A damage analysis method and damage evaluation system based on space-based information

Abstract

This invention relates to a damage analysis method and damage assessment system based on space-based information. The damage analysis method includes: S100, predicting target damage before impact based on case data in a case database; S200, deploying weapons and equipment and conducting target strikes based on the prediction results of step S100; S300, determining post-strike damage based on the pre-strike target damage prediction results; and S400, establishing the relationship between the striking weapon, the striking target, and the damage determination based on a knowledge graph and storing it in the case database. The damage assessment system includes a damage analysis support data maintenance subsystem, a damage analysis operation and maintenance subsystem, a pre-strike target damage prediction subsystem, a satellite reconnaissance data damage determination subsystem, a damage image mapping subsystem, and a damage determination result production subsystem. This invention can standardize the target damage analysis process and standards, and, combined with knowledge graph analysis methods, establish a graph relationship between striking weapons, striking targets, and strike damage conditions for subsequent in-depth data mining, thereby forming a complete damage analysis and assessment system.

Description

Technical Field

[0001] This invention relates to the field of damage analysis, and more specifically to a damage analysis method and damage assessment system based on space-based information. Background Technology

[0002] Target damage effect assessment is a process of comprehensively analyzing and evaluating the effectiveness of fire strikes, taking into account factors such as campaign objectives, battlefield environment, and damage forces. It is a primary basis for implementing fire coordination and adjusting fire strike priorities, and a crucial link in ensuring the successful completion of campaign fire damage missions. Timely and accurate target damage effect assessments not only provide a basis for commanders to make correct decisions but also maximize the optimization of firepower and improve the utilization rate of operational resources.

[0003] With the rapid development of military science and technology, long-range warfare has become one of the main combat modes on the modern battlefield, especially in modern naval warfare, which adopts a strategy of "near-sea defense and far-sea escort." Missiles, as an important component of this strategy, have received vigorous development from countries around the world. Against this backdrop, damage assessment of weapons striking shore-based targets has also become a research hotspot.

[0004] Space reconnaissance is a powerful means of acquiring intelligence from space. With the gradual improvement of space reconnaissance system performance, its application focus has shifted from supporting strategic missions to simultaneously supporting both strategic and tactical missions. Satellite reconnaissance has become a crucial support system directly supporting battlefield operations in local wars under high-tech conditions.

[0005] In today's era of profoundly changing warfare, shore-based targets such as airports are among the most important targets for surprise attacks. The ability to assess the damage to shore-based targets in a timely and accurate manner has a crucial impact on subsequent combat operations. By utilizing space-based information from space reconnaissance, it is possible to obtain timely and accurate imagery of targets after an attack, enabling the assessment of damage effects.

[0006] Space-based information-based shore-based target damage assessment refers to the comprehensive utilization of high spatial and temporal resolution satellite data. Through the extraction of damage features from target images, change detection, and expert knowledge inference, it analyzes the damage effects on the target, providing fundamental information support for land attack command and decision-making. In terms of target damage analysis, after striking a target, it is necessary to conduct reconnaissance of the struck target, extract missile impact points and target damage information, and analyze and evaluate the damage effects to support subsequent operational command and decision-making.

[0007] Target damage assessment under weapon strikes is a complex systemic process based on multidisciplinary knowledge. It refers to determining the impact effect on a target and can be divided into three aspects: warhead damage assessment, target vulnerability analysis, and damage process assessment. The corresponding assessment subjects are the missile warhead, the target being struck, and the interaction between the two. Warhead damage assessment focuses on research into the warhead's destructive capabilities, including damage effectiveness and destructive power. Target vulnerability analysis studies the degree of structural damage or functional loss based on the characteristics of the damaged target. Damage process assessment utilizes numerical simulation, theoretical and methodological evaluation, or field testing to analyze and assess the process from the perspectives of damage mechanisms and influencing factors. The results obtained from these three studies are widely applied in ammunition design optimization, target protection improvement, and operational strategy formulation.

[0008] Regarding damage assessment, scholars have conducted research on target damage effectiveness evaluation based on different focuses. These include discussions on damage assessment methods for weapons and equipment in different scenarios, summarizing weapon damage effectiveness, and reviewing damage assessment methods, tests, systems, and standards for weapons and equipment. For specific target damage, some scholars have summarized and organized general methods and key technologies for assessing the damage effectiveness of missile warheads against complex targets. Clearly, all of the above work summarizes damage assessment methods, approaches, or damage effectiveness assessments within specific scopes, while damage assessment research involves a wide range of areas, making comprehensive reviews difficult to cover.

