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36results about How to "Computational objective" patented technology
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Power grid restoring capacity calculation method considering black-start process
ActiveCN105656040AComputational objectiveGet the global optimal solutionData processing applicationsAc network circuit arrangementsBlack startA-weighting
The invention discloses a method for calculating the power grid restoring capacity after power blackout. The method comprises the steps that related parameter information of black-start units, units to be restored and power transmission lines in a system is obtained; a weighting network connection matrix corresponding to the system is built; the sum of weighting capacities and corresponding per unit values of all the usable black-start units in power generation plants of all the usable black-start units are calculated; a generalized black-start unit node serves as the root node, and a minimal spanning tree T1 containing all the plant-station nodes is searched and generated; the average shortest distance D1 from the generalized black-start unit node in the tree T1 to nodes of all the units to be restored is calculated; the average shortest distance D2 from the generalized unit node in the tree T1 to rest load nodes is calculated; the average value of the D1 and the D2 is calculated; the power grid restoring capacity is calculated. The method for calculating the power grid restoring capacity after the power blackout has the advantages that contributions of the black-start units which are different in preferred sequence are distinguished, so that calculation of the power grid restoring capacity is more objective.
Owner:STATE GRID SHANDONG ELECTRIC POWER COMPANY WEIFANG POWER SUPPLY +1
Comprehensive analysis method for maintainability of radar structure
ActiveCN102880808AAccurate calculationComputational objectiveSpecial data processing applicationsRadarMaintainability
The invention discloses a comprehensive analysis method for maintainability of the radar structure. The comprehensive analysis method includes the following steps of firstly, determining types and the number of maintenance events and maintenance operation; secondly, determining maintenance schemes and fault rate of a component module; thirdly, virtually simulating during maintenance, and computing a quantized value of a single influencing factor of the maintenance events; fourthly, computing a quantized value of a single influencing factor of the radar structure; fifthly, determining a comment set and computing factor fuzzy evaluation matrix of a mechanism system / component module of the radar structure; and sixthly, computing maintainability fuzzy evaluation matrix of the mechanism system / component module of the radar structure. The comprehensive analysis method has the advantages that by simulating maintenance and determining maintainability influencing fact quantizing method, maintainability design of the radar structure is qualitatively and quantitatively analyzed and evaluated, weak links of the maintainability design are analyzed to instruct improvement of the design, and an accurate and objective maintainability evaluation method is provided for research stage of construction schemes of the ground elevation maneuvering radar structure.
Owner:CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
Method for determining theoretic porosity of fabric through image method
InactiveCN103471974ATightness is objective and accurateQuick calculationPermeability/surface area analysisPorosityCentral line placement
The invention relates to a method for determining the theoretic porosity of a fabric through an image method, and in particular relates to a method for determining the theoretic porosity of a latticed sparse fabric through an image method. The method comprises the following steps of analyzing and processing a sparse fabric image through a digital image processing technology to obtain a theoretic porosity index; converting a gray image into a binary image according to a gray histogram two-peak method threshold of the fabric image, setting the pixel of a yarn region in a binary matrix corresponding to the binary image as 1, respectively projecting the binary matrix in the warp yarn direction and the weft yarn direction, and analyzing the central line positions of warp yarns and weft yarns; analyzing a cut image peripheral region according to the central positions of side yarns, wherein the quantity of the warp yarns and the quantity of the weft yarns in a new image are integers; acquiring the diameters of the yarns according to analysis on a wavy curve formed by projection of the binary matrix; calculating warp tightness and weft tightness so as to obtain the theoretic porosity index. By the adoption of the method, the theoretic porosity index can be objectively, accurately and quickly calculated.
Owner:DONGHUA UNIV
Live broadcast room recommendation method, storage medium, electronic device and system
ActiveCN109033233ASimilarity fitComputational objectiveSpecial data processing applicationsBroadcastingQuality Score
The invention provides a Live broadcast room recommendation method, a storage medium, an electronic device and a system, which relate to the big data recommending field and can recommend a recommending live broadcasting room of user preference according to a designated live broadcasting room, the method in particular comprising the following steps: calculating quality scores of N live broadcastingrooms according to a preset live broadcasting room quality scoring process, wherein N is an integer greater than 1, and the N live broadcasting rooms are a live broadcasting room group to be scored.A similarity of a common label between each of the live broadcast groups to be rated and a designated live broadcast is calculated. The similarity between the quality score and the common label is inputted into the preset recommendation index algorithm to obtain the recommendation index of each live broadcast in the inter-broadcast group to be graded. A live broadcast room whose recommendation index exceeds a preset recommendation index threshold is used as the recommendation live broadcast room, or the recommendation index is sorted, and a preset number of live broadcast rooms in front of thesorting are used as the recommendation live broadcast rooms. The invention can better calculate the similarity between live broadcasts.
