing system.

The foregoing may be modified and modified by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments of the present invention are intended to explain rather than limit the technical idea, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed according to the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

Claims (6)

a sensor unit for measuring self-inflicted information and target information;
an expected hit position and time calculation unit for calculating an expected hit position and time at which the bullet will arrive at the target based on the type of loaded bullet, the position and speed of the target;
After the gun is fired, the expected hit position and the bullet arrival time are received from the gun aiming position calculation unit, and a plurality of expected hit positions corresponding to a plurality of future points in time obtained by adding the present time to the bullet arrival time are stored, and the sensor unit receiving the target information from the target position, searching for one expected hit position corresponding to the same point in time as the time of the received target information among the expected hit positions, and comparing the target position with the searched expected hit position to an expected hit position error calculation unit that calculates an expected hit position correction value according to the maneuver of the target in real time;
a closed-loop error prediction unit that calculates a compensation value for an error generated while the bullet is in flight, and calculates a new compensation value by reflecting the predicted hit position correction value to the compensation value after the gun is fired; and
After the gun is shot, the expected hit position and the bullet arrival time are output to the expected hit position error calculation unit, and the expected hit position and time and the new compensation value are used to calculate the final expected hit position and time. A device for controlling fire from a surface ship that includes an aiming position calculation unit.
According to claim 1,
The gun aiming position calculation unit,
A device for controlling fire in a surface ship, characterized in that for calculating the turn angle and elevation of the gun for the final predicted hit position and time.
According to claim 1,
The expected hit position error calculation unit, when the expected hit position corresponding to the same point in time as the time of the received target information is not searched among the expected hit positions, the expected hit position and the expected hit position from the gun aiming position calculator A device for controlling fire in a surface ship, characterized in that it proceeds in a standby state until the bullet arrival time is received.
The process of measuring self-hammered information and target information by the sensor unit;
The process of calculating the expected hit position and time at which the bullet will arrive at the target based on the type of loaded bullet, the position and speed of the target, by the expected hit position and time calculation unit;
The process of calculating the compensation value for the error generated during the flight of the bullet by the closed-loop error measuring unit;
A process in which the expected hit position error calculation unit receives the expected hit position and bullet arrival time from the naval gun aiming position calculation unit after the naval gun is fired;
storing, by the expected hit position error calculation unit, a plurality of expected hit positions corresponding to a plurality of future points in time obtained by adding a current time to the bullet arrival time;
receiving, by the expected hit position error calculator, the target information from the sensor unit;
Searching, by the expected hit position error calculation unit, one predicted hit position corresponding to the same time point as the time of the received target information from among the expected hit positions;
The expected hit position error calculation unit compares the position of the target with the searched expected hit position to calculate an expected hit position correction value according to the maneuver of the target in real time;
Calculating, by the closed-loop error predictor, a new compensation value by reflecting the predicted hit position correction value to the compensation value; and
The method of controlling fire from a surface ship, comprising calculating, by the gun aiming position calculation unit, a final expected hit position and time using the expected hit position and time and the new compensation value.
According to claim 4,
The process of calculating the final predicted hit position and time,
A method of controlling fire from a surface ship comprising the step of calculating the turn angle and elevation of a gun for the final predicted hit position and time.
According to claim 4,
The process of searching for the predicted hit position,
If the expected hit position corresponding to the same point in time as the time of the received target information is not searched among the expected hit positions, until the expected hit position and the bullet arrival time are received from the gun aiming position calculation unit A method of controlling fire from a surface ship further comprising a process of proceeding to a stand-by state.

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