A method for analyzing and verifying the functional vulnerability of electronic targets
Through functional module partition coding and functional damage tree analysis, the structure and function equivalent targets are designed, combined with damage parameter characterization and embedded online testing, the problem of functional vulnerability analysis and verification of electronic targets is solved, and system verification and real-time are realized Monitoring meets the need for efficient analysis of the vulnerability of electronic target functions.
Patent Information
- Application Number
- CN202410724883.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2044-06-05
AI Technical Summary
The existing technology is difficult to effectively analyze and verify the functional vulnerability of electronic targets, and lacks equivalent targets and design methods that can comprehensively simulate the real target structure, function, cascade and functional damage characteristics, resulting in the inability to systematically verify the theoretical analysis results. .
The functional module partition coding, functional damage tree analysis, structural and functional equivalent target design, damage parameter characterization and embedded online testing methods are adopted to establish a functional vulnerability model and damage test and real-time monitoring through equivalent targets. Verify the effectiveness of functional vulnerability analysis methods and models.
System verification of the vulnerability analysis of electronic target functions is realized, and the damage response can be monitored and evaluated in real time, and the vulnerability at different functional damage levels is solved, which is difficult to verify in the prior art.
Smart Images
Figure CN118627287B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of equipment target vulnerability analysis, and in particular to a method for analyzing and verifying the functional vulnerability of an electronic target. Background Art
[0002] The vulnerability analysis of electronic targets is an important prerequisite for conducting damage assessment of weapon and equipment targets. In the past, the research on the vulnerability of weapon and equipment targets mainly relied on methods such as structural vulnerability theoretical analysis and numerical simulation, and designed structural equivalent targets based on the principle of structural equivalence, and carried out damage tests on them to verify the effectiveness of the structural vulnerability analysis results.
[0003] Electronic targets in weapons and equipment have relatively complex circuit functions. Only theoretical analysis and numerical simulation of the structural vulnerability of the target can no longer meet the current research requirements. Researchers have gradually explored the use of other methods to analyze the functional vulnerability of electronic targets and have achieved some research results. In order to further study the functional damage characteristics of electronic targets, researchers have built some simple functional equivalent targets and carried out relevant damage tests. In the past, when conducting damage tests on electronic targets, the functional damage data of the target was often obtained by performing simple functional tests or judging the good or bad functions of the targets after the test. For example, by observing whether the target can complete the specified function after the restart test or by observing the indicator light that characterizes the good or bad functions to judge the damage to the target function. In this way, the functional damage data of the target part with different degrees of damage cannot be obtained, and the target functional response and damage parameters cannot be monitored synchronously in real time, and the target functional vulnerability analysis results cannot be systematically and effectively verified. There is a lack of an equivalent target and its design method that can comprehensively simulate the structure, function, cascade and functional damage characteristics of the real target.
[0004] At present, the verification of the functional vulnerability analysis method of electronic targets is mainly completed by comparing the theoretical analysis results of different methods on examples under some hypothetical conditions. There is a lack of methods for systematic functional vulnerability verification of physical objects, and it is difficult to effectively verify the functional vulnerability of targets whose functional damage states cannot be determined by theoretical analysis. To this end, this application proposes a method for analyzing and verifying the functional vulnerability of electronic targets. Summary of the invention
[0005] The purpose of the present invention is to solve the shortcomings existing in the prior art, and a method for analyzing and verifying the functional vulnerability of electronic targets is proposed. Through the organic integration of functional vulnerability modeling based on functional module partition coding, structural and functional equivalent target design based on functional damage tree analysis, damage parameter characterization and embedded online testing method, the vulnerability modeling and verification of electronic targets are completed, and the problem of difficulty in establishing and verifying functional vulnerability models of electronic targets is solved.
