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1253 results about "Analytic hierarchy process" patented technology
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The analytic hierarchy process (AHP) is a structured technique for organizing and analyzing complex decisions, based on mathematics and psychology. It was developed by Thomas L. Saaty in the 1970s and has been extensively studied and refined since then. It represents the most accurate approach for quantifying the weights of criteria. Individual experts’ experiences are utilized to estimate the relative magnitudes of factors through pair-wise comparisons. Each of the respondents has to compare the relative importance between the two items under special designed questionnaire (note that while most of the surveys adopted the five point likert scale, AHP's questionnaire is 9 to 1 to 9, see Li et al (2019)
System and method for quantitatively evaluating unmanned vehicles
InactiveCN103234763AQuantitative Evaluation ScienceAccurate quantitative evaluationVehicle testingIndex systemAnalytic hierarchy process
The invention relates to a method and a system for evaluating and testing unmanned vehicles. The method includes dividing intelligent levels of the unmanned vehicles into different grades according to the complexity of running environments of the unmanned vehicles, the complexity of execution tasks, manual intervention degrees and the running quality of the unmanned vehicles; determining an unmanned vehicle evaluating and testing index system, determining various grades of index weighs by an expandable analytic hierarchy process and combining running parameters of the unmanned vehicles to quantitatively analyze interaction of the unmanned vehicles and the environments; and combining quantitative analysis results of the interaction of the unmanned vehicles and the environments to qualitatively test and evaluate the unmanned vehicles. The invention further provides a corresponding system for evaluating and testing the unmanned vehicles. The method and the system for evaluating and testing the unmanned vehicles have the advantages that by the method and the system, the unmanned vehicles can be accurately quantitatively evaluated, improvement and development of an unmanned vehicle technology are promoted, and accordingly the unmanned vehicles can assuredly safely run in actual traffic environments.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Electric network energy quality synthetic appraisement method based on analytic hierarchy process and fuzzy algorithm
A method combining analytic hierarchy process and fuzzy algorithm is provided to evaluate grid electricity quality, including establishing a power quality comprehensive evaluation index system, realizing a comprehensive evaluation of the grid electricity quality status and grid electricity quality in different areas and so on. The invention overcomes the limitation of traditional single-index and single-point power quality evaluation, forming a comprehensive and practical power quality evaluation index system with technical and data support provided for the safe and stable operation of electricity grid.
Owner:JIANGSU ELECTRIC POWER RES INST
Operating level and power supplying capability evaluation method for urban electric distribution network
InactiveCN102063657AReflect weaknessesStrong targetingData processing applicationsEngineeringDesign assessment
The invention belongs to the field of analysis on operation of an electric distribution network, and relates to an operating level and power supplying capability evaluation method for an urban electric distribution network. The method comprises the following steps of: based on point view of system engineering and own intensive property of index, clearing up and analyzing existing indexes relative to the operating level and the power supplying capability of the electric distribution network, constructing an electric distribution network operating level and power supplying capability evaluation index system by combining an improved analytic hierarchy process with a fuzzy evaluation method, selecting and design an evaluation index based on expert advice to determine an index range and a weight of the evaluation on the operating level and the power supplying capability of the electric distribution network, determining a rational range of an evaluation index, setting weight of each evaluation index, and finally providing flows and use methods of comprehensive evaluation on the operating level and the power supplying capability of the urban electric distribution network.
Owner:CHINA ELECTRIC POWER RES INST +1
Analytic hierarchy process-fuzzy comprehensive evaluation-based chemical project environmental risk evaluation system
InactiveCN105023067AWide range of evaluationHigh feasibilityForecastingProject environmentEnvironmental behavior
The invention discloses an analytic hierarchy process-fuzzy comprehensive evaluation-based chemical project environmental risk evaluation system and belongs to the field of environmental risk control and management. The system comprises the following steps: (1) establishing an environmental risk evaluation index system; (2) dividing the evaluation levels of the environmental risk evaluation index system, determining the standards for evaluation of indexes under different levels, and scoring the indexes; (3) determining the weight of individual index by applying the analytic hierarchy process; (4) carrying out environmental risk comprehensive evaluation by virtue of fuzzy comprehensive evaluation to obtain a decision set; and (5) evaluating the decision set according to the maximum membership principle to obtain the environmental risk evaluation level. According to the technical scheme disclosed by the invention, the system is suitable for risk evaluation of environmental behaviors in all chemical project production processes, can be used for comprehensive risk evaluation, and is comprehensive in evaluation range, perfect in method and system, accurate in evaluation system and good in feasibility.
