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35results about How to "Science of Assessment Results" patented technology

Integrated risk assessment method for calculating operation uncertainty of electric transmission line

ActiveCN103914792AEffective Evaluation AnalysisThe comprehensive risk weight is scientific and reasonableData processing applicationsRisk levelDecision taking
The invention discloses an integrated risk assessment method for calculating the operation uncertainty of an electric transmission line. The integrated risk assessment method includes the following steps: (1) identifying and collecting characteristic factors for causing operation risks of the electric transmission line, determining risk characteristic indexes, and building an operation risk assessment index set of the electric transmission line, (2) fusing expert advice weights with a fusion theory, (3) using uncertain rational numbers to calculate reliability distribution to determine risk weights, and combining the risk weights and the fused expert advice weights in the step (2) to calculate integrated risk weights of the risk assessment index set, and (4) calculating a final integrated risk value in cooperation with section judgment matrixes, processing results, and judging risk levels. By means of the integrated risk assessment method, a subjective and objective analytical method is used in a combined mode, powerful supports are provided for finding potential operation risks as soon as possible, reducing the possible risks of line operation and reducing risk operation losses, and the integrated risk assessment method is the premise and the guarantee of scientifically and reasonably managing the risks and making decisions.
Owner:EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID +1

Power transmission network operating efficiency and benefit detection method considering new energy access

The invention relates to a power transmission network operating efficiency and benefit detection method considering new energy access. The power transmission network operating efficiency and benefit detection method comprises the steps of: 1, laying a system establishment foundation including (1) a foundation hierarchical structure of system construction and (2) sub-goal layer determination of a system; 2, detailing a three-grade index for constructing a foundational system, constructing foundation hierarchical structure and sub-goals based on the system determined in the step 1, and detailing sub-goals, so as to determine an index layer of the system, wherein the index layer comprises equipment operating efficiency, power grid scale efficiency index, company benefit index, social benefit index and environmental protection benefit index; 3, teasing out interactional relationships among the indexes based on a comprehensive evaluation index system obtained in the step 2, and utilizing a regression analysis model for determining grading intervals of the indexes; 4, and acquiring a preliminary judgment of index operating conditions by combining with actual operation historical data of the indexes based on the index system established in the step 2 and the index grading intervals determined in the step 3, and taking a classical domain obtained according to an index reasonable operation range as the foundation of model calculation.
Owner:STATE GRID CORP OF CHINA +2

Power transmission grid efficiency and benefit detection method based on Klee method and matter element extension model

The invention provides a power transmission grid efficiency and benefit detection method based on a Klee method and a matter element extension model. The method comprises the steps of: 1) based on an established power transmission grid efficiency and benefit comprehensive estimating system, using the Klee method to carry out pairwise comparison on indexes of each level, obtaining an important degree sort, and finally obtaining the calculation weight of each index; 2) defining a reasonable operation range of each evaluation index, obtaining the distances of each index to different evaluation levels, and obtaining a proximity according to a shortest distance formula; 3) for each index, calculating the proximities of the index relative to the different evaluation levels, substituting the proximities into a level evaluation formula, obtaining a comprehensive evaluation value of a matter element to be evaluated, and giving the deviation degree of the evaluation level; and 4), for the same data and sort, utilizing a hierarchy analytical method to calculate a comprehensive evaluation result, comparing the comprehensive evaluation result with the comprehensive evaluation value obtained in the step 3), comparing the coincidence degrees with a practical development condition, further carrying out sensitivity analysis on the evaluation model with the higher coincidence degree, and obtaining index having the largest evaluation result influence.
Owner:XI AN JIAOTONG UNIV +2

Building fire control safety big data health degree assessment method based on AHP (Analytic Hierarchy Process)

The invention provides a building fire control safety big data health degree assessment method based on AHP (Analytic Hierarchy Process). The method comprises the following steps that: S1) collectingand obtaining all data of a fire control system; S2) classifying all fire control detection item data according to different system categories, and meanwhile, giving one weight number m to a system which may be added into a fire control safety system in the future; S3) utilizing an expert scoring model to determine fire control system index weight: S1: establishing the expert sorting model, and S2: processing a level comparison answer; S4) utilizing the AHP to determine the fire control system index weight: S1: determining the hierarchical structure of the model, S2: comparing a scale, and pairwise comparing a matrix, and S3: verifying a result; and S5) determining a building fire control safety health degree score. The method provided by the invention is based on a statistical theory andis combined with a latest data mining theory implementation method, an expert scoring assessment and the AHP are adopted, historical data is taken as a model construction basis in advance, and a quick, scientific and objective assessment result can be obtained.
Owner:广东广业开元科技有限公司

