A method, device, equipment and medium for evaluating the task capability of damaged ship equipment

Abstract

The application belongs to the technical field of ship engineering, and specifically discloses a damaged ship equipment task capability evaluation method, device, equipment and medium. The method comprises the following steps: determining damage level probability distribution information of each equipment in each ship subsystem of a damaged ship; determining damage level probability distribution information of a plurality of minimum equipment sets corresponding to each ship subsystem based on the damage level probability distribution information of each equipment in each ship subsystem; performing task capability analysis according to the damage level probability distribution information of each minimum equipment set, and determining the task capability degree and probability information of each ship subsystem; and determining the evaluation result of each task capability index of the damaged ship based on the task capability degree and probability information of each ship subsystem. Through the application, the accuracy and reliability of the evaluation result of the damaged ship equipment task capability can be effectively improved.

Description

Technical Field

[0001] This application belongs to the field of marine engineering technology, and more specifically, relates to a method, apparatus, equipment and medium for assessing the mission capability of damaged ship equipment. Background Technology

[0002] Damaged vessel mission capability refers to the remaining ability of a vessel to perform tasks such as maneuvering and weapon firing after being damaged by attack or other means. It is directly related to the survival decisions and operational effectiveness of a damaged vessel and serves as the direct basis for commanders to decide on subsequent strategies for the use of a damaged vessel.

[0003] Regarding methods for quantitatively assessing the mission capability of damaged ship equipment, most existing technologies focus on damage assessment of armored vehicles and ground-based electronic equipment. These systems typically have limited parallel redundancy in their functional composition, resulting in damage level assessments that closely resemble mission capability assessments. However, for ship equipment, due to its long-term operation at sea, parallel redundancy is often employed in the ship's functional design for certain critical systems to enhance mission performance. Even if some equipment is damaged and loses functionality, the ship and its systems still retain a certain level of mission capability. Therefore, continuing to use the aforementioned existing damage assessment methods will inevitably lead to low accuracy in assessing the mission capability of damaged ship equipment.

[0004] Therefore, how to effectively assess the mission capability of damaged ship equipment has become a pressing technical problem for the industry. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this application is to achieve an effective assessment of the mission capability of damaged ships, and to solve the problem of low accuracy in the assessment of the mission capability of traditional damaged ship equipment.

[0006] To achieve the above objectives, in a first aspect, this application provides a method for assessing the mission capability of damaged ship equipment, comprising:

[0007] Determine the probability distribution of damage levels for each piece of equipment in each subsystem of the damaged vessel;

[0008] Based on the damage level probability distribution information of each piece of equipment in each of the ship subsystems, the damage level probability distribution information of multiple minimum equipment sets corresponding to each ship subsystem is determined.

[0009] Based on the damage level probability distribution information of each of the minimum equipment sets, mission capability analysis is performed to determine the mission capability level and probability information of each of the ship subsystems.

[0010] Based on the mission capability level and probability information of each of the ship subsystems, the evaluation results of each mission capability index of the damaged ship are determined.

[0011] Optionally, the step of performing mission capability analysis based on the damage level probability distribution information of each of the minimum equipment sets to determine the mission capability probability information corresponding to each of the minimum equipment sets includes:

[0012] Based on the damage level probability distribution information of each of the minimum equipment sets, determine the mission capability level and probability information of each of the minimum equipment sets.

[0013] Based on statistical analysis of the mission capability level and probability of each of the minimum equipment sets, the mission capability level and probability information of each ship subsystem are determined.

[0014] Optionally, before determining the damage level probability distribution information of multiple minimum equipment sets corresponding to each ship subsystem based on the damage level probability distribution information of each piece of equipment in each of the ship subsystems, the method further includes:

[0015] Based on the input and output devices in each of the ship subsystems, and the connection relationships of the various equipment in each ship subsystem, a set of multiple equipment paths corresponding to each ship subsystem is determined; the set of equipment paths is used to characterize the set of equipment that realizes the function of the corresponding ship subsystem.

[0016] According to a preset strategy, the multiple equipment path sets corresponding to each of the ship subsystems are traversed one by one, and multiple minimum equipment sets corresponding to each ship subsystem are determined from the multiple equipment path sets.

[0017] The preset strategy is that if removing any equipment from the equipment path set makes the equipment path set unusable for the corresponding ship subsystem, then the equipment path set is determined to be the minimum equipment set.

[0018] Optionally, the task capability level includes a first-level task capability, a second-level task capability, and a third-level task capability; the task capability level corresponding to the first-level task capability, the second-level task capability, and the third-level task capability decreases sequentially; correspondingly, determining the task capability level and its probability information of each of the minimum equipment sets based on the damage level probability distribution information of each of the minimum equipment sets includes:

[0019] Based on the damage level probability distribution information of each of the minimum equipment sets, the probabilities of the first damage level, the second damage level, the third damage level, the fourth damage level, and the fifth damage level corresponding to each of the minimum equipment sets are determined; the first damage level, the second damage level, the third damage level, the fourth damage level, and the fifth damage level are used to characterize five levels of damage severity that decrease sequentially.

[0020] Based on the probability of the fourth damage level and the probability of the fifth damage level corresponding to each of the minimum equipment sets, the probability that each of the minimum equipment sets possesses the first level mission capability is determined.

[0021] Based on the probability of the third damage level corresponding to each of the minimum equipment sets, the probability that each of the minimum equipment sets has the second level mission capability is determined.

[0022] Based on the probability of the first damage level and the probability of the second damage level corresponding to each of the minimum equipment sets, the probability that each of the minimum equipment sets possesses the third-level mission capability is determined.

[0023] Optionally, the step of performing statistical analysis based on the mission capability level and probability of each of the minimum equipment sets to determine the mission capability level and probability information of each ship subsystem includes:

[0024] Based on the mission capability level of each of the aforementioned minimum equipment sets, determine the number of minimum equipment sets with the same mission capability level;

[0025] Based on the number of minimum equipment sets with the same mission capability level and the probability corresponding to the mission capability level of each minimum equipment set, statistical analysis is performed to determine the mission capability level and probability information of each ship subsystem.

[0026] Optionally, the mission capability indicators include survivability indicators, maneuverability indicators, and combat capability indicators; the ship subsystems include unsinkability systems, fire systems, electrical systems, propulsion systems, and weapon launching systems; the assessment result of determining each mission capability indicator of the damaged ship based on the mission capability level and probability information of each of the ship subsystems includes:

[0027] Based on the mission capability level and probability information of the non-sinkable system and the mission capability level and probability information of the fire system, the evaluation result of the vitality index is determined.

[0028] Based on the task capability level and probability information of the power system and the task capability level and probability information of the propulsion system, the evaluation result of the mobility capability index is determined;

[0029] Based on the mission capability level and probability information of the weapon launch system, the evaluation results of the combat capability indicators are determined.

[0030] Optionally, determining the damage level probability distribution information of multiple minimum equipment sets corresponding to each ship subsystem based on the damage level probability distribution information of each piece of equipment in each of the ship subsystems includes:

[0031] Based on the damage level probability distribution information of each piece of equipment in each of the ship subsystems, the damage level probability distribution information of each piece of equipment in each of the minimum equipment sets is determined.

[0032] Based on the damage level probability distribution information of each piece of equipment in each of the minimum equipment sets and the connection relationship of each piece of equipment in each of the minimum equipment sets, the damage level probability distribution information of multiple minimum equipment sets corresponding to each ship subsystem is determined.