Owner:NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
Evaluation Method and Evaluation Device for Water Breakthrough Risk of Production Wells in Aquifer Drive Gas Reservoirs
InactiveUS20160145994A1High accuracy of resultsEasy to calculateElectric/magnetic detection for well-loggingSurveyWater wellFuzzy relation matrix
The present invention provides an evaluation method and an evaluation device for water breakthrough risk of gas wells in gas reservoirs with aquifers, the method comprising the following steps: building evaluation factors that influence water breakthrough risk of gas wells in gas reservoirs with aquifers; acquiring weight vectors of the evaluation factors based on an analytic hierarchy process; building a fuzzy relationship matrix between the water breakthrough risk of gas wells in gas reservoirs with aquifers and its evaluation factors; and synthesizing the fuzzy relationship matrix and the weight vectors according to a weighted average fuzzy synthesis operator, to acquire a comprehensive evaluation result of water breakthrough risk of gas wells in gas reservoirs with aquifers. The present invention improves the accuracy of the evaluation result of water breakthrough risk of the gas wells, and is able to obtain an evaluation result that is more consistent with the case of actual water breakthrough of gas wells in gas reservoirs with aquifers.
Owner:PETROCHINA CO LTD
Security emergency processing method and system based on analytic hierarchy process
ActiveCN106960269AShorten the emergency response cycleInhibited DiffusionResourcesRisk levelCountermeasure
The invention belongs to the information security technology field and more particularly, to a security emergency processing method and system based on analytic hierarchy process. The method comprises the following steps: S1) determining a risk evaluation object; S2) determining whether the risk evaluation object is located in a special scene or not; if the risk evaluation object is, then, switching to the step 5; otherwise, constructing an index system featuring the asset, the vulnerability and the threat; S3) assigning a score to the asset index; using the analytic hierarchy process to assign scores to the vulnerability index and the threat index; calculating the scores of asset loss and the security event and obtaining the corresponding risk values; S4) according to the risk values, dividing the security levels; and S5) proposing different processing policies according to the different risk levels. According to the invention, the method and the system integrate the security risks of the asset importance, the vulnerability degree and the threat and then, further, quantify and divide them into different levels, which effectively shortens the emergency processing cycle of a security event, contains the spreading of the security risk and raises the overall security emergency efficiency.
Owner:ZHEJIANG PONSHINE INFORMATION TECH CO LTD
Evaluation method for distribution network reliability
The invention relates to an evaluation method for distribution network reliability, comprising the following steps: (1) transferring evaluation of the distribution network reliability to analysis on the distribution network blackout power factors, and carrying out decoupling treatment on the distribution network blackout power factors; (2) using an analytic hierarchy process (AHP) to establish an evaluation system of distribution network reliability; (3) establishing a comprehensive quantitative model of the distribution network reliability; (4) formulating an evaluation standard of the distribution network reliability; and (5) specifying weight indicators of the distribution network reliability. In the method, the evaluation theory of the distribution network reliability is combined with an actual power grid, so that the evaluation of the distribution network reliability is transferred to the analysis on the distribution network blackout factors and the evaluation system, the evaluation model, the evaluation standards and the evaluation indicator weights of the distribution network reliability are established, thus enabling to reflect the existing reliability level of the distribution network from a plurality angles, thereby playing a huge role in works, such as related decisions, high-reliability power supply area distribution network plans and the like on evaluation of the distribution network reliability, formulation of high-reliability distribution network establishment principle and establishment direction, and the like.