Non-standard part supplier manufacturing capability analysis method and device based on analytic hierarchy process

The invention discloses a non-standard part supplier manufacturing capability analysis method and device based on the analytic hierarchy process. The method comprises steps that an analysis indicatordatabase is constructed, including multiple analysis indicator grades and corresponding analysis indicators; demands of a demand side are acquired to construct an evaluation model, including multipleanalysis indicator grades and analysis indicators; importance measure comparison of the analysis indicators is carried out for the analysis indicators grade by grade; an analysis indicator determination matrix is constructed step by step for the analysis indicator grades, conditions satisfying acceptable consistency are further determined, scoring rules and scores for each analysis indicator are further acquired, and effect scores are acquired through weighting; the effect scores of each analysis indicator are added to acquire the final evaluation score of each supplier; the final scores of the suppliers are ordered according to ordering rules. The method is advantaged in that through constructing the analysis indicator database, the corresponding evaluation model is rapidly and accuratelydetermined according to specific conditions of the demand side, and supplier evaluation accuracy and the speed are enhanced.
Owner:苏州索及信息技术有限公司

Method and device used for evaluating injection effect of injected information automatically

The present invention provides a method and device used for evaluating an injection effect of the injected information automatically. The method comprises the steps of establishing an information injection effect evaluation model comprising a plurality of predefined decision stages; obtaining the respective user population distribution at the decision stages of the information injection effect evaluation model at a first time point; obtaining the respective user population distribution at the decision stages of the information injection effect evaluation model at a second time point later than the first time point; based on the change of the respective user population distribution at the decision stages at the first time point and the change of the respective user population distribution at the decision stages at the second time point, evaluating the injection effect of the injected information at the aspect of the population distribution of the decision stages between the first time point and the second time point. The method and the device of the present invention can evaluate the injection effect of the information at the aspect of the influence on the overall audiences, so that an evaluation result is more scientific and reasonable, and the evaluation accuracy is improved.
Owner:BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD

High speed railway crosswind information collection and early warning method and system

The invention provides a high speed railway crosswind information collection and early warning system. The system comprises a crosswind information collection device, a current signal / numerical signal conversion device, a device for dynamically generating a reference threshold value of a crosswind disaster risk, an early warning program starting decision-making device, a positioning device, a train controlling device used for controlling the speed of a train, a storage device and a control device, wherein the control module serves as the core of the whole system, controls operation of all the devices, and also is used for being connected with external equipment such as an external computer device to achieve communication and control. The reference threshold value of the crosswind disaster risk is dynamically generated, and the historical conditions are continuously updated after the latest early warning happens in combination with the historical disaster occurrence conditions, so that compared with historical data, the risk pre-evaluation of a certain area is considered more completely and scientifically. The invention further provides a high speed railway crosswind information collection and early warning method.
Owner:NANJING UNIV OF SCI & TECH

Method used for crude oil long-distance pipeline environment risk evaluation

The invention discloses a method used for crude oil long-distance pipeline environment risk evaluation. The method comprises the following steps that: establishing the scoring table of a crude oil long-distance pipeline failure possibility, identifying main environment risk factors which can cause crude oil long-distance pipeline failure, making a qualitative and quantitative definition on each risk factor, endowing a corresponding score, and according to the synthesis score situation of each factor, dividing the pipeline failure into high, middle and low levels; establishing environmental consequence level division, and according to the level of sensitivity of the surrounding environmental receptor of the crude oil long-distance pipeline, dividing the environmental consequence which may be caused by pipeline leakage into three levels of being severe, more severe and slight; and establishing a crude oil long-distance pipeline environment risk evaluation matrix, and dividing the pipeline environment risk level into three levels, including a low environment risk level, a medium environment risk level and a high environment risk level. By use of the method, the environment safety level of the long-distance pipeline is comprehensively evaluated, an enterprise can be guided to carry out crude oil long-distance pipeline environment risk evaluation work, and an evaluation result is more scientific and comprehensive.
Owner:CHINA PETROLEUM & CHEM CORP +1

A comprehensive evaluation method based on the impact of distributed power access on distribution network

The invention discloses a comprehensive assessment method based on the effect of a distribution type electrical connection on a power distribution network. The comprehensive assessment method is characterized in that a comprehensive assessment index system of the effect of the distribution type electrical connection on the power distribution network, three-level index values under different distribution type electrical connection schemes are worked out by analyzing the power distribution network including a distribution type power source, a standard decision matrix of an assessment index is established, the weight coefficients of a one-level index, a two-level index and a three-level index are respectively obtained, accordingly, the comprehensive weight coefficient is determined, the comprehensive assessment satisfaction degrees of different distribution type electrical connection schemes are finally worked out, and the scheme with the largest comprehensive assessment satisfaction degree serves as the optimal distribution type electrical connection scheme. The comprehensive assessment method avoids the insufficient data information amount probably occurring through the single utilization of the object analysis method and also avoids the subject randomness of direct utilization the subject analysis method, and complex links of detecting and judging the matrix consistency are reduced while the judging fuzziness of people is taken into consideration.
Owner:HEFEI UNIV OF TECH