[0006] In order to achieve the above object, the present invention adopts the following technical solutions:
[0007] A method for analyzing and verifying the functional vulnerability of an electronic target comprises the following steps:
[0008] Step 1: Partition, encode, and sort the importance of the target structure and function, and establish a functional damage tree model of functional topology and different functional damage types in each functional partition;
[0009] Step 2: Study the damage criteria and damage judgment criteria of different functional areas of the target under the action of fragments and impact, and establish the corresponding functional vulnerability model;
[0010] Step 3: Based on the functional damage tree, construct a structural and functional equivalent target with real target structure, function, cascade characteristic simulation and functional damage feedback capabilities;
[0011] Step 4: Use the same method to conduct functional vulnerability analysis of equivalent targets;
[0012] Step 5: Based on the target structure and functional equivalent targets and their functional damage tree, select the measurement points that characterize the damage parameters and build a test system that can achieve damage effect characterization and embedded online operation status monitoring;
[0013] Step 6: Carry out damage tests under different working conditions under the real-time working state of the equivalent target, and conduct online testing and evaluation of the damage effect of the equivalent target function;
[0014] Step 7: Compare the measured results of the equivalent target damage test with the results of the equivalent target functional vulnerability analysis, iteratively optimize the equivalent target and vulnerability model, and verify the effectiveness of the functional vulnerability analysis method and vulnerability model.
[0015] Preferably, in step 1, the method for establishing the target function damage tree model is as follows:
[0016] According to the working principle and functional characteristics of the target, the target functions are partitioned, and according to the sensitivity of different components to damage, the vulnerable areas and key components of each functional partition of the target are determined; each functional partition and internal component are sorted, scored, and weighted according to the functional importance, and different functional partitions and components are encoded so that each component has a unique identification; according to the signal transmission characteristics of the real target, the functional topological relationship of each functional partition and internal component is established; the component codes of each functional partition are arbitrarily combined and arranged, and the damage effect of the failure of these code combinations on the function is analyzed, and all possible damage modes of each functional partition and the logical relationship between the failure and damage mode of the underlying component are determined; finally, according to the damage mode category of each functional partition and the logical connection relationship between each coded component, a functional damage tree of different functional damage types of each functional partition is established.
[0017] Preferably, in step 3, the design method of the target structure and functional equivalent target is as follows:
[0018] For structural equivalence, the real target structure is partitioned according to the non-uniform and multi-level structural characteristics of the target, and each structural partition is meshed; based on the principle of equivalent anti-ballistic energy, the material and thickness of each structural partition mesh are allocated; based on the principle of equivalent dynamic response characteristics, the connection mode of each structural partition mesh, the layout and constraint form of the circuit board components are optimized to control the dynamic response amplitude of each structural mesh in the equivalent target;
[0019] For functional equivalence, based on the functional partitioning and functional topological relationship of the real target, the target equivalent circuit network is established, the electrical characteristic curve of the real target is learned by using a neural network, and the circuit function parameters of each functional partition are identified and screened; based on the functional characteristics and cascade characteristic equivalent principle, the target equivalent circuit network is simplified by reducing the order, and the corresponding functional circuit is designed to reduce the complexity of the target function, so that the equivalent target has the function of functional damage feedback;
[0020] On this basis, the equivalent target body is equipped with the capability of damage parameter characterization and embedded online testing and evaluation through the embedded dynamic parameter and functional parameter test modules. Finally, the components are arranged, combined and connected according to the functional topological relationship of the target and installed into the equivalent target structure, forming a structural and functional equivalent target that organically integrates the target structure and functional characteristic simulation, functional damage feedback and online evaluation capabilities.
[0021] Preferably, in step six, the damage parameter characterization and embedded online testing and evaluation method are as follows:
[0022] Based on the target structure and functional equivalent targets and their functional damage tree, the functional indicators of each functional partition are decomposed and sorted according to the correlation between each functional indicator and functional damage. The functional damage degree is characterized by the functional indicators with strong correlation, and a functional damage state assessment model based on multi-parameter perception is established; through the real-time acquisition of external measuring points and dynamic parameter measuring points of the equivalent target embedded circuit, the dynamic parameter response and functional parameter response of the equivalent target are monitored online, and the transient response and steady-state response of the equivalent target from the time of being hit or just beginning to be subjected to the impact load during the dynamic measurement test are evaluated, and the transient response and steady-state response values are combined to evaluate the equivalent under-strike state. The damage degree of the target and the completion of the task can avoid ignoring the situation where some tasks are not completed during the strike because the equivalent target function returns to normal after the test; by comparing the transient signal of the dynamic parameter and the circuit function response, the synchronous comparison of the dynamic parameter and the damage response and the analysis of the circuit function damage mechanism can be completed to avoid the misinterpretation of the damage parameters that cause circuit function damage; the characteristic values of each test node per unit time are extracted online, and these characteristic values are classified and encoded according to the functional partition according to the measurement point location, and the degree of circuit function damage is evaluated online through the characteristic values of each parameter according to the corresponding functional damage criteria.