Owner:STATE GRID TIANJIN ELECTRIC POWER +1
Container terminal physical distribution emulation optimizing system
InactiveCN101458788AReduce logistics costsIncreased logistics costsLogisticsDistribution controlGenetic algorithm
The invention discloses a container dock logistic simulation optimization system, which is connected with a dock logistic management system provided with a dock company logistic management data, for obtaining optimal dock resource configuration and production distribution scheme according to the ship arrival scheme. The system comprises: (1) a memory module; (2) an evaluation module for using AHP analytic hierarchy process to determine the weight value of each index, to obtain the efficiency score of a logistic system; (3) a simulation module comprising a ship arrival module, a berth distribution module, a frontier loading and unloading module, a memory operation module, a horizontal transportation module, a yard operation module, an external operation module, a lake gate check module, a distribution control module and an I / O module, building the relationship among solid properties, debugging and checking the simulation model; (4) an optimization circulation module for combining genetic algorithm and simulation technology to solve each index; (5) a simulation optimization result output module.
Owner:TIANJIN MUNICIPAL ENG DESIGN & RES INST
Safety level evaluation method of power grid
ActiveCN101800426AEasy to understandPractical applicationAc network circuit arrangementsStructure analysisTotal risk
The invention relates to a safety level evaluation method a power grid, comprising the following steps of: firstly determining a supposed accident list, and sequentially disconnecting elements of the supposed accident list; after a certain element is disconnected, carrying out topological structure analysis and load flow calculation on a system, and then calculating a power grid loss load risk evaluation index, a power grid overload risk evaluation index, a power grid low voltage risk evaluation index and a power grid voltage collapse risk evaluation index; repeating the process till all the elements of the supposed accident list are completely calculated; and then calculating a system single-risk evaluation index and a system total-risk evaluation index. The invention introduces a risk theory and a utility theory to the safety evaluation of the power grid, separately diagnoses the safety of the system from different side surfaces, further obtains the risk evaluation index of the whole system by an analytic hierarchy process (AHP), obtains simple and clear results and has better discrimination and can reflect the occurrence possibility of different accidental accidents and severity degree of a consequence caused by the accidental accidents.
Owner:STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +1
Transformer operating state comprehensive evaluation method based on on-line monitoring
ActiveCN103678765AOvercome limitationsSimplify complexitySpecial data processing applicationsEvaluation resultGrey correlation analysis
A transformer operating state comprehensive evaluation method based on on-line monitoring comprises the following steps that monitoring various state indexes of a transformer in an on-line mode and conducting quantitative processing; determining the weights of evaluation indexes by combining improved analytic hierarchy process and grey correlation analysis; evaluating the state of the transformer. According to the transformer operating state comprehensive evaluation method based on on-line monitoring, the state of the transformer is combined to evaluate correlation function operation and membership degree process of the indexes, a transformer state comprehensive evaluation model based on combination of combination weighting approach and a fuzzy grey element is established, various on-line detecting state information quantities can be synchronized, the operation state of the transformer can be effectively and accurately judged in a comprehensive mode, an evaluation result is intuitive, and the method is used for instructing practical overhaul arrangement work of the transformer.
Owner:上海迈内能源科技有限公司
Risk assessment method based on fuzzy matrix and analytic hierarchy process
The invention discloses a risk assessment method based on a fuzzy matrix and an analytic hierarchy process. The risk assessment method based on the fuzzy matrix and the analytic hierarchy process comprises the steps that a plurality of evaluation indexes are set to generate an evaluation index domain; a plurality of evaluation scales are set to generate an evaluation scale domain, and each evaluation scale corresponds to a scale fuzzy subset; the membership of a dangerous source for each scale fuzzy subset is calculated, and a membership matrix is constructed; weight vectors of the evaluation indexes are calculated; a fuzzy comprehensive evaluation result vector of the dangerous source is synthesized; a risk assessment value is calculated; a risk value is calculated, and the risk condition of the dangerous source is judged according to a risk matrix and the risk value. Through the application of the fuzzy matrix and the analytic hierarchy process in risk assessment, the risk assessment method is used for analyzing various undetermined factors and indexes in the risk assessment process; first-scale indexes and second-scale indexes are set for evaluation from multiple aspects, so that analysis is more comprehensive and a danger value of possibility and a danger value of severity are formed; curving of a risky area chart guarantees stable risk conditions of the dangerous source.