[0033] Secondly, this application provides a device for assessing the mission capability of damaged ship equipment, comprising:

[0034] The first processing module is used to determine the probability distribution information of damage level of each piece of equipment in each subsystem of the damaged vessel.

[0035] The second processing module is used to determine the damage level probability distribution information of multiple minimum equipment sets corresponding to each of the ship subsystems based on the damage level probability distribution information of each piece of equipment in each of the ship subsystems.

[0036] The capability analysis module is used to perform mission capability analysis based on the damage level probability distribution information of each of the minimum equipment sets, and to determine the mission capability level and probability information of each of the ship subsystems.

[0037] The capability assessment module is used to determine the assessment results of each mission capability index of the damaged vessel based on the mission capability level and probability information of each of the vessel subsystems.

[0038] Thirdly, this application provides an electronic device, comprising: at least one memory for storing a program; and at least one processor for executing the program stored in the memory, wherein when the program stored in the memory is executed, the processor is configured to execute the method described in the first aspect or any possible implementation thereof.

[0039] Fourthly, this application provides a computer-readable storage medium storing a computer program that, when run on a processor, causes the processor to perform the method described in the first aspect or any possible implementation thereof.

[0040] Fifthly, this application provides a computer program product that, when run on a processor, causes the processor to perform the method described in the first aspect or any possible implementation thereof.

[0041] It is understood that the beneficial effects of the second to fifth aspects mentioned above can be found in the relevant descriptions in the first aspect mentioned above, and will not be repeated here.

[0042] Overall, the technical solutions conceived in this application have the following beneficial effects compared with the prior art:

[0043] This application provides a method, apparatus, equipment, and medium for assessing the mission capability of damaged ship equipment. By considering the functional composition and characteristics of damaged ship equipment, it establishes a minimum equipment set for performing tasks based on ship and equipment damage information. It establishes a hierarchical assessment method for minimum equipment set damage level assessment, functional system mission capability assessment, and damaged ship mission capability assessment. The calculation method is scientific and intuitive, which can effectively improve the accuracy and reliability of the assessment results of damaged ship equipment mission capability. Compared with traditional damage level assessment, it can further provide quantitative information on the mission capability of damaged ships, fill the theoretical gap in the quantitative assessment of the mission capability of damaged ship equipment, and provide a quantitative decision-making basis for the command and decision-making of damaged ships for subsequent mission use and repair strategies. Attached Figure Description

[0044] Figure 1 This is one of the flowcharts illustrating the method for assessing the mission capability of damaged ship equipment provided in the embodiments of this application;

[0045] Figure 2 This is a schematic diagram of the reliability structure of the ship subsystem provided in the embodiments of this application;

[0046] Figure 3 This is the second flowchart illustrating the method for assessing the mission capability of damaged ship equipment provided in this application embodiment;

[0047] Figure 4 This is a schematic diagram of the structure of a typical ship electrical function equipment provided in the embodiments of this application;

[0048] Figure 5 This is a schematic diagram of the structure of a typical ship propulsion system provided in the embodiments of this application;

[0049] Figure 6 This is a schematic diagram of the structure of the damage ship equipment mission capability assessment device provided in the embodiments of this application;

[0050] Figure 7 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0052] The terms "first" and "second," etc., used in the specification and claims of this application are used to distinguish different objects, not to describe a specific order of objects. For example, "first damage level" and "second damage level," etc., are used to distinguish different damage levels, not to describe a specific order of damage levels.

[0053] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0054] In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more, for example, multiple processing units means two or more processing units, multiple elements means two or more elements, etc.

[0055] The embodiments of this application are described below with reference to the accompanying drawings.

[0056] It should be noted that, based on factors such as the degree of damage to the ship and equipment, loss of function, time and value of damage repair, and division of tasks in the emergency repair operation system, the damage levels of individual components, systems and the whole ship are divided into scrap (Level A), severe damage (Level B), moderate damage (Level C), minor damage (Level D), and intact (Level E).

[0057] For individual ship components and systems, the classification is as follows: Scrapping (Level A) indicates complete loss of function, severe damage, and loss of basic functions; irreparable or without repair value; equipment scrapped or dismantled for reuse. Severe damage (Level B) indicates basic loss of function and severe damage to basic functions; repairable; requires significant resources; long repair time; requires subsequent repair. Moderate damage (Level C) indicates partial loss of function and partial damage to basic functions; high repair value; high resource requirements; relatively long repair time; requires emergency repair at sea or subsequent repair. Minor damage (Level D) indicates basic functions not lost and undamaged; high repair value; requires resources at sea; short repair time; requires emergency repair at sea or delayed repair. In good condition (Level E) indicates no loss of function, no damage to basic functions, and the equipment is in good technical condition.

[0058] Based on the ship's mission, equipment composition, and functional importance, the overall function of a damaged ship is categorized into unsinkability (S1), fire capability (S2), electrical performance (S3), propulsion performance (S4), and combat capability (S5). Overall ship scrapping (Class A) refers to complete loss of unsinkability (S1) and maneuverability (electrical performance (S3), propulsion performance (S4)); hull structural failure, loss of reserve buoyancy and stability; a ship-wide fire, complete failure of the propulsion and electrical systems; severe damage to major systems and equipment, beyond repair or with no repair value; the ship is about to sink, capsize, or break apart. Overall heavy ship damage (Class B) refers to near-complete loss of maneuverability and partial loss of unsinkability; propulsion system damage exceeding 50%, requiring towing back to port for repair; a major fire; and severe damage to major systems and equipment. Overall moderate ship damage (Class C) refers to partial loss of unsinkability and maneuverability; propulsion and electrical system damage less than 50%, allowing for self-propelled return to port for repair; damage to secondary systems or equipment that does not affect the ship's primary mission. A ship is generally considered to be slightly damaged (Class D) and has not lost its unsinkability or maneuverability; but has suffered damage to minor systems and local equipment that does not affect the ship's use. A ship is generally in good condition (Class E) and has not lost its main functions; its equipment is in good technical condition.

[0059] Based on the above classification of damage levels for individual equipment, systems, and the overall ship, the mission capabilities of a damaged ship can be mainly divided into survivability, maneuverability, and combat capability. Survivability primarily includes the ship's unsinkability and fire resistance, forming the basis for other mission capabilities. Survivability indicators are primarily assessed based on the damage levels of functional units such as unsinkability (S1) and fire resistance (S2). All equipment in these functional units must be included in the mission; therefore, the assessment of the ship's survivability index can be calculated based on the series connection of unsinkability (S1) and fire resistance (S2). Maneuverability mainly depends on the ship's electrical performance (S3) and propulsion performance (S4). It requires searching and selecting the minimum set of electrical and propulsion equipment needed for the ship to perform maneuvering missions based on the series-parallel connections of the selected minimum equipment sets and their damage levels. The ship's maneuverability index is then calculated based on the series-parallel connections and damage levels of the selected minimum equipment sets. Combat capability mainly includes combat performance (S5), which primarily depends on the integrity of the equipment required for weapon firing. Its assessment method is the same as for maneuverability; the combat capability index can be calculated and determined based on the series-parallel connections and damage levels of the minimum set of equipment required for weapon firing. Therefore, by taking ship maneuverability as an example, the design and calculation of the evaluation method can cover the evaluation method of all ship mission capabilities.

[0060] Based on the equipment functional requirements for the damaged vessel to perform its mission, the vessel's mission capability is divided into full mission capability, basic mission capability, and lost mission capability. The vessel's maneuverability is correspondingly divided into full maneuverability, basic maneuverability, and lost maneuverability, meeting the commander's needs for assessing the damaged vessel's mission capability.