[0023] Preferably, in step seven, the method for conducting the damage test and verifying the results is as follows:
[0024] Based on the damage criteria, damage rules and damage modes of equivalent targets, the test conditions and functional damage states corresponding to the equivalent targets are determined, and verification tests of different test conditions are systematically carried out for equivalent targets working in real time. Through the functional vulnerability analysis method and the established functional vulnerability model of equivalent targets, the functional vulnerability of the equivalent targets under the damage of different test conditions is predicted. According to the comparison between the measured results of the damage test and the predicted results of the vulnerability model, the equivalent targets and the vulnerability model are iteratively optimized. Finally, the effectiveness of the functional vulnerability analysis method and the vulnerability model is verified.
[0025] By adopting the above technical scheme: decomposing the target structure and function, and establishing the corresponding functional damage tree model; building a structural and functional equivalent target with the functional cascade connection characteristics of the real target based on the functional damage tree; carrying out the same functional vulnerability analysis on the equivalent target function as the real target, and using the damage parameter and functional parameter test module to synchronously monitor the damage parameters and functional parameter responses of the equivalent target in real time; and completing the verification of the vulnerability analysis method and analysis results of the real target by comparing the measured results of the equivalent target damage test with the vulnerability analysis results.
[0026] Compared with the prior art, the present invention has the following beneficial effects:
[0027] 1. The present invention can systematically verify the functional vulnerability analysis method and vulnerability model of electronic targets, and can systematically analyze the functional damage tree of electronic targets according to functional partitions, thus solving the problem that ordinary equivalent targets are difficult to meet the verification test requirements.
[0028] 2. The present invention can simultaneously monitor the damage response of equivalent targets in a working state in real time and perform online evaluation of the functional damage status.
[0029] 3. The present invention can systematically verify the vulnerability of target functions under various functional damage conditions, such as different functional damage degrees and different component damage states. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 is a flow chart of the present invention;
[0031] Figure 2 A flow chart of the method for modeling the functional damage tree of electronic targets in the present invention;
[0032] Figure 3 A schematic diagram of a damage tree for an audio function of a communication station according to an embodiment of the present invention;
[0033] Figure 4 The figure is a flow chart of the method for designing electronic target structures and functionally equivalent targets in the present invention. DETAILED DESCRIPTION
[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings, so that those skilled in the art can better understand the advantages and features of the present invention, thereby making a clearer definition of the protection scope of the present invention. The embodiments described in the present invention are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present invention.
[0035] Reference Figure 1 , is a flow chart of the present invention, a method for analyzing and verifying the vulnerability of electronic target functions, comprising the following steps:
[0036] Step 1: Establish a functional damage tree model corresponding to the target. Partition the target functions according to the working principle and functional characteristics of the target. According to the sensitivity of different components to damage, determine the vulnerable areas and key components of each functional partition of the target, sort, score, and assign weights to each functional partition and internal component according to the importance of the function, and encode different functional partitions and components so that each component has a unique identifier. According to the signal transmission characteristics of the real target, establish the functional topological relationship between each functional partition and internal component. Arrange the component codes of each functional partition in any combination, analyze the damage effect of the failure of these code combinations on the function, and determine all possible damage modes of each functional partition and the logical relationship between the failure and damage mode of the underlying components. Finally, according to the damage mode category of each functional partition and the logical connection relationship between each coding component, a functional damage tree of different functional damage types of each functional partition is established.
