CN-121997175-A - Integrated performance comprehensive evaluation method and system for chemical protective clothing for fire control

CN121997175ACN 121997175 ACN121997175 ACN 121997175ACN-121997175-A

Abstract

The invention relates to the technical field of performance evaluation of safety protection equipment, in particular to an integrated performance comprehensive evaluation method of chemical protective clothing for fire protection, which comprises the steps of firstly constructing a first-level evaluation index system comprising protective performance, environmental adaptability and human engineering performance and a second-level evaluation index system corresponding to the first-level evaluation index system; secondly, a DEMATEL method and an entropy weight method are respectively adopted to calculate subjective weights and objective weights, and optimal combined weights are obtained through improved game theory model fusion; and finally, fusing multi-source information by utilizing DS evidence theory, processing index conflict and outputting comprehensive evaluation grade and adaptive disaster scene suggestion. Through fusing expert experience and experimental data, the problems of ambiguity and randomness in evaluation are effectively solved, and accurate evaluation of chemical protective equipment performance and actual combat model selection guidance are realized.

Inventors

WANG KEYI
HU XIAO
LIU LIFANG
WANG ZE

Assignees

东华大学

Dates

Publication Date: 20260508
Application Date: 20260128

Claims (10)

1. The comprehensive evaluation method for the integrated performance of the chemical protective clothing for fire control is characterized by comprising the following steps of: step S1, constructing an evaluation index system, namely establishing first-level indexes including protection performance, environmental adaptability and human engineering performance aiming at integrated equipment of chemical protective clothing and positive pressure type breathing equipment, and constructing corresponding second-level indexes aiming at each first-level index; S2, calculating subjective weight, namely obtaining scoring data of the domain expert on the mutual influence relation among the indexes in the evaluation index system, calculating the centrality of each index based on a DEMATEL method, and normalizing the centrality to obtain subjective weight vectors of the indexes; S3, calculating objective weights, namely collecting experimental test data of each secondary index of different samples under the evaluation index system, constructing a data matrix, performing standardized processing, calculating entropy values and difference coefficients of each index by using an entropy weight method, and further obtaining objective weight vectors of each index; s4, determining a combination weight, namely constructing a combination weighting model based on an improved game theory, aiming at minimizing deviation of the combination weight and the subjective weight vector and the objective weight vector, solving an optimal combination coefficient, and linearly fusing the subjective weight vector and the objective weight vector to obtain a final combination weight; s5, generating an evaluation cloud, namely setting a comment set and corresponding cloud model digital characteristics thereof, converting index data of an object to be evaluated into cloud membership, and carrying out weighted aggregation on the evaluation cloud of each secondary index based on the combination weight to generate a comprehensive evaluation cloud of a primary index and overall equipment; and S6, multi-source information fusion and grade judgment, namely converting the comprehensive evaluation cloud into a basic probability distribution function, fusing multi-source evidence by adopting a Dempster synthesis rule of DS evidence theory, determining a final evaluation grade according to the maximum probability after synthesis, and outputting an adaptive disaster scene suggestion by combining a disaster database.
2. The method for comprehensively evaluating the integrated performance of the chemical protective clothing for fire protection according to claim 1, wherein in the step S1, the secondary indicators of the protective performance comprise the number of chemical substance protections, the types of chemical substance protections, the protection time, the post-detonation combustion time and the burn area; The secondary indexes of the environmental adaptability comprise the influence degree of temperature and humidity on air tightness, the influence degree of temperature and humidity on liquid tightness and the influence degree of temperature pretreatment; The secondary indexes of the human body ergonomics comprise equipment weight, limb flexibility, respiratory resistance and psychological and physiological comfort level under a circulatory task.