[0061] Based on the damage status of equipment belonging to the ship's electrical and propulsion functions, the existing technology "A Ship Damage Assessment Method, Device, Electronic Equipment and Storage Medium" can be used to calculate the probability distribution information of damage levels of individual equipment belonging to the ship's electrical, propulsion and other systems.

[0062] However, the aforementioned ship and equipment damage assessment primarily analyzes the damage of all equipment. Based on the assessment of individual equipment damage levels and probabilities, it then conducts a bottom-up assessment of ship damage levels according to the system and overall equipment composition and degree of functional loss, mainly employing an assessment of the entire equipment set from individual equipment to the system and overall system. In reality, regarding the mission capability of ship equipment, since the required equipment set may be designed in parallel, thus enhancing the ship's mission capability, only some equipment needs to be intact to possess a certain mission capability. Therefore, it is necessary to assess based on the minimum equipment set required for the ship to perform its mission. Here, the minimum equipment set refers to the minimum set of equipment required to achieve the relevant capabilities.

[0063] Figure 1 This is one of the flowcharts illustrating the method for assessing the mission capability of damaged ship equipment provided in this application embodiment, such as... Figure 1 As shown, it includes:

[0064] Step S1: Determine the probability distribution information of damage level for each piece of equipment in each subsystem of the damaged vessel.

[0065] Step S2: Based on the damage level probability distribution information of each piece of equipment in each ship subsystem, determine the damage level probability distribution information of multiple minimum equipment sets corresponding to each ship subsystem.

[0066] Step S3: Perform mission capability analysis based on the damage level probability distribution information of each minimum equipment set to determine the mission capability level and probability information of each ship subsystem.

[0067] Step S4: Based on the mission capability level and probability information of each ship subsystem, determine the evaluation results of each mission capability index of the damaged ship.

[0068] Specifically, the ship subsystems described in this application embodiment may include an unsinkability system (S1), a fire protection system (S2), an electrical system (S3), a propulsion system (S4), and a weapon launching system (S5). The unsinkability system refers to the physical structural system used to prevent the ship from sinking, and may include three parts: a keel structure, multiple watertight compartments, and a superstructure. The fire protection system can divide the entire hull into multiple fire-resistant blocks. The electrical system may specifically include multiple electrical subsystems, each including a switchboard and multiple parallel generators, each generator including a series-connected diesel generator and a generator. The propulsion system may specifically include multiple propulsion subsystems, each including a port gearbox, port rudder, port controllable pitch propeller, etc. The weapon launching system may specifically consist of various equipment required for weapon launching connected together.

[0069] In the embodiments of this application, in step S1, the damage level and probability of individual equipment can be calculated based on the comprehensive equipment damage information of the damaged ship input by the ship technicians, in accordance with the existing ship damage assessment method described above. By combining the damage level normal distribution model, uncertainty analysis can be performed based on the damage level information and damage level uncertainty information of each piece of equipment in each subsystem of the damaged ship, and the damage level probability distribution information of each piece of equipment in each ship subsystem on the damaged ship can be effectively determined.

[0070] Here, the damage level probability distribution information described in the embodiments of this application may specifically include damage level and its corresponding probability information.

[0071] Among them, the comprehensive equipment damage information refers to the comprehensive information on equipment damage in each equipment in each subsystem of the ship system that is set in advance. Specifically, it can be determined based on the empirical value estimation by experienced technicians, and may include damage level information, damage level uncertainty information and equipment weight information.

[0072] Here, equipment damage level information can be subdivided into five categories according to the degree of damage: no damage, minor damage, moderate damage, severe damage, and scrap. Damage level uncertainty information describes the uncertain relationship between the damage level probability index and the damage level, and can be further divided into very certain, relatively certain, basically certain, and uncertain under each damage level. For example, the uncertainty information under the no-damage level includes no-damage / very certain, no-damage / relatively certain, no-damage / basically certain, and no-damage / uncertain; the uncertainty information under the minor damage level includes minor-damage / very certain, minor-damage / relatively certain, minor-damage / basically certain, and minor-damage / uncertain; equipment weight information is used to characterize the proportion of importance of the equipment in the impact of the damage level.

[0073] Furthermore, in step S2, after determining the multiple minimum equipment sets corresponding to each ship subsystem in advance, based on the damage level probability distribution information of each piece of equipment in each ship subsystem, and combined with the connection relationship between the pieces of equipment in each minimum equipment set, the damage level probability distribution information of the multiple minimum equipment sets corresponding to each ship subsystem is determined through the ship damage assessment method described above.

[0074] It should be noted that due to the large number of shipboard equipment and the complex interrelationships of their mission functions, it is difficult to accurately determine the minimum equipment set. An optimal path search algorithm is needed to find a "good enough" minimum equipment set, but this cannot guarantee that it is the minimum. Therefore, this application also provides a method for determining the minimum equipment set.

[0075] Based on the above embodiments, as an optional embodiment, before determining the damage level probability distribution information of multiple minimum equipment sets corresponding to each ship subsystem in step S2, based on the damage level probability distribution information of each piece of equipment in each ship subsystem, the method further includes:

[0076] Based on the input and output devices in each ship subsystem, and the connection relationships of each piece of equipment in each ship subsystem, multiple sets of equipment paths are determined for each ship subsystem. The set of equipment paths is used to represent the set of equipment that realizes the function of the corresponding ship subsystem. According to a preset strategy, the multiple sets of equipment paths for each ship subsystem are traversed one by one, and multiple minimum sets of equipment corresponding to each ship subsystem are determined from the multiple sets of equipment paths.

[0077] The default strategy is that if removing any equipment from the equipment path set renders the entire equipment path set unusable for the corresponding ship subsystem, then that equipment path set is determined to be the minimum equipment set.

[0078] Specifically, in the embodiments of this application, before determining the damage level probability distribution information of multiple minimum equipment sets corresponding to each ship subsystem in step S2, it is also necessary to determine each minimum equipment set corresponding to each ship subsystem.

[0079] More specifically, in the embodiments of this application, a functional block diagram of the main equipment of the damaged ship can be drawn. For each ship subsystem, components can be represented by blocks and connected according to their functional relationships. A series connection indicates that the line is normal only if all components are normal; a parallel connection indicates that the line is normal only if any component is normal.

[0080] Furthermore, in the embodiments of this application, for each ship subsystem, starting from the input device, based on the output device and the connection relationship of each piece of equipment in the subsystem, all normal paths can be enumerated. From the input device to the output device, all paths composed of normal components that allow the signal to pass can be found. Each path corresponds to a set of equipment paths. In this way, multiple sets of equipment paths corresponding to each ship subsystem can be determined.

[0081] Furthermore, in the embodiments of this application, the minimum equipment set is solved based on the equipment path set. Multiple equipment path sets corresponding to each ship subsystem are traversed one by one according to a preset strategy. All equipment path sets obtained in the previous step are checked, and the multiple equipment path sets corresponding to each ship subsystem are traversed one by one according to the preset strategy. Specifically, for each equipment path set, any one component in the equipment path set is removed, and it is determined whether the remaining set of components is still a complete path that can realize the function of the corresponding ship subsystem. If not, it means that the removed equipment path set can no longer be used to realize the function of the corresponding ship subsystem, and the original equipment path set can be determined as the minimum equipment set.