[0037] Reference Figure 2 , which is a flow chart of the electronic target functional damage tree modeling method of the present invention.
[0038] In order to verify the functional vulnerability of electronic targets, an embodiment of the present invention provides an electronic target functional vulnerability analysis and verification method, wherein the electronic target may be a communication radio, a fire control computer, a radar, etc.; specifically, the embodiment of the present invention does not limit this.
[0039] When analyzing the damage characteristics of target functions, it is necessary to determine the key components and units that affect the damage to target functions; taking a communication radio as an example, its key components include transceivers, RF power amplifiers, frequency hopping units, confidentiality units, audio units, control units, etc. Its main functions include transceiver function, frequency hopping function, confidentiality function, audio function, control function, etc. Among them, the audio function has four damage modes: voice quality degradation, audio can be input but cannot be output, audio can be output but cannot be input, and the audio function is completely damaged. Figure 3 Destroys the tree for audio functions that can input audio but cannot output audio.
[0040] Step 2: Study the damage criteria and damage judgment criteria of different functional partitions of the target under the action of fragments and impact, and establish the corresponding functional vulnerability model.
[0041] Step 3: Based on the functional damage tree, construct structural and functional equivalent targets with real target structure, function, cascade characteristic simulation and functional damage feedback capabilities.
[0042] For structural equivalence, the real target structure is partitioned according to the non-uniform and multi-level structural characteristics of the target, and each structural partition is meshed. Based on the principle of equivalent anti-ballistic energy, the material and thickness of each structural partition mesh are allocated. Based on the principle of equivalent dynamic response characteristics, the connection mode of each structural partition mesh, the layout and constraint form of the circuit board components are optimized to control the dynamic response amplitude of each structural mesh in the equivalent target.
[0043] For functional equivalence, based on the functional partitioning and functional topological relationship of the real target, a target equivalent circuit network is established, and the electrical characteristic curve of the real target is learned using a neural network. The circuit function parameters of each functional partition are identified and screened. Based on the principle of equivalence of functional characteristics and cascade characteristics, the target equivalent circuit network is simplified by reducing the order, and the corresponding functional circuit is designed to reduce the complexity of the target function, so that the equivalent target has the function of functional damage feedback.
[0044] On this basis, the equivalent target body is equipped with the capability of damage parameter characterization and embedded online testing and evaluation through the embedded dynamic parameter and functional parameter test modules. Finally, the components are arranged, combined and connected according to the functional topological relationship of the target and installed into the equivalent target structure, forming a structural and functional equivalent target that organically integrates the target structure and functional characteristic simulation, functional damage feedback and online evaluation capabilities.
[0045] Figure 4 A schematic flow chart of a method for designing an electronic target structure and functional equivalent target provided in an embodiment of the present invention.
[0046] Taking a communication radio as an example, the equivalent target mainly simulates its communication function. In addition, it is also necessary to simulate the signal link transmission characteristics between the real target components, such as the signal transmission between the communication function module and the voice function module. The communication function and voice function simulated by the equivalent target need to have functional impairment characteristics similar to those of the real target, such as increased bit error rate and decreased voice quality.
[0047] Step 4: Use the same method to conduct functional vulnerability analysis of equivalent targets.
[0048] In order to verify the functional vulnerability analysis method and vulnerability model of real targets, before conducting experimental research on equivalent targets, it is necessary to conduct functional vulnerability analysis on equivalent targets according to the same functional vulnerability analysis method, analysis process, and damage conditions.