Owner:广州市中南民航空管通信网络科技有限公司
Transformer state evaluation method and system
An embodiment of the invention discloses a transformer state evaluation method and system. State quantity indexes are normalized to obtain the health degree of the state quantity indexes, the subjective weight of each state quantity index is determined by an analytic hierarchy process in a fuzzy comprehensive evaluation theory, an objective weight corresponding to each state quantity is obtained by an entropy weight method and used for correcting the subjective weight to obtain comprehensive weight parameters of each state quantity index, the connection degree of each state quantity index and state classification is obtained by the aid of connection degree in a set pair analysis theory, and finally, data of evaluation results of a hierarchical index set of each unit are integrated by the aid of D-S evidence theory fusion rules to obtain state evaluation results of each sub-unit. Whether a transformer needs maintenance or not can be determined according to the state evaluation results, so that blindness of planned maintenance is avoided, and human and material resources needed by maintenance for the transformer are reduced.
Owner:STATE GRID ZHEJIANG NINGBO YINZHOU POWER SUPPLY LTD CO +2
Method for comprehensively evaluating electric energy quality
InactiveCN102542347AClear physical meaningFacilitate decision-makingData processing applicationsPower qualityDecision model
The invention discloses a method for comprehensively evaluating the electric energy quality by applying a TOPSIS (Technique for Order Preference by Similarity to Ideal Solution) of a grey correlation coefficient matrix, which comprises the following steps of: taking electric energy quality data at all time intervals and standard data at all grades as an original decision matrix; determining subjective weights through an improved AHP (Analytic Hierarchy Process); determining objective weights through an entropy method; establishing a least square method decision model to obtain a comprehensive weight, so that the deviation of decision results under the subjective weights and the objective weights of all indexes is the least; carrying out standardization and weighted standardization on the decision matrix and obtaining the grey correction coefficient matrix by utilizing the grey theory; taking the grey correction coefficient matrix as a decision matrix of the TOPSIS to obtain the distance between positive ideal solutions and negative ideal solutions of all schemes and the relative closeness of the positive ideal solutions and the negative ideal solutions; and comparing the electric energy quality closeness at all the time intervals with the standard closeness at all the electric energy quality grades to finally obtain the electric energy quality grades at all the time intervals. With the adoption of the method, the electric energy quality evaluation result can be objectively and reasonably obtained under the situation of poor information, so that the practicability and the feasibility are stronger.
Owner:SOUTHEAST UNIV
Vertical switching method based on dynamic weight optimization in heterogeneous network
ActiveCN107071841AReduce blocking rateReduce call drop rateWireless communicationPersonalizationAccess network
The invention discloses a vertical switching method based on dynamic weight optimization in a heterogeneous wireless network. Aiming at the problems that the mobility of terminals and the time-varying characteristics of network states lead to dynamic performance, different service types have personalized requirements for networks, and poor vertical switching performance is caused, performance optimization is carried out from the following aspects: firstly, separately calculating subjective weights and objective weights of network parameters by using an analytic hierarchy process (AHP) and an entropy evaluation method, and initializing the combined weights based on a linear single objective optimization (SOP) theory; secondly, introducing weight adjustment factors, and dynamically adjusting the weight of each network parameter to adapt to the dynamic change performance of network conditions; and finally, selecting an optimum access network by adopting utility functions with adjustable switching thresholds based on the personalized requirements of a terminal. Experimental results show that by adopting the vertical switching method disclosed by the invention, the switching blocking rate and call drop rate of the terminal can be effectively reduced, unnecessary switching can be reduced, 'ping-pong effects' can be reduced, and the comprehensive performance of vertical switching can be improved.