[0009] A key approach in modern high-tech information warfare is precision destruction, and damage effect assessment has become an indispensable part of modern precision warfare systems.

[0010] In modern naval warfare, timely and effective damage assessment of shore-based targets is crucial for accurately planning subsequent strikes, saving war costs, and improving overall combat effectiveness. With technological advancements, various information gathering methods, such as reconnaissance satellites, reconnaissance aircraft, and missile-borne reconnaissance platforms, have been successfully deployed in warfare. Among these, reconnaissance satellites, with their continuously improving imaging resolution and their advantageous high-altitude location, wide reconnaissance range, strong reconnaissance capabilities, and large information acquisition capacity, have become a vital tool for damage assessment. Therefore, extracting damage information from satellite images is of significant research value.

[0011] Damage assessment methods, as the core of damage assessment models, determine the accuracy, rationality, and simplicity of the target damage assessment process. With the rapid development of science and technology, countries worldwide attach great importance to damage research, continuously improving and exploring new methods, leading to further development of damage assessment methods. Although some scholars have proposed damage effect assessment algorithms, each algorithm is specific to a particular target and lacks universality. Furthermore, existing damage effect assessment methods have some shortcomings: damage effect assessment based on image change detection has high requirements for image matching and radiometric correction. Bayesian network methods suffer from problems such as sample data defects and difficulties in selecting and mining hidden information from sample data. Fuzzy comprehensive evaluation methods cannot solve the problem of redundant evaluation caused by mutual evaluation indicators, and lack a definitive method for expert scoring and membership function selection.

[0012] The upgrading of military technology and functional requirements has led to increasingly complex and diverse targets. Studying the extent of damage to these targets requires consideration of numerous factors, including how to select appropriate methods for damage assessment, how to determine and classify the degree of damage, and how to integrate damage assessment factors to provide a scalable damage assessment framework. Existing damage assessment methods lack systematic operational procedures and evaluation standards. For the same target damage situation, different or identical data and different operators may yield different damage assessment conclusions. Therefore, the current assessment of target damage effects lacks a complete and standardized system and requires further exploration. Summary of the Invention

[0013] In view of this, the present invention proposes a damage analysis method and damage assessment system based on space-based information, standardizes the target damage analysis process and standards, and combines knowledge graph analysis methods to establish a graph relationship between the weapon, the target, and the damage situation, so as to provide for subsequent in-depth data mining, thereby forming a complete damage analysis and assessment system.

[0014] In a first aspect, embodiments of the present invention provide a damage analysis method based on space-based information, the damage analysis method comprising:

[0015] S100, based on case data in the case library, makes a pre-strike damage prediction of the target;

[0016] S200: Based on the prediction results of step S100, deploy weapons and equipment and carry out target strikes;

[0017] S300, based on the result of the target damage prediction before the attack, determine the damage after the attack on the target;

[0018] S400: Establish the relationship between the weapon, the target, and the damage determination based on the knowledge graph and store it in the case library.

[0019] Further, step S100 includes:

[0020] S110, access target information and fire information, and store the target information in the target database and the fire information in the fire plan database;

[0021] S120, perform pre-strike learning based on the target information, the firepower information, and the case data;

[0022] S130, based on the results of the pre-strike learning, make a pre-strike target damage prediction.

[0023] Furthermore, in step S200, the target is a shore-based target.

[0024] Further, step S300 includes:

[0025] S310, Extract satellite image data of the target before and after the attack;

[0026] S320, Register the satellite imagery data before and after the attack, and extract the region of interest;

[0027] S330, target detection is performed on the satellite image data before the target strike and the satellite image data after the target strike, and the feature information of the corresponding target is extracted;

[0028] S340, determine the target damage level based on the feature information.

[0029] Furthermore, after step S340, the following steps are also included:

[0030] S350, manually verify the determination result of the damage level of the target and score it.

[0031] In a second aspect, embodiments of the present invention provide a damage assessment system based on space-based information, used for the damage analysis method based on space-based information as described in any one aspect, the damage assessment system comprising:

[0032] The damage analysis support data maintenance subsystem is used to maintain data preparation for pre-strike target impact data, fire plan information, weapon effect information, target information, and post-strike target intelligence data.