[0082] If so, then it can be determined that the original set of equipment paths is not the minimum set of equipment. Then, the aforementioned steps can be repeated to delete other components until the set of equipment paths can achieve the system function without reducing the number of components, and finally the corresponding minimum set of equipment can be determined.

[0083] For example, we solve for the minimum set of equipment in a bridge network. Assume the enumerated set of all equipment paths is: {A,B}, {C,D}, {A,E,D}, {C,E,B}.

[0084] Next, perform a minimum equipment set check:

[0085] If we remove A from the set of equipment paths {A, B}, we are left with {B}, which is not a valid path; if we remove B, we are left with {A}, which is also not a valid path. Therefore, the set of equipment paths {A, B} is the minimum set of equipment.

[0086] Similarly, the set of equipment paths {C,D} is also the minimum equipment set.

[0087] The set of equipment paths {A,E,D} is such that removing A leaves {E,D}, which is impassable; removing E leaves {A,D}, which is also impassable; removing D leaves {A,E}, which is also impassable. Therefore, it is the minimal set of equipment.

[0088] Similarly, the set of equipment paths {C,E,B} is also the smallest set of equipment.

[0089] Therefore, the search results yielded 4 minimum equipment sets.

[0090] Alternatively, in the embodiments of this application, reliability mathematical theory can also be used to model and calculate the minimum equipment set for a specific ship equipment.

[0091] Here, the combination methods of equipment in a specific ship equipment system include common functional connection methods such as series connection, parallel connection, voting (k out of n, k / n(G)), and reserve. Ship systems and their constituent equipment units typically have only two states: normal and failed. The system's state is entirely determined by the system's functional block diagram and the states of the equipment units. The functional relationships of a ship system using the block diagram can usually be described by binary logic functions, also known as structure functions.

[0092] For example, suppose a ship is equipped with a certain subsystem S Depend on n It consists of a number of equipment units, defining the first... The state variables of each equipment unit are:

[0093] ;

[0094] The state of this ship subsystem can then be represented as:

[0095] ;

[0096] in, x yes n dimensional vector , yes n dimensional vector x A binary function, and

[0097] ;

[0098] Here, it is called Let be the structure function of the system, where is the state vector of the unit.

[0099] For ease of description, for any two state vectors of a unit x, y ,Regulation express .and express And it contains a subscript. j make .

[0100] like =1, then the unit state vector is called the unit state vector. x This is a path vector (or simply path) of the system. Called x The road collection, if x It is the path of the system; and for any state vector of a unit ,like ,have Then it is called x It is a minimum path in the system, and correspondingly For a minimum set of paths in the system, The number of elements in a minimum path is called the order or length of the minimum path. Therefore, a minimum path set of a system is actually the minimum set of equipment for the system to function properly; the system functions properly when these units are functioning correctly. For any system, there are often multiple minimum paths.

[0101] For example, suppose the reliability structure diagram of a certain subsystem of a ship is as follows: Figure 2 As shown, component 1 is represented as Component 2 is represented as Component 3 is represented as Component 4 is represented as Find the minimum path and minimum equipment set of the system. Based on the diagram, the structure function of the system can be written as:

[0102] ;

[0103] Therefore, we know that there are 3 minimum paths in this system, which can be represented as follows:

[0104] (1,0,1,0), (0,1,1,0), (0,0,0,1);

[0105] The corresponding minimum equipment sets are respectively They can be denoted as:

[0106] ;

[0107] The structure function of the system can then be expressed as:

[0108] ;

[0109] This expression is called the minimum path of the structure function of the ship system, also known as the first standard form of the structure function.

[0110] For example, as attached to this application Figure 4 Solving for the minimum equipment set of the ship's electrical system, as shown, yields:

[0111] ;

[0112] The minimum equipment set of a ship's electrical system can then be represented as:

[0113] ;

[0114] The method in this application decomposes each ship subsystem into a set of equipment paths and further simplifies the functions to obtain a minimum set of equipment. This transforms the reliability problem of complex ship systems into the reliability calculation of multiple simple equipment paths, which can effectively reduce computational complexity and improve the reliability and efficiency of assessing the mission capability of damaged ship equipment.

[0115] In the embodiments of this application, in step S3, by utilizing the functional task composition and characteristics of damaged ship equipment, and based on the probability distribution information of the damage level of each minimum equipment set, the task capability level and probability information of each ship subsystem can be determined from the perspective of different ship subsystems.

[0116] Furthermore, in the embodiments of this application, in step S4, based on the functions of each ship subsystem and the logical relationships between them, the corresponding task capability indicators are evaluated using the task capability level and probability information of each ship subsystem, thereby obtaining the evaluation results of each task capability indicator of the damaged ship.

[0117] The method for assessing the mission capability of damaged ship equipment in this application takes into account the functional composition and characteristics of the damaged ship equipment, establishes a minimum equipment set for performing tasks based on the ship and equipment damage information, and establishes a hierarchical assessment method of minimum equipment set damage level assessment, functional system mission capability assessment, and damaged ship mission capability assessment. The calculation method is scientific and intuitive, which can effectively improve the accuracy and reliability of the assessment results of damaged ship equipment mission capability. Compared with the traditional damage level assessment, it can further provide quantitative information on the mission capability of damaged ships, fill the theoretical gap in the quantitative assessment of the mission capability of damaged ship equipment, and provide a quantitative decision-making basis for the command and decision-making of damaged ships for subsequent mission use and repair strategies.

[0118] Based on the above embodiments, as an optional embodiment, step S2, based on the damage level probability distribution information of each piece of equipment in each ship subsystem, determines the damage level probability distribution information of multiple minimum equipment sets corresponding to each ship subsystem, including:

[0119] Based on the damage level probability distribution information of each piece of equipment in each ship subsystem, the damage level probability distribution information of each piece of equipment in each minimum equipment set is determined.

[0120] Based on the damage level probability distribution information of each piece of equipment in each minimum equipment set and the connection relationship of each piece of equipment in each minimum equipment set, the damage level probability distribution information of multiple minimum equipment sets corresponding to each ship subsystem is determined.

[0121] It should be noted that the embodiments of this application use the ship maneuverability index as an example to introduce the evaluation method and illustrate the example calculation. It can cover the evaluation implementation methods of all ship mission capabilities. The evaluation of other mission capability indicators, including survivability indicators and combat capability indicators, can all be performed in accordance with the evaluation implementation methods of the maneuverability index.

[0122] Specifically, in the embodiments of this application, the ship's maneuverability indicators can include two categories: electrical performance and propulsion performance, corresponding to the electric system and the propulsion system. Based on the probability distribution information of damage levels of each piece of equipment in the electric system and the propulsion system, the damage level at the minimum equipment set level is calculated.

[0123] Specifically, based on the equipment composition of the ship's electrical system S3 and propulsion system S4, establish the electrical task functions. m A minimal set of equipment, which can be represented as [EE1, EE2, ..., EE...]. i , ..., EE m ], and power mission functions n A minimal set of equipment, which can be represented as [EP1, EP2, ..., EP... j , ..., EP n Then, the damage level of each minimum equipment set is calculated separately. L Sum of probabilities P .

[0124] Furthermore, in the embodiments of this application, based on the damage level probability distribution information of each piece of equipment in each minimal equipment set and the connection relationship of each piece of equipment in each minimal equipment set, the damage level probability distribution information corresponding to each minimal equipment set can be determined according to existing algorithms. That is, in the power EE task function, the damage level probability distribution information of the first piece of equipment is determined. i The damage level probability distribution information corresponding to each minimal equipment set can be represented as follows: These correspond to the probabilities of scrapping, severe damage, moderate damage, minor damage, and intact operation, respectively; regarding the power EP task function, the first... j The damage level probability distribution information corresponding to each minimal equipment set can be represented as follows: These correspond to the probabilities of scrapping, severe damage, moderate damage, minor damage, and intactness, respectively.

