DE102020201732A1 - Method for minimizing detonation damage on a watercraft - Google Patents

Abstract

The present invention relates to a method for minimizing damage to a watercraft 10, the method having the following steps: a) Providing the watercraft 10 and a database 20, the watercraft 10 having rooms Rn, the database 20 having time information for at least one room Ri tRi, where the time information tRid is the time required to generate a liquid mist in the space Ri to which this time information tRi is assigned, b) recognizing and locating a threat in the form of a flying object 80, c) determining the movement of the flying object 80 , d) determining the collision location between the flight object 80 and the watercraft 10, e) determining the space Ri of the watercraft 10 which is adjacent to the collision location, f) determining the time information tRi for this space Ri from the database 20, g) determining the Point in time to at which the flying object 80 has reached a position at which the remaining flight time for the collision Location of the time information tR corresponds to, h) At time to or at time t0- Δt0 start of the generation of a liquid mist in space Ri, where Δt0 is a predetermined tolerance time interval.

Description

The invention relates to a method in which the generation of a liquid mist is used in order to minimize the effect of a detonation in the watercraft.

It is theoretically known that liquid mist can be used to influence the propagation of a detonation wave and thus minimize damage.

The disadvantage is that when a liquid mist is generated, damage is practically always caused, in particular electronic components are regularly affected. In addition, the extinguishing liquid can of course also have an influence on the ability to swim.

To make matters worse, mainly military ships have the necessary devices to identify approaching threats. However, it is precisely on these ships that the various ship systems are shielded from one another, so that simple integration is difficult.

The object of the invention is to create a method that enables a reduction in detonation damage through the formation of a liquid mist and at the same time minimizes the collateral damage caused by the liquid.

This object is achieved by the method having the features specified in claim 1. Advantageous further developments result from the subclaims, the following description and the drawings.

1. a) Bereitstellen des Wasserfahrzeugs und einer Datenbank, wobei das Wasserfahrzeug Räume R_n aufweist, wobei die Datenbank für wenigstens einen Raum Ri eine Zeitinformation t_Ri enthält, wobei die Zeitinformation t_Ri die Zeit ist, die benötigt wird, in dem Raum R_i, dem diese Zeitinformation t_Ri zugeordnet ist, einen Flüssigkeitsnebel zu erzeugen,
2. b) Erkennen und Orten einer Bedrohung in Form eines Flugobjekts,
3. c) Ermitteln der Bewegung des Flugobjekts,
4. d) Ermitteln des Kollisionsorts zwischen dem Flugobjekt und dem Wasserfahrzeug,
5. e) Ermitteln des Raumes Ri des Wasserfahrzeugs, der an den Kollisionsort angrenzend ist,
6. f) Ermitteln der Zeitinformation t_Ri für diesen Raum Ri aus der Datenbank,
7. g) Ermitteln des Zeitpunktes to, zu dem das Flugobjekt eine Position erreicht hat, an welcher die Restflugzeit zum Kollisionsort der Zeitinformation t_Ri entspricht,
8. h) Zum Zeitpunkt to oder zum Zeitpunkt t₀ - Δt₀ Beginn der Erzeugung eines Flüssigkeitsnebels im Raum R_i, wobei Δt₀ ein vorgegebenes Toleranzzeitintervall ist.

The method according to the invention for minimizing damage on a watercraft has the following steps:

1. a) Providing the watercraft and a database, the watercraft having rooms R _n , the database for at least one room Ri contains time information t _Ri , where the time information t _{Ri is} the time required to generate a liquid mist in the space R _i to which this time information t _{Ri is assigned,}
2. b) Detecting and locating a threat in the form of a flying object,
3. c) determining the movement of the flying object,
4. d) Determining the collision location between the flying object and the watercraft,
5. e) Determining the room Ri the watercraft that is adjacent to the collision site,
6. f) Determining the time information t _Ri for this space Ri from the database,
7. g) determining the time to at which the flight object has reached a position at which the remaining flight time to the collision location corresponds to the time information t _Ri ,
8. h) At time to or at time t ₀ - Δt _0, the generation of a liquid _{mist begins in space R i} , where Δt _{0 is} a predetermined tolerance time interval.