Owner:CHONGQING UNIV OF POSTS & TELECOMM
User-based multi-access network selection method being used under wireless heterogeneous network environment
The invention discloses a user-based multi-access network selection method being used under a wireless heterogeneous network environment and provides a dynamic multi-access selection method which is combined with an object cost function and the analytic hierarchy process by starting from user interests and fully considering cost, QoS and stability of pre-access to a network. A network selection decision model is established by analyzing and judging influencing factors; furthermore, the method has the advantages of the multi-factor-based network selection method, and can correctly and effectively carry out network selection and be conveniently realized in a user terminal.
Owner:XIANGTAN UNIV
Different-scale regional flood damage risk evaluation method
The invention discloses a different-scale regional flood damage risk evaluation method. The method comprises: collecting space data of a to-be-analyzed region and attribute data associated with the space data as initial data, compressing the initial data and storing the compressed data in a created space database; standardizing the initial data, and unifying units; coupling a model by utilizing an analytic hierarchy process (AHP) method and an entropy weight method, and determining each factor combination weight; and evaluating and researching a regional flood damage risk value, classifying risk grade, and generating a flood damage risk index diagram. According to the different-scale regional flood damage risk evaluation method, by utilizing the collected natural and social data as input and various algorithm coupling models, the weights are determined, and finally the flood risk grade evaluation index diagram is generated; therefore, the accuracy of flood damage risk evaluation is improved, objective and efficient advantages are achieved, and the flood damage risks, which have possibility of occurring in a research region, under given conditions are further intuitively shown.
Owner:JILIN NORMAL UNIV
Mountainous area highway landslide risk evaluation model
InactiveCN101630347AEfficient disposalLow costExcavationsSpecial data processing applicationsMountainous terrainLandslide
The invention relates to a mountainous area highway landslide risk evaluation model. The method is based on the theory of fuzzy mathematics, uses fuzzy comprehensive evaluation method, Delphi method, analytic hierarchy process and other methods to calculate the membership influencing hazard and vulnerability of highway side slope so as to obtain index evaluation level of hazard and vulnerability of slide slope risk, on the basis, adopts method of risk evaluation matrix to carry out risk evaluation of talus side slope. The model can predict, recognize, assess and analyze the slide slope risk of side slope that is possible to meet, and on the basis effectively cope with the risk to avoid or reduce the hazard of landslide geological disaster on national economy and life and property of people, and can take measures such as corresponding prevention and treatment on the basis of judgment and prediction of development and change trend of the landslide body.
Owner:TONGJI UNIV
Comprehensive assessment method for running of intelligent power distribution network
InactiveCN103679544APracticalHigh feasibilityData processing applicationsConsequence analysisPower grid
A comprehensive assessment method for running of an intelligent power distribution network includes the steps of firstly, building a comprehensive assessment index system according to the running characteristic of the intelligent power distribution network; secondly, defining application range of the assessment method in terms of preference information, quantity of plans and relation between the quantity of plans and the quantity of attributes on the basis of investigation of the conventional comprehensive assessment method for the power distribution network, selecting the analytic hierarchy process, the fuzzy comprehensive evaluation method and the Delphi method as theoretical supports for comprehensive assessment according to real condition of assessment of running of the intelligent power distribution network, and on the basis of the three methods, providing comprehensive assessment methods and processes which include important links such as weight setting, scoring standard setting and assessment result analyzing. The comprehensive assessment index system relates to five indexes of safety, reliability, economy, high quality and intellectuality. The comprehensive assessment method has high practicability, feasibility and promotion and application value, and can provide important basis for scheduling and planning of the power distribution network and for management staff to make decision.
Owner:JIANGSU ELECTRIC POWER CO +2
Multi-attribute handover decision method for heterogeneous vehicle communication network
InactiveCN102572982AAvoid frequent switchingMinor changesWireless communicationQuality of serviceAccess network
A multi-attribute handover judging method for a heterogeneous vehicle communication network comprises the following steps: a handover management entity reads information on a candidate network in a field network report buffer entity, and the diameter of the coverage region of the candidate network is calculated; a mobility prediction information management entity acquires position information and speed information of a mobile user, and sends the position information and the speed information to the handover management entity; possible residence time and throughput capacity in each neighbor access network of the mobile user is estimated, when the throughput capacity during handover is higher than the throughput capacity in a normal state, the candidate network is added in an alternative list; an optimal target access network is determined to be switched into the network by the handover management entity via an analytic hierarchy process and according to service quality requirements; when the intensity of the current switch-in network signal is lowered to a threshold value, a handover execution instruction is sent to carry out handover. The multi-attribute handover judging method provided by the invention avoids unnecessary handover when a traveling vehicle passes through a region covered by heterogeneous access network, reduces handover delay and ensures the continuity of the communication.
