12 results about "Fuzzy analytic hierarchy process" patented technology

The application discloses a kind of underwater vehicle degradation characterization method, belong to underwater vehicle technical field, steps are as follows: the full life cycle data collected by sensor carried on underwater vehicle is collected, data is preprocessed;Feature extraction is carried out to the data after pre-processing;Design a kind of layered cooperation particle swarm optimization algorithm based on fuzzy analytic hierarchy process, the selected feature is obtained by screening the extracted feature, and the final optimal feature combination is obtained;Dynamic correlation mahalanobis distance is used to weight and fuse the selected feature, and the fusion feature is obtained;Using the UMAP dimension reduction method with degradation perception, the degradation process is divided into three stages of early, middle and late according to the full life cycle data, an independent UMAP submodel is trained in each stage, and then the degradation index is fused by transfer learning.This application breaks through the limitation of single signal, realizes multi-component coupling degradation recognition, strengthens early degradation capture, reduces the rate of missed judgment and fault risk, has environmental dynamic adaptability, and adapts to complex deep-sea working conditions.

The application discloses a kind of multi-source sensing and space-time matching inland waterway navigability test and evaluation method, belong to waterway engineering and ship test evaluation technical field.Pass through the layout shore base monitoring unit and integrated shipboard perception unit, unified space-time datum is constructed;Based on unified space-time datum, space-time matching fusion is carried out to ship dynamic response data and waterway environment data, forms ship response-environment excitation coupling data set, constructs three-layer navigability performance evaluation system, uses improved fuzzy analytic hierarchy process to determine index weight in combination with three scale method and optimal transfer matrix, uses cloud model to complete index quantization and comprehensive evaluation value calculation, finally determines waterway navigability effect grade according to comprehensive expectation value.The application realizes the quantitative evaluation of multi-source data accurate fusion and subjective and objective fusion, forms standardization test and evaluation process, truly reflects the coupling navigability characteristics of waterway and ship, provides technical support for inland waterway engineering acceptance, navigation safety management and waterway optimization design.

The application discloses an offshore renewable energy development evaluation method and system, which comprises the following steps: obtaining offshore renewable energy development data; using a fuzzy analytic hierarchy process to evaluate the offshore renewable energy development data to obtain a preliminary evaluation result; determining index weights for evaluating the offshore renewable energy development data based on the preliminary evaluation result; performing index value assignment and data standardization processing on the index weights to obtain a comprehensive evaluation result according to the processing result. The application can effectively evaluate offshore renewable energy development.

The application discloses a kind of civil aviation information coordination system modeling and evaluation method based on complex network, for the lack of prior art, in combination with the structure and operating characteristics of civil aviation information coordination system, it is abstracted into the networked graph model of multiple types of nodes and its interconnection relationship constitutes, realize system standardization description;Design by network flexibility, structural robustness, information interaction efficiency three aspects multiple key indicators constitute the performance evaluation multilayer index system, and for the subjective weight of the performance evaluation first-level index obtained by fuzzy analytic hierarchy process and the objective weight of the performance evaluation second-level index obtained by inverse entropy weight method, with the principle of minimum deviation to carry out the subjective and objective fusion second-level index weighting, calculate the contribution of each index to the comprehensive performance of civil aviation information coordination system, finally realize the scientific quantification evaluation of the designed civil aviation information coordination system performance.The present application can provide theoretical support for future civil aviation information coordination system construction and optimization from top-level architecture construction.

The application relates to the technical field of green construction scheme evaluation, and discloses a green construction scheme evaluation method and system based on case reasoning and a fuzzy analytic hierarchy process, which comprises the following steps: constructing an evaluation index system, structuring historical cases to form a case library, obtaining subjective weights based on the fuzzy analytic hierarchy process and performing consistency checking, obtaining objective weights based on an entropy weight method, fusing the subjective weights and the objective weights to obtain comprehensive weights of each index based on the minimum discrimination information principle, converting index values into cloud model parameters based on a reverse cloud model, respectively generating index cloud model parameters of a target engineering scheme and each historical case, obtaining a weighted comprehensive similarity according to position similarity and shape similarity, selecting cases with a weighted comprehensive similarity not lower than a threshold value as similar cases, determining an evaluation grade of the target engineering, and optimizing the target engineering scheme; and the application solves the problems of one-sided index system, low case matching accuracy and disconnection between evaluation and optimization measures in evaluation.

The application provides a kind of road area damaged ecosystem restoration technology ecological benefit promotion quantitative evaluation method, comprising: by obtaining the multi-modal data of target road full life cycle, the multi-dimensional evaluation index system covering ecosystem structure, ecological environment quality and ecosystem function is constructed;Utilize fuzzy analytic hierarchy process to couple multiple indexes to generate comprehensive road area ecological index;By constructing the double reference system dynamic benchmark containing historical conditions and minimal interference, the non-engineering interference factors such as climate fluctuation are stripped from the time and space dimensions, the index difference before and after restoration is compared and analyzed, and the net ecological benefit promotion amount brought by restoration technology is accurately quantified.The problems that natural background fluctuation interference is difficult to eliminate and the cause is unknown in the prior art are overcome, accurate and dynamic evaluation of the restoration effect of road area damaged habitat is realized, and scientific basis is provided for green transportation construction decision-making.