Watercraft within the meaning of the invention are in particular military watercraft, in particular military surface vehicles, for example and preferably, cruisers, destroyers, frigates, corvettes, task force providers, minesweepers, minehunters, aircraft carriers, helicopter carriers, amphibious warships, landing ships, battleships.

The watercraft has n spaces R _n , where n is a natural number. A certain room is created by numbering the rooms. For example, has a watercraft 10 Spaces, so there are spaces R ₁ , R ₂ , R ₃ , R ₄ , R ₅ , R ₆ , R ₇ , R ₈ , R ₉ and R ₁₀ . R _i is the i-th room of the watercraft, where i is a natural number between 1 and n.

To the rooms R _1, R _2, ... R _n-1, R _n the time information in the database each t _R1, t _R2, ... _{Rn t-1,} t _Rn stored. The time t _Ri for space Ri results from the time it takes to generate a liquid mist in the room Ri is needed. This time depends, for example, on the size of the room and, for example, the number of sprinkler systems that can be used to generate the liquid mist.

This does not have to go to every room Ri time information t _{Ri must be} stored in the watercraft. For example, rooms can be excluded that are inside or permanently below the waterline if a missile impact is considered unrealistic here. Likewise, rooms could be excluded in which no liquid mist can and should not be generated, for example IT rooms that have an automatic extinguishing device using CO ₂ . At least the rooms are therefore advantageous in the database Ri detected, which have a device for generating a liquid mist. At least the rooms are particularly preferred Ri detects which are arranged on the outside of the watercraft in the surface area.

Objects in flight cover all possible threats from warheads, grenades, cruise missiles, missiles to airplanes. these can pure ballistic flying, active flying or ballistic flying with control options, whereby the control options can be active or passive.

Another advantage of the invention is that this additional protection cannot be seen by an opponent. Practically all larger military watercraft have both a radar system and a sprinkler system, which is suitable for generating a liquid mist. However, these are usually integrated into different and strictly separate ship systems. While the Combat Management System is connected to the radar, an integrated platform management system controls the fire fighting equipment. Such a military watercraft can easily be equipped with a control system for carrying out the method according to the invention, which, however, in contrast to thick armor, cannot be seen by an enemy from the outside, so that the weakened detonation effect of a warhead cannot be foreseen by the enemy in the field.

Steps b) and c) are preferably carried out by means of radar, optical sensors and / or acoustic sensors. Steps b) and c) are particularly preferably carried out by means of radar.

The determination of the movement in step c) can take place either on the basis of two measurements spaced apart in time and the measured position difference. However, it can also take place directly, for example by means of frequency shifting (Doppler effect).

All process steps are preferably carried out on a watercraft. However, it is also conceivable that steps b) and c) are carried out, in particular in a convoy, by a second watercraft, for example and in particular an escort ship, for example a destroyer, and the data determined are then transferred to the first watercraft, for example a task force provider who do not have or at least not a comparable radar system themselves. If necessary, step e) can also be carried out on the second watercraft.

It can be advantageous that in step h) not only in space Ri a liquid mist is generated, but that, in the event of an acute threat, this may be carried out in neighboring rooms, for example in rooms R _i-1 and R _{i + 1} . For this purpose, steps f) to h) are preferably carried out _{for each room R i-1} , R _i and R _{i + 1.} This results in a point in time t ₀ , _Ri-1 , for the room for the room R _i-1 Ri a time t _{0, Ri} and for the space R _{i + 1} a time t _{0, Ri + 1} .

Provision can also advantageously be made for all rooms to be selected which are located within a ship section or a lockable area. This ensures that the area over which a pressure wave or a fire can spread is already filled with liquid mist and the damage is reduced over the entire area.

In a further embodiment of the invention, steps c) to e) are repeated continuously in order to detect changes in movement. In this way, both course corrections by the flight object and changes in the movement of the watercraft can be taken into account. This is preferred since even today simple artillery projectiles, especially in the extended range version, have a certain degree of maneuverability. And with anti-ship missiles, strong maneuvers to overcome hardkill defense measures are common today, especially for the target approach. The change in step e) results in a different room Ri identified, steps f) and g) are also carried out again.

Likewise, through continuous observation of the flight object, it can also be determined that it could be eliminated, for example by a hard kill, and that there is no longer any further threat.