[0033] The damage analysis operation and maintenance subsystem is used for task distribution, process monitoring, and result maintenance of target damage analysis.

[0034] The pre-strike target damage prediction subsystem is used for pre-strike damage analysis, reconnaissance and intelligence planning, maintaining damage analysis case knowledge, and conducting damage simulation according to the combat plan, so as to realize pre-strike intelligence planning, case learning and comparison and damage simulation prediction.

[0035] The satellite reconnaissance data damage assessment subsystem is used for image positioning and measurement, image enhancement, image editing and damage extraction, as well as assisting in image damage assessment and processing. It performs filtering on satellite images, rapid damage extraction and acquisition of target damage information, and uses satellite visible light images to extract damage results to determine missile impact point and damage status.

[0036] The damage image interpretation subsystem provides tools for image measurement and annotation, interpreting target damage and missile impact points, as well as damage image interpretation and plotting.

[0037] The damage assessment results production subsystem is used to generate damage assessment results information based on the assessment results of damage images.

[0038] Furthermore, in the damage image interpretation and mapping subsystem, the damage image interpretation and mapping adopts image edge extraction, automatic segmentation and damage mapping technology, and realizes the analysis, measurement, interpretation and damage mapping of target damage based on prior information, which includes target damage characteristics and damage effect data.

[0039] Furthermore, the damage assessment result production subsystem adopts template configuration and automatic text report generation technology. The damage assessment result information includes a target damage thematic map generated based on the target damage vector, impact point assessment result, post-attack image, and damage thematic map template file, and performs damage editing, marking the impact point offset and missile trajectory information.

[0040] The embodiments of this invention relate to damage analysis methods and damage assessment systems, which help to standardize target damage analysis processes and standards. By combining knowledge graph analysis methods, a graph relationship between attack weapons, attack targets, and damage conditions can be established for subsequent in-depth data mining, thereby forming a complete damage analysis and assessment system. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This is a schematic diagram of the damage assessment system according to an embodiment of the present invention;

[0043] Figure 2 This is a schematic flowchart of the damage analysis method according to an embodiment of the present invention;

[0044] Figure 3 This is a schematic diagram of a sub-process of the damage analysis method according to an embodiment of the present invention;

[0045] Figure 4 This is a schematic diagram of another sub-process of the damage analysis method according to an embodiment of the present invention;

[0046] Figure 5 This is a schematic diagram illustrating the principle of damage prediction before impact according to an embodiment of the present invention;

[0047] Figure 6 This is a schematic diagram illustrating the principle of target damage determination in an embodiment of the present invention;

[0048] Figure 7 This is a schematic diagram illustrating the principle of knowledge graph analysis in an embodiment of the present invention. Detailed Implementation

[0049] The description of the embodiments in this specification should be taken in conjunction with the accompanying drawings, which should form part of the complete specification. In the drawings, the shape or thickness of the embodiments may be exaggerated and may be indicated in a simplified or convenient manner. Furthermore, parts of the various structures in the drawings will be described separately; it is worth noting that elements not shown in the figures or not described in words are in a form known to those skilled in the art.

[0050] The descriptions of the embodiments herein, including any references to directions and orientations, are for ease of description only and should not be construed as limiting the scope of the invention. The following description of preferred embodiments involves combinations of features, which may exist independently or in combination; the invention is not particularly limited to the preferred embodiments. The scope of the invention is defined by the claims.

[0051] like Figure 1 The diagram shown is a schematic of a space-based information-based damage assessment system according to an embodiment of the present invention. The damage assessment system includes a damage analysis support data maintenance subsystem, a damage analysis operation and maintenance subsystem, a pre-strike target damage prediction subsystem, a satellite reconnaissance data damage determination subsystem, a damage image mapping subsystem, and a damage determination result production subsystem.

[0052] The damage analysis support data maintenance subsystem is used to maintain data preparation for pre-strike target impact data, fire plan information, weapon effect information, target information, and post-strike target intelligence data.

[0053] The damage analysis operation and maintenance subsystem is used for task distribution, process monitoring, and result maintenance of target damage analysis.

[0054] The pre-strike target damage prediction subsystem is used for pre-strike damage analysis, reconnaissance and intelligence planning, maintaining damage analysis case knowledge, and conducting damage simulation based on the combat plan, thereby realizing pre-strike intelligence planning, case learning and comparison, and damage simulation prediction.