[0049] Step 5: Based on the target structure and functional equivalent targets and their functional damage tree, select measurement points that characterize damage parameters and establish a test system that can achieve damage effect characterization and embedded online operation status monitoring. Based on the target structure and functional equivalent targets and their functional damage tree, decompose the functional indicators of each functional partition, sort them according to the correlation between each functional indicator and functional damage, characterize the degree of functional damage by the functional indicators with strong correlation, and establish a functional damage status assessment model based on multi-parameter perception. Through the real-time acquisition of external measurement points and dynamic parameter measurement points of the equivalent target embedded circuit, the dynamic parameter response and functional parameter response of the equivalent target are monitored online, and the transient response and steady-state response of the equivalent target from the time of impact or the beginning of impact load during the dynamic measurement test are evaluated. Combined with the transient response and steady-state response values, the damage degree and task completion status of the equivalent target under the impact are evaluated to avoid ignoring the situation where some tasks are not completed during the impact process because the equivalent target function returns to normal after the end of the test. By comparing the transient signals of dynamic parameters with the functional response of the circuit, the synchronous comparison of dynamic parameters and damage response and the analysis of circuit functional damage mechanism are completed to avoid misinterpretation of damage parameters that cause circuit functional damage.
[0050] Step six: Carry out damage tests under different working conditions under the real-time working state of the equivalent target, and conduct online testing and evaluation of the functional damage effect of the equivalent target. Based on the damage judgment criteria, damage criteria, and damage mode of the equivalent target, determine the test conditions and functional damage status corresponding to the equivalent target, and systematically carry out verification tests of different test conditions for the equivalent target working in real time. Online extract the characteristic values of each test node per unit time, classify and encode these characteristic values according to the location of the measurement point and the functional partition, and conduct online evaluation of the degree of circuit functional damage through the characteristic values of each parameter according to the corresponding functional damage criteria.
[0051] Step 7: Compare the measured results of the equivalent target damage test with the results of the equivalent target functional vulnerability analysis, iteratively optimize the equivalent target and vulnerability model, and verify the effectiveness of the functional vulnerability analysis method and vulnerability model. Through the functional vulnerability analysis method and the established equivalent target functional vulnerability model, the functional vulnerability of the equivalent target under the damage of different test conditions is predicted. According to the comparison between the measured results of the damage test and the predicted results of the vulnerability model, the equivalent target and vulnerability model are iteratively optimized. Finally, the effectiveness of the functional vulnerability analysis method and vulnerability model is verified.
[0052] In summary, the present invention can synchronously monitor the damage response of equivalent targets in a working state in real time and perform online evaluation of the functional damage status; it can systematically verify the target functional vulnerability under various functional damage conditions such as different functional damage degrees and different component damage states.
[0053] The description and practice disclosed in the present invention are easy to think and understand for ordinary technicians in the technical field, and several improvements and modifications can be made without departing from the principles of the present invention. Therefore, modifications or improvements made without departing from the spirit of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A method for analyzing and verifying the functional vulnerability of electronic targets, characterized in that: The following steps are involved: Step 1: Partition, encode, and sort the target according to its structure and function, and establish a target function damage tree model with functional topological relationships and different functional damage types for each functional partition; Step 2: Study the damage criteria and damage judgment criteria of different functional areas of the target under the action of fragments and impact, and establish the corresponding functional vulnerability model; Step 3: Based on the target functional damage tree model, build a target structure and functional equivalent target with real target structure, function, cascade characteristic simulation and functional damage feedback capabilities; Step 4: Use the same method to conduct functional vulnerability analysis of equivalent targets; Step 5: Based on the target structure and functional equivalent targets and their target function damage tree model, select the measurement points that characterize the damage parameters and build a test system that can achieve damage effect characterization and embedded online operation status monitoring; Step 6: Carry out damage tests under different working conditions under the real-time working state of the equivalent target, and conduct online testing and evaluation of the damage effect of the equivalent target function; Step 7: Compare the measured results of the equivalent target damage test with the results of the equivalent target functional vulnerability analysis, iteratively optimize the equivalent target and the vulnerability model, and verify the effectiveness of the functional vulnerability analysis method and the vulnerability model; In step 1, the method of establishing the target function damage tree model is as follows: According to the working principle and functional characteristics of the target, the target functions are partitioned, and according to the sensitivity of different components to damage, the vulnerable areas and key components