Owner:TONGJI UNIV
Grid security comprehensive evaluation method
InactiveCN103310390AAchieve sufficiencyAchieve comprehensivenessData processing applicationsInformation technology support systemComputing MethodologiesCorrelation coefficient
The invention provides a grid security comprehensive evaluation method which includes that a set of complete two-stage in-advance comprehensive evaluation index system and an each-stage security evaluation index calculating method are built aiming at the requirement of grid security operation evaluation, a grid security comprehensive evaluation model based on a gray area correlation analysis method and the game theory is further provided, initial evaluation is conducted on each one-stage index by the model, an obtained evaluation result is subjected to comprehensive evaluation, a correlation coefficient matrix of each one-stage index is determined by adopting the gray area correlation analysis method, weights are obtained by utilizing a game collection model pair analytic hierarchy process (AHP), an artificial neural network (ANN) and an entropy weight method and are objectively combined to obtain a combined weight, initial evaluation is conducted on each one-stage index, the AHP is adopted to determine a one-stage index weight, and the one-stage index weight and an initial evaluation result are subjected to weighing calculation to further obtain a grid security comprehensive evaluation result, namely the grid security quality ordering.
Owner:WUHAN UNIV
Fault tree and analytic hierarchy process based evaluation method of state of power transformer
InactiveCN103605881ALevel of understandingReasonable arrangements for maintenance workSpecial data processing applicationsTransformerIndex system
A fault tree and analytic hierarchy process based evaluation method of the state of a power transformer specifically comprises the steps of performing analysis on fault factors; establishing a comprehensive evaluation index system of the state of the power transformer; building a judgment matrix by the three-scale analytic hierarchy process; sorting and calculating every index weight; calculating comprehensive indexes of the power transformer; grading the comprehensive indexes of the power transformer. According to the fault tree and analytic hierarchy process based evaluation method of the state of the power transformer, the reasonable comprehensive evaluation index system of the state of the power transformer is established through the analysis by the fault tree method, meanwhile a three-scale analytic hierarchy process based comprehensive evaluation model of the state of the power transformer is disclosed, and accordingly the comprehensive evaluation on the state of the power transformer is objective, the man-made influence factors are effectively reduced, and the operation personnel can understand the state of the power transformer, determine the level of the power transformer and arrange a maintenance plan reasonably through the comprehensive evaluation on the state of the power transformer.
Owner:NANCHANG UNIV
Method for evaluating operation quality of information systems
InactiveCN102902882ASimple structureImprove the level ofSpecial data processing applicationsEntropy weight methodInformation systems security
The invention discloses a method for evaluating operation quality of information systems. The method comprises the steps of firstly, constructing an evaluation index system for the operation quality of information systems; secondly, using an analytic hierarchy process to evaluate the operation quality of the qualitative information system and calculate the subjective weight of evaluation indexes, using an entropy weight method to evaluate the operation quality of the quantitative information system and calculate the objective weight of evaluation indexes, and synthesizing the subjective weight of evaluation indexes and the objective weight of evaluation indexes to calculate the combined weight of all evaluation indexes; and finally, calculating evaluative values of all evaluation objects according to the combined weight, and conducting evaluation analyses on evaluative values of all evaluation objects. According to the method, the entropy weight method and the analytic hierarchy process are combined to evaluate the operation quality of information systems, the potential problems in operation of information systems are found out, the operation guaranteeing capability of information systems is improved, and the operation and maintenance level of information systems is evaluated accurately and objectively, so that the safe, high-efficiency and economical operation of information systems is effectively guided.