[0055] The satellite reconnaissance data damage assessment subsystem provides tools for image positioning and measurement, image enhancement, image editing, and damage extraction to assist in image damage assessment and processing. It filters satellite images, quickly extracts damage, and obtains target damage information. It uses satellite visible light images to extract damage results and determine missile impact points and damage conditions.

[0056] The damage image interpretation and mapping subsystem provides image measurement and annotation tools through visual interpretation methods to quickly interpret target damage and missile impact points, as well as damage image interpretation and mapping. The damage image interpretation and mapping adopts image edge extraction, automatic segmentation and damage mapping technology. Based on prior information, it realizes the analysis, measurement, interpretation and damage mapping of target damage. The prior information includes target damage characteristics and damage effect data.

[0057] The damage assessment results production subsystem employs technologies such as template configuration and automatic text report generation to rapidly produce damage assessment results based on damage image mapping results. The target damage thematic map production subsystem is primarily responsible for quickly generating damage thematic maps based on target damage vectors, impact point assessment results, post-impact images, and damage thematic map template files. It also performs damage editing and annotates information such as impact point offset and missile trajectory. The target damage report production subsystem, based on missile flight detection, impact point prediction, and damage image mapping results, rapidly generates target physical damage reports according to pre-selected report templates.

[0058] like Figures 2-4 The diagram illustrates a second embodiment of a space-based information-based damage analysis method of the present invention, implemented based on the damage assessment system of the first embodiment. The damage analysis method includes:

[0059] S100, based on case data in the case library, makes a pre-strike damage prediction of the target;

[0060] S200: Based on the prediction results of step S100, deploy weapons and equipment and carry out target strikes;

[0061] S300, based on the result of the target damage prediction before the attack, determine the damage after the attack on the target;

[0062] S400: Establish the relationship between the weapon, the target, and the damage determination based on the knowledge graph and store it in the case library.

[0063] Specifically, in this embodiment, step S100 includes:

[0064] S110, access target information and fire information, and store the target information in the target database and the fire information in the fire plan database;

[0065] S120, perform pre-strike learning based on the target information, the firepower information, and the case data;

[0066] S130, based on the results of the pre-strike learning, make a pre-strike target damage prediction.

[0067] In this embodiment, step S300 includes:

[0068] S310, Extract satellite image data of the target before and after the attack;

[0069] S320, Register the satellite imagery data before and after the attack, and extract the region of interest;

[0070] S330, target detection is performed on the satellite image data before the target strike and the satellite image data after the target strike, and the feature information of the corresponding target is extracted;

[0071] S340, determine the target damage level based on the feature information.

[0072] In this embodiment, after step S340, the following steps are also included:

[0073] S350, manually verify the determination result of the target damage level and give a determination score.

[0074] Following step S400, the newly added data in the case library includes information on the weapons used in this strike, the target information, and damage assessment data, which helps in learning damage prediction before the next strike. In the next strike, the case library, target library, and fire plan library are used as the learning basis for pre-strike damage prediction. Furthermore, the data in the case library is knowledge graph relational data, which provides strong data support for pre-strike prediction. Figure 7 As shown, a knowledge graph is used to establish relationships between information such as weapons and targets during the strike process and store them in a database. Knowledge graphs are a crucial cornerstone of artificial intelligence, attracting widespread attention due to their rich graph structure and attribute information. Knowledge graphs can accurately semantically describe various entities and their relationships in the real world, where vertices represent entities and edges represent relationships between entities. Knowledge graph partitioning is the primary task in large-scale distributed knowledge graph processing, providing fundamental support for distributed storage, querying, reasoning, and mining of knowledge graphs.

[0075] In summary, the embodiments of the present invention relate to damage analysis methods and damage assessment systems, which help to standardize target damage analysis processes and standards. By combining knowledge graph analysis methods, a graph relationship between striking weapons, striking targets, and damage conditions can be established for subsequent in-depth data mining, thereby forming a complete damage analysis and assessment system.

[0076] Furthermore, the damage analysis method and damage assessment system of this invention can be applied to the damage analysis and assessment of strikes against fixed ground targets. It should be understood that the fixed ground targets include, but are not limited to, shore-based targets or inland targets.