of each functional partition of the target are determined; each functional partition and internal component are sorted, scored, and weighted according to the functional importance, and different functional partitions and components are encoded so that each component has a unique identifier; according to the signal transmission characteristics of the real target, the functional topological relationship of each functional partition and internal component is established; the component codes of each functional partition are arbitrarily combined and arranged, and the damage effect of the failure of these code combinations on the function is analyzed, and all possible damage modes of each functional partition and the logical relationship between the failure and damage mode of the underlying component are determined; finally, according to the damage mode category of each functional partition and the logical connection relationship between each coding component, a target function damage tree model with different functional damage types of each functional partition is established; In step 3, the design method of target structure and functional equivalent targets is as follows: For structural equivalence, the real target structure is partitioned according to the non-uniform and multi-level structural characteristics of the target, and each structural partition is meshed; based on the principle of equivalent anti-ballistic energy, the material and thickness of each structural partition mesh are allocated; Based on the principle of equivalent dynamic response characteristics, the connection mode of each structural partition grid, the layout and constraint form of the circuit board components are optimized to control the dynamic response amplitude of each structural grid in the equivalent target; For functional equivalence, based on the functional partitions and functional topological relationships of the real target, a target equivalent circuit network is established, and the electrical characteristic curves of the real target are learned using a neural network to identify and screen the circuit function parameters of each functional partition. Based on the functional characteristics and cascade characteristic equivalent principle, the target equivalent circuit network is simplified by reducing the order state, and the corresponding functional circuit is designed to reduce the complexity of the target function so that the equivalent target can have the function of functional damage feedback; On this basis, through the embedded dynamic parameter and functional parameter testing modules, the equivalent target body is equipped with the ability of damage parameter characterization and embedded online testing and evaluation; finally, the components are arranged, combined and connected according to the functional topological relationship of the target, and installed into the equivalent target structure to form a target structure and functional equivalent target that organically integrates target structure and functional characteristic simulation, functional damage feedback, and online evaluation capabilities.
2. The method for analyzing and verifying the functional vulnerability of electronic targets according to claim 1, characterized in that: In step six, the damage parameter characterization and embedded online testing and evaluation methods are as follows: Based on the target structure and functional equivalent target and its target functional damage tree model, the functional indicators of each functional partition are decomposed and sorted according to the correlation between each functional indicator and functional damage. The functional damage degree is characterized by the functional indicators with strong correlation, and a functional damage state assessment model based on multi-parameter perception is established; through the real-time acquisition of external measuring points and dynamic parameter measuring points of the equivalent target embedded circuit, the dynamic parameter response and functional parameter response of the equivalent target are monitored online. During the dynamic measurement test, the transient response and steady-state response of the equivalent target from the time of being hit or just beginning to be subjected to the impact load are measured, and the impact under the impact is evaluated by combining the transient response and steady-state response values. The damage degree and task completion status of the equivalent target can avoid ignoring the situation where some tasks are not completed during the strike process because the function of the equivalent target has returned to normal after the test; by comparing the transient signal of the dynamic parameter and the circuit function response, the synchronous comparison of the dynamic parameter and the damage response and the analysis of the circuit function damage mechanism can be completed to avoid the misinterpretation of the damage parameters that cause circuit function damage; the characteristic values of each test node per unit time are extracted online, and these characteristic values are classified and encoded according to the position of the measuring point and the functional partition. According to the corresponding functional damage criteria, the degree of circuit function damage is evaluated online through the characteristic values of each parameter.
3. The method for analyzing and verifying the functional vulnerability of electronic targets according to claim 1, characterized in that: In step seven, the method for conducting damage tests and verifying the results is as follows: Based on the damage criteria, damage rules and damage modes of equivalent targets, the test conditions and functional damage states corresponding to the equivalent targets are determined, and verification tests of different test conditions are systematically carried out for equivalent targets working in real time. Through the functional vulnerability analysis method and the established functional vulnerability model of equivalent targets, the functional vulnerability of the equivalent targets under the damage of different test conditions is predicted. According to the comparison between the measured results of the damage test and the predicted results of the vulnerability model, the equivalent targets and the vulnerability model are iteratively optimized. Finally, the effectiveness of the functional vulnerability analysis method and the vulnerability model is verified.
Citation Information
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