Owner:ANHUI JIYUAN SOFTWARE CO LTD +1
Electric power information network vulnerability threat evaluation model establishment method faced to electric power CPS risk evaluation and evaluation system based on the model
ActiveCN105763562AImprove accuracyImprove timelinessPlatform integrity maintainanceTransmissionDistributed structureStructure of Management Information
The invention discloses an electric power information network vulnerability threat evaluation model establishment method faced to electric power CPS risk evaluation and an evaluation system based on the model, the model selects three groups of security vulnerability evaluation factors including vulnerability distribution threat degree, access approach and utilization complexity; an analytic hierarchy process is adopted to establish a vulnerability threat degree evaluation model, and a parameter construction method is provided; on the basis of quantitative evaluation, the evaluation result defines a vulnerability threat level, and the objectivity of quantitative evaluation and visibility of qualitative evaluation are considered; and the system related to the invention comprises a vulnerability detection part and a server part which adopt distributed structure. According to the invention, a vulnerability scanning system and a security area of the electric power information network are combined, an electric power information network vulnerability threat evaluation algorithm based on CVSS and analytic hierarchy process is adopted to perform vulnerability threat evaluation, so that the system can be safer and more accurate for performing vulnerability scanning and safety evaluation on the electric power information network.
Owner:GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +3
Active power distribution network assessment method
InactiveCN104636988AImprove work efficiencyImprove the quality of workData processing applicationsPower gridComputer science
Owner:STATE GRID CORP OF CHINA +2
Elevator risk evaluation method
The invention relates to an elevator risk evaluation method, and belongs to the technical field of elevator risk real-time evaluation and process and safety control. The elevator risk evaluation method comprises the steps that (1) an index analysis method and an analytic hierarchy process are used for analyzing factors which possibly cause elevator faults, and an elevator risk evaluation index hierarchical structure is built; (2) actually-measured parameter values of indexes of the elevator risk evaluation index hierarchical structure are obtained, and initialization processing is carried out on the actually-measured parameter values of the indexes; (3) the weight of the indexes of the elevator risk evaluation index hierarchical structure is determined through an artificial neural network; (4) risk evaluation is carried out on an elevator through a feed-forward neural network with a time sequence learning algorithm, and the elevator risk grades are divided. The elevator risk evaluation method has reference value and application value in a plurality of fields, and can be applied to risk evaluation of industrial boilers, large-sized power transformers, industrial pipelines and the like.
Owner:KUNMING UNIV OF SCI & TECH +1
Regional lightning disaster risk evaluation method
InactiveCN102722634ASolving Quantitative DifficultiesSpecial data processing applicationsRisk levelIndex system
The invention provides a regional lightning disaster risk evaluation method. The method is characterized by comprising the following steps of: (a), determining regional lightning disaster risk evaluation index systems U; (b), making danger level standards V for each evaluation index system; (c), calculating the weight coefficient W of each index by quoting an analytic hierarchy process; (d), calculating the membership degree of each quantitative index by quoting a membership degree function; (e), performing fuzzy comprehensive evaluation and calculating a correlation matrix; and (f) determining a risk level and a risk source and proposing lightning protective measures. The method is wide in application range, and meets the lightning risk evaluation in different industries such as flammables and explosives, railways, large-scale bridges and travels, and different types of buildings (structures). Various types of regional lightning risks are subjected to qualitative and quantitative comprehensive analysis by adopting a reasonable hierarchical comprehensive analysis method, so that the problem that influencing factors at each level are difficult to quantify is effectively solved.