3. The method for comprehensively evaluating the integrated performance of the chemical protective clothing for fire protection according to claim 1, wherein the specific process of calculating the subjective weight in the step S2 is as follows: constructing a direct influence matrix X: ; Wherein x ij represents the direct influence degree of the ith index on the jth index, and n represents the total number of evaluation indexes; and (3) carrying out standardization processing on the direct influence matrix X to obtain a matrix Y: ; where Y represents the normalized direct impact matrix, Representing the sum of elements of row i; calculating a comprehensive influence matrix by using the standardized direct influence matrix Wherein Is a unit matrix; Calculating the influence degree of each index Degree of influence of : ; Wherein the method comprises the steps of Representation matrix Middle (f) Line 1 The column elements are arranged in a row, Represent the first The degree of the combined influence of each index on all other indexes, Represent the first The degree of comprehensive influence of all other indexes on each index; Calculating centrality And obtaining subjective weight through normalization: ; Wherein the method comprises the steps of Representing the sum of all index centroids.
4. The method for comprehensively evaluating the integrated performance of the chemical protective clothing for fire protection according to claim 1, wherein the specific process of calculating the objective weight in the step S3 is as follows: Collecting experimental data of each secondary index under different samples, and constructing an original data matrix: ; Wherein the method comprises the steps of Represent the first The first sample is at The original value on the individual index is used, Representing the number of samples to be taken, Representing the total number of evaluation indexes; distinguishing a forward index and a reverse index, and carrying out standardization processing on the collected experimental data, wherein the forward index is as follows: Reverse index: ; Wherein the method comprises the steps of Representing the data value after the normalization, Represent the first Maximum of the individual indicators among all samples; calculating entropy value of j-th index And specific gravity : If (3) Order in principle And is also provided with ; Calculating a coefficient of difference Normalizing to obtain objective weight 。
5. The method for comprehensively evaluating the integrated performance of the chemical protective clothing for fire protection according to claim 1, wherein the specific process of constructing the combined weighting model in the step S4 is as follows: Constructing a combined weight vector: Wherein As a result of the subjective weight vector, For objective weight vector, alpha, beta are linear combination coefficients, and alpha, beta >0, ; An optimization model is established, and deviation between the minimized combination weight and the subjective and objective weights is calculated: ; Wherein the method comprises the steps of The euclidean norms are represented and, , ; Solving to obtain an optimal combination coefficient, carrying out normalization processing, and substituting the optimal combination coefficient into a combination weight formula to obtain a final combination weight.
6. The method for comprehensively evaluating the integrated performance of the chemical protective clothing for fire protection according to claim 1, wherein the process of generating the evaluation cloud in the step S5 is specifically: Utilizing a forward cloud generator to collect cloud parameters according to preset comments ) And index data calculation certainty degree, generated to In the hope that, Normal random number as variance To In the hope that, Normal random number as variance The certainty formula is: ; Calculating weighted global evaluation cloud expectations Entropy of Wherein Is the combination weight of the j index.
7. The method for comprehensively evaluating the integrated performance of the chemical protective clothing for fire protection according to claim 1, wherein the step S6 of outputting the adaptive disaster scene advice specifically comprises: when the final score is greater than or equal to 85%, judging the applicable scene as a high-risk chemical disaster; When the final score is between 70 and 84, judging the applicable scene as a medium-risk chemical disaster; and when the final score is less than 70, judging the applicable scene as a low-risk chemical disaster or training scene.
8. An integrated performance integrated evaluation system for fire protection chemical protective clothing for performing the method according to any one of claims 1 to 7, characterized in that the system comprises: The weight calculation module comprises a subjective weight calculation unit, an objective weight calculation unit and a combined weight optimization unit and is used for calculating and outputting final combined weights of evaluation indexes based on a DEMATEL method, an entropy weight method and an improved game theory model respectively; The evaluation module is used for receiving index data of the chemical protective clothing to be evaluated, generating comprehensive evaluation cloud by combining the combination weight and the preset cloud model parameters, and generating a final evaluation result by utilizing DS evidence theory fusion; and the disaster grade comparison module is used for storing a database corresponding to the disaster grade and the performance requirement, receiving the evaluation result output by the evaluation module, comparing the evaluation result with a threshold value in the database and outputting disaster scene grade suggestions suitable for the chemical protective clothing.
9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method according to any one of claims 1 to 7 when the computer program is executed.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method according to any one of claims 1 to 7.