Remote sensing satellite stereoscopic image elevation precision quantitative evaluation method

The invention discloses a remote sensing satellite stereoscopic image elevation precision quantitative evaluation method. The method comprises the following steps: quantitatively evaluating a satellite stereoscopic image elevation positioning error caused by an attitude measurement data error in a satellite image imaging process; a satellite stereo image elevation positioning error caused by an orbit measurement data error in a satellite image imaging process is quantitatively evaluated; a satellite stereo image elevation positioning error caused by a time synchronization error in a satellite image imaging process is quantitatively evaluated; a satellite stereo image elevation positioning error caused by a geometric internal calibration result error in a satellite image processing process is quantitatively evaluated; a satellite stereo image elevation positioning error caused by a geometric external calibration result error in a satellite image processing process is quantitatively evaluated; and comprehensively evaluating the overall influence of various errors on the elevation accuracy of the stereoscopic image in the satellite image imaging process and the satellite image processing process, and obtaining the final elevation positioning error of the satellite stereoscopic image, namely the quantitative evaluation result of the elevation accuracy of the satellite stereoscopic image.
Owner:自然资源部国土卫星遥感应用中心

Lightning information collection and early warning method and system for high-speed railway

The invention provides a thunder and lightning information collection and early warning system for a high speed railway. The system comprises a thunder and lightning information collection device, a current signal / value signal conversion device, a device for dynamically generating a reference threshold of thunder and lightning disaster risks, a determining device startd by an early warning program, a locating device, a train controlling device for controlling the speed of a train, a storage device and a control device. A control module serves as a core of the whole system, controls operation of the devices on one hand, and is used for being connected with external devices including an external computer device and the like to achieve communication and control. In the system, the dynamic generating mode is adopted in the reference threshold for evaluating the thunder and lightning disaster risks, the historical disaster situations are combined, and the historical situations are continuously updated after new early warning is given, so that the risk pre-evaluation of a certain region is considered more completely and scientifically with contrast to historical data. The invention further provides a thunder and lightning information collection and early warning method for the high speed railway.
Owner:NANJING UNIV OF SCI & TECH

Electric energy quality synthesis evaluation system

The invention relates to a power quality comprehensive evaluation system in the technical field of the electric power application; in the invention, a power quality collecting module obtains all items of power quality indexes from an electric fence; a power quality index grading module divides the power quality indexes obtained from the power quality collecting module into setting grades according to national standard or international generally recognized requirements; a probability distribution matrix obtaining module obtains probability of the power quality in each grade, and then the probability of the power quality index in each grade is obtained for obtaining a probability distribution matrix; a weight vector obtaining module obtains weight vector of the power quality index; an evaluation quantized value obtaining module obtains the only quantized value of the power quality comprehensive evaluation according to the probability distribution matrix and the weight vectors of all theindexes; a power quality evaluation module compares the only quantized value with the evaluation system for obtaining power quality evaluation result. The system can really reflect the probability characteristics of the power quality indexes and can comprehensively and objectively carry out comprehensive evaluation to the power quality.
Owner:SHANGHAI JIAOTONG UNIV +1

Manufacturing industry information quantitative analysis method and device based on analytic hierarchy process

The invention discloses a manufacturing industry information quantitative analysis method and device based on an analytic hierarchy process, and the method comprises the steps: constructing an analysis index database for evaluating manufacturing industry information and a plurality of analysis index levels, wherein each analysis index level comprises a plurality of analysis indexes; acquiring a demand of a demand side for manufacturing industry information to construct an evaluation model, and matching the demand with the analysis indexes in the analysis index database step by step; comparinganalysis index importance measures in pairs step by step; constructing a judgment matrix step by step, and judging whether the judgment matrix meets an acceptable consistency condition or not; obtaining scoring rules and scores of the analysis indexes, and performing weighting to obtain effect scores; adding the effect scores to obtain final evaluation scores; and sorting the final evaluation scores according to a sorting rule. According to the invention, the analysis index database is constructed in advance, and the corresponding evaluation model is selected according to the specific situation of the demander for quick and accurate judgment, so that the accuracy and speed of manufacturing industry information evaluation are improved.
Owner:南京索及工业科技有限公司
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