In a further embodiment of the invention the flying object is in the watercraft at time t _A the generation of the liquid mist for a period .DELTA.t _A continued after impact. During the time from t _Ein to t _Ein + Δt _Ein , fire monitoring is carried out in the room Ri carried out to determine whether the impact caused a fire in the room Ri was triggered. In the event that a fire has been detected, the generation of the liquid mist is continued _{beyond the point in time t Ein + Δt Ein.} In the event that no fire has been detected, the generation of the liquid mist, at time t + .DELTA.t _A set _A.

In a further embodiment of the invention, steps b) and c) are carried out by a combat management system. The combat management system on a military watercraft includes the controls, for example, of the sensors for detecting the threat situation, for example the radar, as well as the control of the effectors, for example guns, missiles or close-range defense systems. The Combat Management System is therefore specially shielded for security reasons in order to prevent any unwanted external intervention. Steps d) to h) are carried out by a control system. The control system can in particular be designed as an independent system in order to only deal with this part of the method according to the invention to be carried out outside of the other ship systems, which enables optimal integration into the security architecture and optimal retrofitting. The combat management system and the control system are only connected via a unidirectional connection for the transfer of data from the combat management system to the control system. Unidirectional connections are established, for example, via so-called data diodes and ensure that, for example, no malicious software can be transferred from the control system to the Combat Management System and thus the security of the system is fully guaranteed.

In a further embodiment of the invention, a liquid mist is generated in step h) by a control system in that the control system transmits a fire message to the fire fighting system. As a result, the fire-fighting system initiates fire-fighting measures that lead to the generation of the liquid mist. For example and preferred is the sprinkler system in the room Ri activated. The advantage of this system is that no new systems have to be installed on the watercraft except for a control system. The control system uses the existing ship systems. This saves space, weight and integration complexity and enables optimal retrofitting.

In a further embodiment of the invention, a non-conductive fluid, for example CF ₃ CF ₂ C (O) CF (CF ₃ ) ₂ , is used to generate the liquid mist. For example and preferably, the water vehicle on a supply of nonconductive fluid to a generation of the liquid mist from at least to to t to enable _A + .DELTA.t _A. If the non-conductive fluid is used up, further fire fighting can also be carried out with fresh water or sea water. Damage to electronics, for example, is then accepted because an arbitrarily large supply of non-conductive fluid does not make sense and fire fighting has priority over damage caused by extinguishing water.

In a further embodiment of the invention, course data and speed data of the watercraft are used to determine the collision location in step d). An exact prediction of the future whereabouts of the watercraft is possible due to the adjacent course. While this information for the flight object can only be predicted from the past, this additional information is available to the watercraft for its own future, which increases the probability of prediction.

In a further aspect, the invention relates to a military watercraft which is designed to carry out the method according to the invention.

• 1 Wasserfahrzeug
• 2 erstes Bedrohungsszenario
• 3 zweites Bedrohungsszenario

The method according to the invention is explained in more detail below using an exemplary embodiment shown in the drawings.

• 1 Watercraft
• 2 first threat scenario
• 3 second threat scenario

In 1 is a watercraft 10 shown very schematically. The watercraft 10 points a radar 40 on which a Combat Management System 50 is controlled. Via a data diode 60 is the Combat Management System 50 with a control system 30th connected. About the data diode 60 transmits the Combat Management System 50 Information about approaching objects in flight 80 to the control system 30th . The control system 30th has a database in which for all rooms Ri of the watercraft 10 the time information t _{Ri is} stored. Identifies the control system 30th a space R _i , which is caused by an approaching flying object 80 threatened and should be protected by a liquid mist, the control system hands over 30th a fake fire alarm for the room Ri to the integrated platform management system 70 at time to. The integrated platform management system 70 has control of a fire-fighting system, which also includes the fire-fighting equipment Bi in the rooms Ri belong. The integrated platform management system is activated by the fictitious fire alarm 70 the fire fighting agent Bi in the affected room Ri . This is in the room Ri a liquid mist is formed at precisely the moment t _Ein , in which the flying object 80 in the room Ri strikes and the detonation effect is minimized.