Description

Integrated performance comprehensive evaluation method and system for chemical protective clothing for fire control Technical Field The invention relates to the technical field of performance evaluation of safety protection equipment, in particular to a comprehensive performance evaluation method and system for chemical protective clothing for fire protection. Background When a firefighter handles dangerous chemical accidents, the firefighter must wear chemical protective clothing and wear a positive pressure type air respirator, and the integrated equipment is the last line of defense for guaranteeing life safety of rescue workers. However, the performance evaluation of such equipment faces great complexity, namely, on one hand, the evaluation indexes are numerous and cover multiple dimensions such as chemical protection capability, physical and mechanical properties, thermal comfort and ergonomics, natural contradictions exist among the indexes (such as the stronger the protection performance is, the thicker the material is often meant, the thermal and wet comfort and flexibility are reduced), and on the other hand, the existing evaluation means are limited to single performance test and lack comprehensive consideration on the integration performance of a human-packaging-environment system. In the prior art, an evaluation model for protective clothing mainly comprises a subjective evaluation method, an objective evaluation method and a part of simple comprehensive evaluation method. However, conventional weighting methods often split subjective experience and objective data. Simple subjective weighting is easily influenced by personal preference of expert, and lacks stability, simple objective weighting is completely dependent on the degree of data dispersion, some important key indexes with little data difference can be ignored, in multi-index evaluation, different data sources can give out the conclusion of mutual conflict, and the traditional linear weighting often covers the conflict, so that the evaluation result is distorted. Therefore, a comprehensive evaluation method capable of scientifically fusing subjective and objective weights, effectively processing fuzzy and conflict information and directly guiding actual combat model selection is needed. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a comprehensive evaluation method and a comprehensive evaluation system for the integration performance of a chemical protective suit for fire control, which scientifically fuses expert experience and experimental data by an improved game theory combined weighting method, and (3) converting qualitative language and quantitative numerical value by using a cloud model, introducing DS evidence theory to process conflict of multi-source information, and finally outputting a comprehensive evaluation result matched with the disaster grade. The invention aims to realize the technical scheme that the integrated performance comprehensive evaluation method of the chemical protective clothing for fire protection comprises the following steps of: step S1, constructing an evaluation index system, namely establishing first-level indexes including protection performance, environmental adaptability and human engineering performance aiming at integrated equipment of chemical protective clothing and positive pressure type breathing equipment, and constructing corresponding second-level indexes aiming at each first-level index; S2, calculating subjective weight, namely obtaining scoring data of the domain expert on the mutual influence relation among the indexes in the evaluation index system, calculating the centrality of each index based on a DEMATEL method, and normalizing the centrality to obtain subjective weight vectors of the indexes; S3, calculating objective weights, namely collecting experimental test data of each secondary index of different samples under the evaluation index system, constructing a data matrix, performing standardized processing, calculating entropy values and difference coefficients of each index by using an entropy weight method, and further obtaining objective weight vectors of each index; s4, determining a combination weight, namely constructing a combination weighting model based on an improved game theory, aiming at minimizing deviation of the combination weight and the subjective weight vector and the objective weight vector, solving an optimal combination coefficient, and linearly fusing the subjective weight vector and the objective weight vector to obtain a final combination weight; s5, generating an evaluation cloud, namely setting a comment set and corresponding cloud model digital characteristics thereof, converting index data of an object to be evaluated into cloud membership, and carrying out weighted aggregation on the evaluation cloud of each secondary index based on the combination weight to generate a comprehensive evaluation cloud of a prim