Owner:湖南省防雷中心 +1
Mountain torrent disaster risk division and prediction method based on GIS (geographic information system)-neural network integration
ActiveCN108280553ASolve the problem of spatial scale uncertaintyReduce the impact of subjective arbitrarinessClimate change adaptationForecastingLinear relationshipIndex system
The invention relates to a mountain torrent disaster risk division and prediction method based on GIS (geographic information system)-neural network integration. The method includes the steps: S1 mining the association relationship between a risk factor and a risk grade in a mountain torrent disaster by the aid of association rules, identifying the risk factor and building a quantitative mountaintorrent disaster risk evaluation index system; S2 determining risk and vulnerability index system by an analytic hierarchy process and the weight of the system to generate feature layers; S3 stackingmountain torrent disaster risk and vulnerability distribution layers by ArcGIS to obtain a mountain torrent disaster risk distribution diagram; S4 performing clustering by an ISO maximum likelihood method, merging regions from bottom to top and performing qualitative analysis from top to bottom to form mountain torrent disaster risk division; S5 analyzing non-linear relationships among evaluationindexes, the risk grade and disaster data by an Elman neural network, and building a mountain torrent disaster risk evaluation and loss prediction model. The problem of spatial scale uncertainty in mountain torrent disaster evaluation in a changing environment can be solved, and the method can be widely used for evaluating mountain torrent disaster risks.
Owner:SUN YAT SEN UNIV
Earthquake disaster rescue command and dispatch system and method
ActiveCN104616093AUnderstand the actual extent of damageComprehensive Disaster Relief Situation InformationResourcesSeismic hazardEngineering
Provided is an earthquake disaster rescue command and dispatch system and a method thereof; the system consists of a command center subsystem, a remote sensing satellite subsystem, an unmanned plane subsystem, a police population information subsystem, a weather information subsystem, a medical information subsystem, a relief goods repertory subsystem and input / output interfaces; by analyzing disaster information and disaster rescue information collected by each aforementioned system, a hierarchical model of earthquake disaster rescue can be built by an analytic hierarchy process; meanwhile, based on the actual situations of former earthquake disaster rescue, respective disaster rescue plan and analytic hierarchy process disaster rescue parameter database can be built. When an actual earthquake disaster happens, the current disaster situations are analyzed by the analytic hierarchy process, and the disaster rescue plan is quickly determined. The designed system and method herein are more applicable to collecting relative information quickly as soon as the earthquake happens, and automatically selecting the rescue plan for the command dispatch of the disaster rescue.
Owner:BEIJING INST OF AEROSPACE CONTROL DEVICES +1
Method and system for optimizing software test case
InactiveCN103810104AReduce participationAvoid situations where test performance is affectedSoftware testing/debuggingMutation operatorSystem under test
The invention discloses a novel method and system for optimizing a software test case. According to the invention, the advantage of analytic hierarchy process on determining weighted values, as well as the technical advancement of the ant colony algorithm and genetic algorithm on determining the simplest and first priority ordering case subset are utilized. The method comprises the following steps: determining the weighted value of each functional requirement of a to-be-tested system by using the single hierarchical arrangement and total ordering of the analytic hierarchy process as well as the quantification of consistency testing; determining a test case subset, with full covering on all functional requirements and minimum operation cost, by combining the ant colony algorithm with the obtained weighted values and through an essential strategy, a redundancy strategy and a greedy strategy; determining a new estimation formula by combining the genetic algorithm with the obtained weighted values and on the basis of obtaining the simplest case subset; determining a test case sequence with highest error detection rate by a selection operator, a crossover operator and a mutation operator.
Owner:中国人民解放军63863部队
Active distribution network dynamic topology reconstitution method based on mixed artificial intelligence
ActiveCN103701117AImprove search abilityFast convergenceAc network circuit arrangementsLocal optimumAlgorithm
The invention discloses an active distribution network dynamic topology reconstitution method based on mixed artificial intelligence. Multiple improved artificial intelligence methods are adopted for optimizing solving, the superiority of various algorithms can be integrated, meanwhile the various artificial intelligence methods are improved during the process of combining various optimization algorithms, furthermore the astringency of the algorithms is improved, the defects such as locally optimal solution are avoided, three object functions are integrated in the optimization process, three different optimization objects are considered, and a corresponding Pareto optimal solution set is solved out; Since measurements of indexes such as on-off operation times and power supply volume are not constant, in order to establish a unified measurement model, all the indexes are converted into loss indexes according to respective conversion relations, and finally a dynamic analytic hierarchy process is adopted for deciding solutions in the Pareto optimal solution set, so that the optimal solution representing an optimal distribution network structure is obtained.
Owner:ZHEJIANG UNIV
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