2 shows a first scenario with a purely ballistic flying object 80 . At a point in time t _D , the flying object becomes 80 detected, direction and speed determined. This time t _D is in 2a shown. As the watercraft 10 but is not at rest, it moves on, as in the course of 2a about 2 B to 2c is recognizable. Because the control system 20th the information on this intrinsic movement from the integrated platform management system 70 receives, the control system can already recognize room R ₅ as the point of impact _{at time t D.} To the in 2 B The time to shown is the remaining flight time of the flight object 80 equal to the time it takes _{to generate a liquid mist in space R 5} , which is why the control system initiates this at this point in time. the 2c then shows the impact at the time t _A at which the liquid mist in the room R is completely formed. ₅

In 3 a slightly different picture emerges. Analogous to 2a is at time t _D in 3 the flying object 80 detected, direction and speed determined and the impact for space R ₅ predicted. At this point, however, the flying object changes 80 once slightly his direction of flight, what by the radar 30th is detected between t _D and to. This changes the impact forecast for space R ₃ and at time to, which in 3b is shown, the liquid _mist generated in space R 3. The impact of the flying object 80 in the space R ₃ at the time t _A is in 3c to see.

Another change in the flight path of the flying object 80 to cover with, which is not predictable, a liquid mist can be generated _{in the rooms R 2} , R ₃ and R _{4 at time to.} This increases the damage caused by the liquid mist, but it does increase the possible deviation of the flying object 80 from the predicted course still leads to a dampening of the detonation, even if an impact is made into space R ₂ or R ₄ . Rooms that are further away are too unlikely to pose a threat, so that no liquid mist is generated here.

List of reference symbols

10

Watercraft

20th

Database

30th

Control system

40

radar

50

Combat Management Systems

60

Data diode

70

Integrated platform management system

80

Flying object

Ri

Space i (i is a natural number)

Bi

Fire extinguishing agent i (i is a natural number)

Claims (8)

A method for minimizing damage on a watercraft (10), the method comprising the following steps: a) Providing the watercraft (10) and a database (20), the watercraft (10) _{having rooms R n} , the database (20) _{contains time information t Ri} for at least one space Ri, the time information t _{Ri being} the time required to generate a liquid mist in the space R _i to which this time information t _{Ri is} assigned, b) detection and location of a threat in the form of a flying object (80), c) determining the movement of the flying object (80), d) determining the collision location between the flying object (80) and the watercraft (10), e) determining the space Ri of the watercraft (10), the is adjacent to the collision location, f) determining the time information t _Ri for this space Ri from the database (20), g) determining the time to at which the flying object (80) has reached a position at which the remaining flight time to the collision ion location corresponds to the time information t _Ri , h) at time to or at time t ₀ - Δt ₀ start of the generation of a liquid mist in space R _i , where Δt _{0 is} a predetermined tolerance time interval. Procedure according to Claim 1 , characterized in that steps c) to e) are repeated continuously in order to detect changes in movement, a different room Ri being identified by changing in step e), steps f) and g) being carried out. Method according to one of the preceding claims, characterized in that after the flying object (80) hits the watercraft (10) at time t _Ein, the generation of the liquid mist is _{continued for a period of time Δt Ein} , during the time from t _Ein to t _a + .DELTA.t _a a fire monitoring in the room Ri is carried out and in the case of a detected fire, the generation of the liquid mist over the time t _a + .DELTA.t continues _a, wherein in case none of the detected fire, the generation of the vaporized liquid at time t set _a + .DELTA.t _a will. Method according to one of the preceding claims, characterized in that steps b) and c) are carried out by a combat management system (50), steps d) to h) being carried out by a control system, the combat management system (50 ) and the control system (30) are only connected via a unidirectional connection for the transmission of data from the Combat Management System (50) to the control system (30). Method according to one of the preceding claims, characterized in that the generation of a liquid mist in step h) by a control system (30) takes place in that the control system (30) transmits a fire message to the fire-fighting system and thereby the fire-fighting system initiates fire-fighting measures which are necessary to generate the Liquid mist. Method according to one of the preceding claims, characterized in that a non-conductive fluid is used to generate the liquid mist. Method according to one of the preceding claims, characterized in that course data and speed data of the watercraft (10) are used to determine the collision location in step d). Military watercraft (10) for performing the method according to one of the preceding claims.

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