[0125] Furthermore, based on the probability distribution information of damage levels for each of the multiple minimum equipment sets corresponding to the power EE and power EP functions, the damage level of each equipment set can be directly determined as the damage level with the highest probability. That is, the calculation methods for the damage levels of the minimum equipment set hierarchy are as follows:

[0126] (1);

[0127] In the formula, Indicates the first in the power system i The damage level corresponding to the minimum equipment set; Indicates the first in the power system j The damage level corresponding to the minimum equipment set.

[0128] This allows us to determine the probability distribution of damage levels for multiple minimum equipment sets corresponding to the power system S3 and the propulsion system S4, respectively. Furthermore, in the same manner, we can also determine the probability distribution of damage levels for multiple minimum equipment sets corresponding to each ship subsystem.

[0129] The method in this application embodiment determines the minimum equipment set for a ship to perform a mission by searching, considers the organizational connection relationship and functional coupling of each device in the equipment set, analyzes the logical relationship and damage transmission mechanism between basic devices, establishes the damage level and probability of the minimum equipment set, and provides reliable technical data for subsequent analysis of the ship's mission capability.

[0130] Based on the above embodiments, as an optional embodiment, in step S3, mission capability analysis is performed based on the damage level probability distribution information of each minimum equipment set to determine the mission capability probability information corresponding to each minimum equipment set, including:

[0131] Based on the damage level probability distribution information of each minimum equipment set, determine the mission capability level and probability information of each minimum equipment set.

[0132] Statistical analysis is conducted based on the mission capability level and probability of each minimum equipment set to determine the mission capability level and probability information of each ship subsystem.

[0133] Specifically, in the embodiments of this application, after determining the damage level probability distribution information of each minimum equipment set, the mission capability level and its probability information of each minimum equipment set can be further determined based on the damage level probability distribution information of each minimum equipment set.

[0134] Based on the above embodiments, as an optional embodiment, the task capability level includes a first-level task capability, a second-level task capability, and a third-level task capability; the task capability level corresponding to the first-level task capability, the second-level task capability, and the third-level task capability decreases in that order.

[0135] Correspondingly, based on the damage level probability distribution information of each minimum equipment set, the mission capability level and its probability information of each minimum equipment set are determined, including:

[0136] Based on the damage level probability distribution information of each minimum equipment set, determine the probability of the first damage level, the probability of the second damage level, the probability of the third damage level, the probability of the fourth damage level, and the probability of the fifth damage level corresponding to each minimum equipment set; the first damage level, the second damage level, the third damage level, the fourth damage level, and the fifth damage level are used to characterize five levels of damage severity that decrease sequentially.

[0137] Based on the probability of the fourth damage level and the probability of the fifth damage level corresponding to each minimum equipment set, determine the probability that each minimum equipment set has the first-level mission capability.

[0138] Based on the probability of the third damage level corresponding to each minimum equipment set, determine the probability that each minimum equipment set has the capability of the second level mission.

[0139] Based on the probabilities of the first and second damage levels corresponding to each minimum equipment set, the probability of each minimum equipment set possessing the third-level mission capability is determined.

[0140] Specifically, the first damage level, second damage level, third damage level, fourth damage level and fifth damage level described in the embodiments of this application correspond to scrap (level A), severe damage (level B), moderate damage (level C), minor damage (level D) and intact (level E), respectively.

[0141] The task capability levels of the first-level, second-level, and third-level task capabilities described in the embodiments of this application decrease sequentially; the first-level task capability can be used to characterize all task capabilities, the second-level task capability can be used to characterize basic task capabilities, and the third-level task capability is used to characterize the loss of task capabilities.

[0142] In the embodiments of this application, the mission capability of the minimum equipment set level is calculated based on the damage level probability distribution information of each minimum equipment set.

[0143] Specifically, taking the ship's maneuverability index as an example, based on the damage level, the minimum equipment sets for electrical (EE) and propulsion (EP) can be classified. Equipment sets with minor damage (Level D) or below possess full mission capabilities. Ability_Full ); Medium damage (Level C) equipment sets possess basic mission capabilities ( Ability_Basic Equipment that is severely damaged (Level B) or above loses its mission capability. Ability_Lack The probabilities are the maximum probabilities corresponding to the damage levels of the equipment sets. Based on the probability distribution information of the damage levels of each minimum equipment set in the power EE and power EP systems, the probabilities of the first, second, third, fourth, and fifth damage levels corresponding to each minimum equipment set are determined.

[0144] For example, for a power system, the probabilities of the first, second, third, fourth, and fifth damage levels corresponding to the minimum equipment set are respectively expressed as: These correspond to the probabilities of scrapping, severe damage, moderate damage, minor damage, and intactness, respectively.

[0145] In this embodiment, based on the probability of minor damage level and intact damage level corresponding to each minimum equipment set, the maximum probability value is selected to determine whether each minimum equipment set possesses full mission capabilities. Ability_Full The probability of (). This process can be expressed as:

[0146] (2);

[0147] In the formula, These represent the damage levels of minor damage and intact condition, respectively.

[0148] Furthermore, in the embodiments of this application, the probability that each minimum equipment set possesses basic mission capabilities can be directly determined based on the probability of the medium damage level corresponding to each minimum equipment set. This process can be expressed as:

[0149] (3);

[0150] In the formula, This indicates the damage level of the medium-sized damage.

[0151] Furthermore, in the embodiments of this application, the probability of each minimum equipment set having lost its mission capability is determined based on the probability of its scrap damage level and the probability of its severe damage level. This process can be expressed as:

[0152] (4);

[0153] In the formula, These indicate the damage levels of scrap and severe damage, respectively.

[0154] Similarly, following the implementation method of the above-mentioned ship maneuverability index, the mission capability level and probability information of each minimum equipment set involved in the survivability index and combat capability index are determined.

[0155] The method in this application embodiment, by deeply analyzing the natural laws governing the impact of different damage levels on mission capability execution, quantitatively evaluates the mission capability at the minimum equipment set level. This effectively ensures the objectivity and accuracy of the mission capability evaluation at the minimum equipment set level, and is conducive to improving the accuracy of subsequent evaluations of the mission capability of ship subsystems.

[0156] Furthermore, in the embodiments of this application, statistical analysis is performed based on the mission capability level and probability of each minimum equipment set to determine the mission capability level and probability information of each ship subsystem.

[0157] Based on the above embodiments, as an optional embodiment, statistical analysis is performed on the mission capability level and probability of each minimum equipment set to determine the mission capability level and probability information of each ship subsystem, including:

[0158] The number of minimum equipment sets with the same mission capability level is determined based on the mission capability level of each minimum equipment set.

[0159] Statistical analysis is conducted based on the number of minimum equipment sets with the same mission capability level and the probability corresponding to the mission capability level of each minimum equipment set to determine the mission capability level and probability information of each ship subsystem.

[0160] Specifically, in the embodiments of this application, the functional system-level task capability is calculated and analyzed based on the task capability level and probability corresponding to each minimum equipment set.