[0077] The damage assessment system and damage analysis method of this invention, taking the target as a shore-based target (including but not limited to airports, ports, etc.) as an example, will be described in detail below:

[0078] To address the need for analyzing the damage effects of strikes against land-based targets, this method utilizes panchromatic and multispectral imagery from high-resolution satellites. Based on the timing of the strike operation and operational plan data, it measures the images of land-based targets before and after the strike, extracts missile impact points and target damage information, quantifies physical damage parameters, determines the damage range and severity, and generates a land-based target damage analysis report.

[0079] The workflow of the shore-based strike target damage analysis subsystem is divided into two parts: pre-strike target damage prediction and post-strike target damage determination.

[0080] like Figure 5 As shown, before a missile strike, target and fire information is accessed and stored in the target database and fire plan database. Simultaneously, a case database is formed by combining existing strike case data for pre-strike learning. Technologies such as multi-information association retrieval and pattern mapping are employed to enable rapid querying, retrieval, updating, and application of interpretation knowledge, achieving rapid damage information interpretation with the assistance of the interpretation knowledge base.

[0081] like Figure 6 As shown, after a missile strike, using rapidly acquired satellite images, the target area image is first cropped based on the target location. Then, based on the target reference image, rapid geometric correction of the target image is performed. When fire plan information is available, the target vector and fire information are overlaid, and the impact point of each missile is determined and automatically plotted. If there is no fire information, only the target vector is overlaid, and the impact point of each sub-target is determined and automatically labeled. Physical damage parameters are quantified, and target physical damage indices are calculated. Finally, based on the template, the thematic map and the determination report are produced.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for damage analysis based on space-based information, characterized in that, The damage analysis method comprises: S100, making a pre-attack target damage prediction according to case data in a case library, comprising: S110, accessing target information and fire information, and storing the target information in a target library and the fire information in a fire plan library; S120, learning before the attack according to the target information, the fire information and the case data; S130, making the pre-attack target damage prediction according to a result of the pre-attack learning; S200, deploying weapon equipment and implementing target attack according to a prediction result of step S100; S300, making a post-attack damage determination according to a result of the pre-attack target damage prediction, comprising: S310, extracting satellite image data of the target before and after the attack; S320, registering the satellite image data before and after the attack, and extracting a region of interest; S330, respectively performing target detection on the satellite image data of the target before and after the attack, and extracting feature information of the corresponding target; S340, determining a target damage level according to the feature information; S400, establishing a relationship between a striking weapon, a striking target and the damage determination according to a knowledge graph and storing the relationship in the case library.

2. The space-based information based damage assessment method of claim 1, wherein, In step S200, the target is a shore-based target.

3. The space-based information based damage assessment method of claim 1, wherein, After step S340, further comprising: S350, manually checking a determination result of the target damage level and scoring.

4. A space-based information based damage assessment system for the space-based information based damage analysis method according to any one of claims 1 to 3, characterized in that The damage assessment system comprises: A damage analysis support data maintenance subsystem for maintaining data preparation of pre-attack target influence data, fire plan information, weapon effect information and target information, and post-attack target intelligence data; A damage analysis operation and maintenance subsystem for task distribution, process monitoring and result maintenance of target damage analysis; A pre-attack target damage prediction subsystem for pre-attack damage analysis reconnaissance intelligence planning, maintaining damage analysis case knowledge, and damage simulation according to a combat plan to realize pre-attack intelligence planning, case learning and comparison and damage simulation estimation; A satellite reconnaissance data damage determination subsystem for image positioning and measurement, image enhancement, image editing and damage extraction, and auxiliary image damage interpretation processing, filtering processing, damage rapid extraction and target damage acquisition of satellite images, damage extraction result using satellite visible light images, determination of missile drop point and damage situation; A damage image determination and drawing subsystem for providing an image measurement and labeling interpretation tool, interpreting target damage and missile drop point, and damage image interpretation and mapping; A damage determination result production subsystem for forming damage determination result information according to damage image determination and drawing results.

5. The space-based information based damage assessment system of claim 4, wherein, In the damage image determination and drawing subsystem, the damage image interpretation and mapping adopts image edge extraction, automatic segmentation and damage mapping technology, and realizes target damage situation analysis, measurement, interpretation and damage mapping according to prior information, wherein the prior information comprises target damage characteristics and damage effect data.

6. The space-based information based damage assessment system according to claim 4, wherein, The damage assessment result making subsystem adopts template configuration and text report automatic generation technology, and the damage assessment result information includes target damage thematic map generated according to target damage vector, impact point assessment result, post-attack image and damage thematic map template file, and damage editing, impact point offset and missile shooting direction information are marked.

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