The application provides a gas production process effect analysis method, system, storage medium and equipment, the method comprises the following steps: obtaining gas well production dynamic data, and calculating gas production process effect evaluation indexes; according to the calculated gas production process effect evaluation indexes, combining a fuzzy evaluation method, a gas production process effect comprehensive evaluation method is established; the weight of the gas production process evaluation index is determined by using the fuzzy analytic hierarchy process; the gas production process comprehensive evaluation index is obtained by using the gas production process effect comprehensive evaluation method and combining the weight of the gas production process evaluation index, the gas production process effect is evaluated, and the gas production process effect is analyzed. Through the analysis of the gas well production dynamic parameters, the gas production effect evaluation indexes are selected, the fuzzy comprehensive evaluation method is combined, the gas production process effect evaluation method and equipment are established, the gas production process comprehensive evaluation indexes are calculated, the quantitative evaluation of the gas well gas production process effect is realized, and data support is provided for the selection and optimization of the gas field drainage measures.

This invention discloses a method, system, and medium for evaluating the engineering suitability of gravelly soil fillers based on fuzzy hierarchical analysis, relating to the field of geotechnical engineering technology. It improves upon existing technologies by constructing an applicability evaluation framework comprising a target layer, a criterion layer, and an index layer, along with objective and unified evaluation grading rules. Based on fuzzy hierarchical analysis, it determines the contribution weight of each index to different engineering performances and, through fuzzy weight calculation, couples the systematic influence of multiple factors such as particle size distribution, parent rock properties, and particle shape into the final evaluation result. This provides a structured framework and unified scoring standards for the evaluation process, solidifying scattered and fuzzy expert experience into a set of executable objective rules, greatly reducing arbitrariness and subjective bias in the evaluation process.

The application discloses an active distribution network cyber physical system (ADNCPS) operation situation prediction method and system against network attacks, constructs an ADNCPS situation prediction index system, sets alarm threshold values for various indexes in the index system, stores real-time acquired ADNCPS operation data into a historical data storage module, completes the screening and calculation of initial ADNCPS operation data by using the constructed ADNCPS situation prediction index system, compares the calculation results with the alarm threshold values of various prediction indexes, stores the index data exceeding the alarm threshold values according to time sequences, completes the prediction of various indexes by using a model parallel situation prediction model based on CNN-LSTM, and finally completes the operation situation prediction of the ADNCPS by using a fuzzy analytic hierarchy process method. The application improves the prediction accuracy and provides protection for the safe and stable operation of the ADNCPS.

The application discloses a kind of offshore renewable energy development comprehensive analysis method and system, the method constructs the evaluation index system of renewable energy;According to the evaluation index system of renewable energy and influencing factors, the importance analysis and evaluation result is obtained by using fuzzy analytic hierarchy process to offshore renewable energy development;Determine energy supply and demand state and functional zoning;Based on the importance analysis and evaluation result, and according to energy supply and demand state and functional zoning, the comprehensive analysis result of renewable energy development is obtained by comprehensive analysis of renewable energy development.This application can significantly improve energy utilization efficiency, reduce cost, improve system reliability and safety, while promoting technological innovation and standardization, enhance environmental and social benefits.

The application relates to the field of electric vehicle charging scheduling, and discloses an electric vehicle charging situation awareness and autonomous regulation method based on multi-target fuzzy evaluation. Electric vehicle, parking lot and user data are collected to identify the current charging scene type; a fuzzy analytic hierarchy process (FAHP) is used to construct a hierarchical structure of user charging urgency, dynamically assign weights to the criterion layer, and calculate the real-time charging urgency coefficient of each electric vehicle by using fuzzy comprehensive evaluation (FCE); the charging urgency coefficient is used as the satisfaction weight to construct a user satisfaction and power grid load fluctuation optimization model and solve the model; model predictive control (MPC) is used to roll over the above steps in a preset time period, and a correction mechanism is introduced to update the user credit level according to the execution deviation of the last period, which is used for urgency evaluation in the next period.

The application discloses a risk assessment method and system for an edge intelligent control platform based on a mixed game, and comprises the following steps: constructing a security risk hierarchy based on information domain and physical domain of the edge intelligent control platform; describing potential attack paths in the edge intelligent control platform by using an attack graph model, adding attack-defense mixed game strategies in nodes, combining fuzzy analytic hierarchy process and Critic combined weighting to determine risk values of the nodes in the attack graph; updating risk factor correlation based on dynamic Bayesian networks according to real-time monitoring data, optimizing the risk values of the nodes, calculating a root node risk value, and evaluating the risk of the intelligent control platform based on the optimized node and root node risk values. The application can accurately reflect changes in complex system interaction and attacker behavior, realize dynamic monitoring and response of real-time threats, accurately depict optimal solutions of strategy selection of both parties by game theory analysis, further determine implementation probabilities of different defense strategies, and improve accuracy and adaptability of the evaluation results.