[0161] More specifically, taking the ship's maneuverability index as an example, and combining the redundancy design principles and mission requirements of the ship's electrical and power functional units and systems, the number of minimum equipment sets with the same mission capability level is determined based on the mission capability level of each minimum equipment set. The number of minimum equipment sets with each damage level for the electrical and power systems is then counted separately. M , N And perform quantity percentage analysis based on the mission capability probability corresponding to each minimum equipment set.

[0162] Specifically, when half or more of the smallest equipment units possess full mission capabilities, the corresponding electrical and power performance also possesses full mission capabilities. Ability_Full When more than half of all the minimum equipment is incapable of performing its mission, the corresponding electrical and power performance can be considered incapable of performing its mission. Ability_Lack When less than half of all the minimum equipment sets are fully capable of performing their missions, or half or less are incapable of performing their missions, the corresponding electrical and power performance can be considered to possess basic mission capability. Ability_BasicConsidering that the full mission capability places higher demands on equipment functional status, according to the conservative principle of reliability engineering, the probability of a favorable event is taken as the minimum value that satisfies the conditions; the loss of mission capability has a significant impact on equipment functional status, and according to the conservative principle of reliability engineering, the probability of an unfavorable event is taken as the maximum value that satisfies the conditions; there are multiple combinations of minimum equipment sets for basic mission capability, and according to the law of large numbers in probability statistics and engineering evaluation, the probability is taken as the average probability of the minimum equipment set that satisfies the conditions for basic mission capability and full mission capability. Therefore, the process of calculating the mission capability and probability at the functional system level above can be expressed as: (5);

[0163] In the formula, This represents the minimum number of equipment sets in a power system capable of performing all tasks. This represents the minimum number of equipment sets in a power system that have lost their ability to perform tasks. This represents the probability that the power system possesses all its mission capabilities; This represents the probability that the power system possesses basic operational capabilities. This represents the probability of a power system losing its ability to perform its tasks. This represents the total number of minimum equipment sets in a power system. (6);

[0164] In the formula, This represents the minimum number of equipment sets in a power system that possess all mission capabilities. This represents the minimum number of equipment sets in a power system that have lost their mission capability. This represents the probability that the power system possesses all mission capabilities; This represents the probability that the power system possesses basic mission capabilities; This represents the probability that the power system loses its ability to perform its task. This represents the total number of minimum equipment sets in the power system.

[0165] Similarly, the mission capability level and probability information of other ship subsystems can also be determined in the same way.

[0166] The method in this application embodiment combines the redundancy design principle and mission function requirements of different functional system units of ship equipment, and uses the mission capability level and probability of the minimum equipment set in each system for statistical analysis and mission capability judgment. This can achieve a scientific assessment of the mission capability of each ship subsystem, which is conducive to further improving the accuracy of the assessment of the overall mission capability of damaged ships.

[0167] Based on the above embodiments, as an optional embodiment, the mission capability indicators include survivability indicators, maneuverability indicators, and combat capability indicators; the ship subsystems include unsinkability systems, fire systems, electrical systems, propulsion systems, and weapon launching systems; based on the mission capability level and probability information of each ship subsystem, the evaluation result of each mission capability indicator of the damaged ship is determined, including:

[0168] The assessment results of the vitality index are determined based on the mission capability level and probability information of the non-sinking system and the mission capability level and probability information of the fire system.

[0169] The assessment results of maneuverability indicators are determined based on the task capability level and probability information of the power system and the task capability level and probability information of the propulsion system.

[0170] The assessment results of combat capability indicators are determined based on the mission capability level and probability information of the weapon launch system.

[0171] Specifically, in the embodiments of this application, based on the foregoing analysis and according to the aforementioned damage level classification of individual ship components, systems, and the overall ship, the damaged ship mission capability indicators can be mainly divided into survivability indicators, maneuverability indicators, and combat capability indicators.

[0172] Taking the assessment of maneuverability as an example, after determining the mission capability level and probability information of each electric and propulsion system, the maneuverability of the damaged vessel can be further calculated and analyzed. Specifically, the maneuverability of the damaged vessel is calculated based on the mission capability at the electric and propulsion system level. When both the electric and propulsion systems are at full mission capability, the damaged vessel possesses full maneuverability. Manoeuverability = Full When parts of the electrical and propulsion systems lose their operational capability, the damaged vessel loses its maneuverability. Manoeuverability = Lack When the electrical and propulsion functions are the basic mission capabilities, the damaged vessel possesses basic maneuverability. Manoeuverability = Basic Considering that full maneuverability places higher demands on the functional status of equipment, its probability is determined by the series-connected electric and propulsion functional units; loss of maneuverability can be determined by any one of the series-connected electric and propulsion functional units, and its probability is the maximum value of the conditions met; basic maneuverability has multiple combinations of series-connected electric and propulsion mission capabilities, and its probability is the average probability of satisfying the conditions of basic mission capability and full mission capability. Therefore, the calculation process of the ship's maneuverability index and its probability can be expressed as formula (7), which is as follows:

[0173]

[0174]

[0175]

[0176] ;

[0177] If satisfied ,

[0178] but

[0179] ;

[0180] Similarly, in the embodiments of this application, the mission capability level and probability information of the unsinkable system and the mission capability level and probability information of the fire system can be determined by applying the principles of the above formulas (5) and (6). Then, the life index of the damaged ship and its probability can be calculated by applying the principles of the above formula (7). Thus, the evaluation result of the life index of the damaged ship can be obtained.

[0181] Meanwhile, according to the method of the above embodiments, when performing the assessment of the combat capability index of a damaged ship, a minimum equipment set can be established based on the functions required for the current mission. The damage level and probability of each minimum equipment set in the weapon launching system can be calculated according to the principle of the above formula (1). Then, the mission capability level and probability information of each minimum equipment set can be calculated using the principles of the above formulas (2) to (4). Finally, the mission capability level and probability information of the weapon launching system can be determined using the principles of the above formulas (5) or (6), thereby directly obtaining the combat capability index and probability of the entire damaged ship. Thus, a quantitative assessment of the mission capability of all equipment on a damaged ship can be completed.

[0182] The method in this application embodiment, by considering the inherent physical relationship between the ship's mission, equipment composition, and functional system division, constructs a relationship model between the mission capabilities of different ship functional systems and different mission capability indicators. This can effectively achieve accurate assessment of different mission capability indicators of damaged ships and improve the reliability of the assessment.

[0183] Figure 3 This is the second flowchart illustrating the method for assessing the mission capability of damaged ship equipment provided in this application embodiment, as shown below. Figure 3 As shown in the embodiment of this application, firstly, existing equipment damage level assessment algorithms can be used to calculate the damage level and probability of individual equipment based on the comprehensive damage information of the main equipment of the damaged ship input by technical experts. Then, according to the ship's current mission capability requirements, the minimum set of equipment involved in its survivability, maneuverability, combat capability, and other indicators is determined.

[0184] Next, the damage level probability distribution information of the minimum equipment set for the task is calculated.

[0185] Then, based on the damage level probability distribution information of each minimum equipment set, the mission capability level and its probability information of each ship subsystem are calculated, and the evaluation results of each mission capability index of the damaged ship are calculated. This can be divided into three aspects:

[0186] Firstly, based on the mission capabilities of the unsinkable system and the fire system, the vitality index and probability of the damaged ship are calculated using the above formulas (5) to (7) according to the mission capability calculation method at the functional unit level.

[0187] Secondly, based on the damage level probability distribution information of the minimum equipment set of the power and propulsion system, the task capability level and probability of each minimum equipment set are calculated using the above formulas (2) to (4) according to the minimum equipment set level task capability calculation method; then, based on the task capability of the minimum equipment set of the power and propulsion system, the task capability level and probability of the power and propulsion system are calculated using the above formulas (5) and (6) according to the functional unit level task capability calculation method; finally, based on the task capability of the power and propulsion system, the maneuverability index of the damaged ship is calculated using the above formula (7) according to the maneuverability calculation method.

[0188] Thirdly, based on the probability distribution information of the damage level of the minimum equipment set of the weapon launching system, the task capability level and probability of each minimum equipment set are calculated using the principle of formulas (2) to (4) above, according to the above minimum equipment set hierarchical task capability calculation method; based on the task capability of the minimum equipment set of the weapon launching system, the task capability level and probability of the damaged ship's weapon launching system are calculated using the principle of formulas (5) or (6) above, according to the above functional unit hierarchical task capability calculation method, thus obtaining the combat capability index of the damaged ship and its probability. This allows for a quantitative assessment of the task capability of the damaged ship's equipment.

[0189] Typical ship electrical system S3 equipment composition as follows Figure 4 As shown, it typically consists of parallel forward and aft power stations. Each power station is composed of multiple sets of generating equipment connected in parallel, which are then connected in series with the switchboard to enhance the reliability and survivability of the power stations. According to the ship's electrical function requirements, there are four minimum equipment sets that can guarantee the ship's electrical functions, as shown in Table 1.

[0190] Table 1

[0191]

[0192] Typical S4 equipment components of a marine propulsion system include: Figure 5As shown, it typically consists of left and right power units connected in parallel. Each power unit is composed of a main engine and transmission equipment connected in parallel, and then connected in series with the rudder propeller equipment to enhance the reliability and survivability of the power unit. According to the needs of ship power function, there are four minimum equipment sets that can guarantee the ship's power performance, as shown in Table 2.

[0193] Table 2

[0194]

[0195] Table 3

[0196]

[0197] In one specific embodiment, the comprehensive damage information data of the equipment belonging to the electrical and propulsion systems of a typical damaged ship, input by an experienced expert, is shown in Table 3. Using existing ship damage assessment methods, the probability distribution information of the damage level of individual equipment in the electrical system S3 and the propulsion system S4 is first calculated, and then the damage level and probability of the minimum equipment set of the electrical and propulsion functions are calculated respectively. The results are shown in Table 4.

[0198] Table 4

[0199]

[0200] The minimum equipment set level mission capability level and probability of a typical damaged ship are calculated according to the above formulas (2) to (4), as shown in Table 5.

[0201] Table 5

[0202]

[0203] The mission capability level and probability of typical damaged ship electrical and propulsion systems are calculated according to formulas (5)-(6), as shown in Table 6.

[0204] Table 6

[0205]

[0206] Finally, according to the above formula (7), the probability that a typical damaged vessel has full maneuverability is 46.62%.

[0207] Table 7

[0208]

[0209] In another specific embodiment, the comprehensive damage information data of the equipment belonging to the power and propulsion systems of a typical damaged ship, input by experienced experts, is shown in Table 7. Using existing ship damage assessment methods, the probability distribution information of the damage level of individual equipment in the power system S3 and the propulsion system S4 is first calculated, and then the damage level and probability of the minimum equipment set of the power and propulsion functions are calculated respectively. The results are shown in Table 8.

[0210] Table 8

[0211]

[0212] The minimum equipment set level mission capability level and probability of a typical damaged ship are calculated according to the above formulas (2) to (4), as shown in Table 9.

[0213] Table 9

[0214]

[0215] The mission capability level and probability of typical damaged ship electrical and propulsion systems are calculated according to the aforementioned formulas (5)-(6), as shown in Table 10.

[0216] Table 10

[0217]

[0218] Finally, according to the aforementioned formula (7), the probability that a typical damaged vessel possesses basic maneuverability is 69.28%.

[0219] The following describes the damaged ship equipment mission capability assessment device provided in this application. The damaged ship equipment mission capability assessment device described below and the damaged ship equipment mission capability assessment method described above can be referred to in correspondence.

[0220] Figure 6 This is a schematic diagram of the structure of the damage ship equipment mission capability assessment device provided in the embodiments of this application, as shown below. Figure 6 As shown, it includes:

[0221] The first processing module 10 is used to determine the probability distribution information of damage level of each piece of equipment in each ship subsystem of the damaged ship.

[0222] The second processing module 20 is used to determine the damage level probability distribution information of multiple minimum equipment sets corresponding to each ship subsystem based on the damage level probability distribution information of each piece of equipment in each ship subsystem.

[0223] Capability analysis module 30 is used to perform mission capability analysis based on the damage level probability distribution information of each minimum equipment set, and to determine the mission capability level and probability information of each ship subsystem.

[0224] Capability assessment module 40 is used to determine the assessment results of each mission capability index of the damaged ship based on the mission capability level and probability information of each ship subsystem.

[0225] It should be understood that the above-described device is used to execute the methods in the above embodiments. The implementation principle and technical effect of the corresponding program modules in the device are similar to those described in the above methods. The working process of the device can be referred to the corresponding process in the above methods, and will not be repeated here.

[0226] The device for assessing the mission capability of damaged ship equipment in this application takes into account the functional composition and characteristics of the damaged ship equipment, establishes a minimum equipment set for performing tasks based on the ship and equipment damage information, and establishes a hierarchical assessment method of minimum equipment set damage level assessment, functional system mission capability assessment, and damaged ship mission capability assessment. The calculation method is scientific and intuitive, which can effectively improve the accuracy and reliability of the assessment results of damaged ship equipment mission capability. Compared with the traditional damage level assessment, it can further provide quantitative information on the mission capability of damaged ships, fill the theoretical gap in the quantitative assessment of the mission capability of damaged ship equipment, and provide a quantitative decision-making basis for the command and decision-making of damaged ships for subsequent mission use and repair strategies.

[0227] Based on the methods in the above embodiments, this application provides an electronic device, such as... Figure 7 As shown, the electronic device may include a processor 710, a communications interface 720, a memory 730, and a communication bus 740, wherein the processor 710, the communications interface 720, and the memory 730 communicate with each other via the communication bus 740. The processor 710 can call logical instructions in the memory 730 to execute the methods in the above embodiments.

[0228] Furthermore, the logical instructions in the aforementioned memory 730 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application.

[0229] Based on the methods in the above embodiments, this application provides a computer-readable storage medium storing a computer program that, when run on a processor, causes the processor to execute the methods in the above embodiments.

[0230] Based on the methods in the above embodiments, this application provides a computer program product that, when run on a processor, causes the processor to execute the methods in the above embodiments.

[0231] It is understood that the processor in the embodiments of this application can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. A general-purpose processor can be a microprocessor or any conventional processor.

[0232] The method steps in this application embodiment can be implemented in hardware or by a processor executing software instructions. The software instructions can consist of corresponding software modules, which can be stored in random access memory (RAM), flash memory, read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), registers, hard disks, portable hard disks, CD-ROMs, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can reside in an ASIC.

[0233] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially as a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted through the computer-readable storage medium. The computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0234] It is understood that the various numerical designations used in the embodiments of this application are merely for the convenience of description and are not intended to limit the scope of the embodiments of this application.

[0235] It should be understood that expressions such as “comprising” and “may include” used in this application indicate the existence of the disclosed functions, operations, or constituent elements, and do not limit one or more additional functions, operations, and constituent elements. In this application, terms such as “comprising” and / or “having” are to be interpreted as indicating a particular characteristic, number, operation, constituent element, component, or combination thereof, but not to exclude the existence or possibility of adding one or more other characteristics, numbers, operations, constituent elements, components, or combinations thereof.

[0236] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for assessing the mission capability of damaged ship equipment, characterized in that, include: Determine the probability distribution of damage levels for each piece of equipment in each subsystem of the damaged vessel; Based on the damage level probability distribution information of each piece of equipment in each of the ship subsystems, the damage level probability distribution information of multiple minimum equipment sets corresponding to each ship subsystem is determined. Based on the damage level probability distribution information of each of the minimum equipment sets, mission capability analysis is performed to determine the mission capability level and probability information of each of the ship subsystems. Based on the mission capability level and probability information of each of the ship subsystems, the evaluation result of each mission capability index of the damaged ship is determined; The step of performing mission capability analysis based on the damage level probability distribution information of each of the minimum equipment sets to determine the mission capability level and probability information of each of the ship subsystems includes: Based on the damage level probability distribution information of each of the minimum equipment sets, determine the mission capability level and probability information of each of the minimum equipment sets. Based on the mission capability level of each of the aforementioned minimum equipment sets, determine the number of minimum equipment sets with the same mission capability level; Statistical analysis is performed based on the number of minimum equipment sets with the same mission capability level and the probability corresponding to the mission capability level of each minimum equipment set to determine the mission capability level and probability information of each ship subsystem. Specifically, when half or more of all the minimum equipment sets have full mission capability, the corresponding ship subsystem has full mission capability; when more than half of all the minimum equipment sets have lost mission capability, the corresponding ship subsystem has lost mission capability; when less than half of all the minimum equipment sets have full mission capability, or half or less have lost mission capability, the corresponding ship subsystem has basic mission capability.

2. The method for assessing the mission capability of damaged ship equipment according to claim 1, characterized in that, Before determining the damage level probability distribution information of multiple minimum equipment sets corresponding to each ship subsystem based on the damage level probability distribution information of each piece of equipment in each of the ship subsystems, the method further includes: Based on the input and output devices in each of the ship subsystems, and the connection relationships of the various equipment in each ship subsystem, a set of multiple equipment paths corresponding to each ship subsystem is determined; the set of equipment paths is used to characterize the set of equipment that realizes the function of the corresponding ship subsystem. According to a preset strategy, the multiple equipment path sets corresponding to each of the ship subsystems are traversed one by one, and multiple minimum equipment sets corresponding to each ship subsystem are determined from the multiple equipment path sets. The preset strategy is that if removing any equipment from the equipment path set makes the equipment path set unusable for the corresponding ship subsystem, then the equipment path set is determined to be the minimum equipment set.

3. The method for assessing the mission capability of damaged ship equipment according to claim 1, characterized in that, The task capability level includes a first-level task capability, a second-level task capability, and a third-level task capability; the task capability level corresponding to the first-level task capability, the second-level task capability, and the third-level task capability decreases sequentially; correspondingly, determining the task capability level and its probability information of each of the minimum equipment sets based on the damage level probability distribution information of each of the minimum equipment sets includes: Based on the damage level probability distribution information of each of the minimum equipment sets, the probabilities of the first damage level, the second damage level, the third damage level, the fourth damage level, and the fifth damage level corresponding to each of the minimum equipment sets are determined; the first damage level, the second damage level, the third damage level, the fourth damage level, and the fifth damage level are used to characterize five levels of damage severity that decrease sequentially. Based on the probability of the fourth damage level and the probability of the fifth damage level corresponding to each of the minimum equipment sets, the probability that each of the minimum equipment sets possesses the first level mission capability is determined. Based on the probability of the third damage level corresponding to each of the minimum equipment sets, the probability that each of the minimum equipment sets has the second level mission capability is determined. Based on the probability of the first damage level and the probability of the second damage level corresponding to each of the minimum equipment sets, the probability that each of the minimum equipment sets possesses the third-level mission capability is determined.

4. The method for assessing the mission capability of damaged ship equipment according to any one of claims 1-3, characterized in that, The mission capability indicators include survivability indicators, mobility indicators, and combat capability indicators; the ship subsystems include unsinkability systems, fire systems, electrical systems, propulsion systems, and weapon launching systems. The assessment result for each mission capability index of the damaged vessel, based on the mission capability level and probability information of each of the vessel subsystems, includes: Based on the mission capability level and probability information of the non-sinkable system and the mission capability level and probability information of the fire system, the evaluation result of the vitality index is determined. Based on the task capability level and probability information of the power system and the task capability level and probability information of the propulsion system, the evaluation result of the mobility capability index is determined; Based on the mission capability level and probability information of the weapon launch system, the evaluation results of the combat capability indicators are determined.

5. The method for assessing the mission capability of damaged ship equipment according to any one of claims 1-3, characterized in that, The step of determining the damage level probability distribution information of multiple minimum equipment sets corresponding to each ship subsystem based on the damage level probability distribution information of each piece of equipment in each of the ship subsystems includes: Based on the damage level probability distribution information of each piece of equipment in each of the ship subsystems, the damage level probability distribution information of each piece of equipment in each of the minimum equipment sets is determined. Based on the damage level probability distribution information of each piece of equipment in each of the minimum equipment sets and the connection relationship of each piece of equipment in each of the minimum equipment sets, the damage level probability distribution information of multiple minimum equipment sets corresponding to each ship subsystem is determined.

6. A device for assessing the mission capability of damaged ship equipment, characterized in that, include: The first processing module is used to determine the probability distribution information of damage levels of each piece of equipment in each subsystem of the damaged vessel. The second processing module is used to determine the damage level probability distribution information of multiple minimum equipment sets corresponding to each of the ship subsystems based on the damage level probability distribution information of each piece of equipment in each of the ship subsystems. The capability analysis module is used to perform mission capability analysis based on the damage level probability distribution information of each of the minimum equipment sets, and to determine the mission capability level and probability information of each of the ship subsystems. The capability assessment module is used to determine the assessment result of each mission capability index of the damaged vessel based on the mission capability level and probability information of each of the vessel subsystems. The step of performing mission capability analysis based on the damage level probability distribution information of each of the minimum equipment sets to determine the mission capability level and probability information of each of the ship subsystems includes: Based on the damage level probability distribution information of each of the minimum equipment sets, determine the mission capability level and probability information of each of the minimum equipment sets. Based on the mission capability level of each of the aforementioned minimum equipment sets, determine the number of minimum equipment sets with the same mission capability level; Statistical analysis is performed based on the number of minimum equipment sets with the same mission capability level and the probability corresponding to the mission capability level of each minimum equipment set to determine the mission capability level and probability information of each ship subsystem. Specifically, when half or more of all the minimum equipment sets have full mission capability, the corresponding ship subsystem has full mission capability; when more than half of all the minimum equipment sets have lost mission capability, the corresponding ship subsystem has lost mission capability; when less than half of all the minimum equipment sets have full mission capability, or half or less have lost mission capability, the corresponding ship subsystem has basic mission capability.

7. An electronic device, characterized in that, Includes memory and one or more processors; The memory is coupled to the one or more processors, and the memory is used to store computer program code, the computer program code including computer instructions; The one or more processors invoke the computer instructions to cause the electronic device to perform the method as described in any one of claims 1-5.

8. A computer-readable storage medium comprising instructions, characterized in that: When the instructions are executed on an electronic device, the electronic device causes the electronic device to perform the method as described in any one of claims 1-5.

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