Owner:WUHAN DOUYU NETWORK TECH CO LTD
Eyelid topology morphological feature extraction method based on deep learning
PendingCN112837805AMatching time is shortEasy to getAcquiring/recognising eyesMedical automated diagnosisEyelidFeature extraction
The invention discloses an eyelid topology morphological feature extraction method based on deep learning. The method specifically comprises the following steps: collecting an electronic digital photo of a normal person, processing the electronic digital photo, constructing an ROI image training set, and inputting the ROI image training set into a to-be-trained convolutional neural network to obtain a trained convolutional neural network; positioning an eye region-of-interest (ROI) position by using a facial recognition method for a to-be-detected electronic digital photo to obtain a to-be-detected ROI image; inputting the to-be-detected ROI image into the trained convolutional neural network to output an image with an eyelid contour line and a cornea contour line, determining a circular scale and a pupil center of the to-be-detected electronic digital photo, and extracting eyelid topology morphological characteristics of a single eye. According to the method, the eyelid and cornea structures are segmented by using the convolutional neural network; after the center of the pupil is determined by using Mean Shift clustering, the parameters of the related structure of the eyelid are automatically calculated, so that the accuracy equivalent to that of manual measurement is obtained.
Owner:ZHEJIANG UNIV
Cycle division method and apparatus of sedimentary stratum
ActiveCN107884830ADivision to achieveComputational objectiveEarth material testingSeismic signal processingLithologyDecomposition
The invention provides a cycle division method and apparatus of a sedimentary stratum. The method comprises: pretreatment is carried out on obtained data reflecting an original stratum sedimentary environment and a lithological change to obtain pretreatment data; empirical mode decomposition is carried out on the pretreatment data to obtain a plurality of intrinsic modal functions; conversion is carried out on each intrinsic modal function to obtain an instantaneous frequency curve corresponding to the intrinsic modal function; according to the instantaneous frequency curve, a Milankovitch cycle curve is obtained; on the basis of the Milankovitch cycle curve, an accommodating space changing curve is obtained; and according to the accommodating space changing curve, an accommodating spatialascending half cycle and an accommodating spatial descending half cycle are obtained. According to the division method, the calculation process is objective and the influence on the process by the human factor is low. And the division method has high operability.
Owner:CHINA PETROLEUM & CHEM CORP +1
Domain name reputation assessment method and apparatus
InactiveCN108510332AComputational objectiveImprove objectivityTransmissionMarketingDomain nameFeature extraction
The invention provides a domain name reputation assessment method and apparatus. The method comprises the steps of obtaining a target domain name; performing feature extraction on the target domain name to obtain target domain name features; and inputting the target domain name features to a pre-trained domain name reputation grading model, thereby obtaining a domain name reputation score output by the domain name reputation grading model, wherein the domain name reputation grading model is obtained by pre-training domain name training sample features obtained by performing feature extractionon domain name training samples marked with objective reputation scores. Therefore, the objectivity of domain name reputation assessment can be improved.
Owner:CHINA INTERNET NETWORK INFORMATION CENTER
A method and system for evaluating, charging, selecting, and publishing advertising effects
PendingCN109523284AComputational objectiveReasonable calculationMarketingTemporal informationGeographic regions
A method and system for evaluating, charging, selecting, and publishing advertising effects is disclosed which are capable of accurately evaluating the effectiveness of the advertisement on the movable advertisement bearing object. The evaluation method comprises the following steps: a plurality of geographic regions are preset, and each geographic region corresponds to different advertising effect coefficients; Receiving a moving trajectory of the advertisement bearing object, and determining a geographical area through which the advertisement bearing object passes and a length of stay in thegeographical area according to position information and time information of each positioning point in the moving trajectory; The advertisement effect of the advertisement bearing object is calculatedaccording to the advertisement effect coefficient corresponding to each geographical area and the length of stay in these geographical areas.
Owner:SHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS CO LTD
Transformer area line loss data processing method and device based on Canopy-Kmedoids algorithm, and medium
PendingCN112966970AImprove accuracyImprove objectivityCharacter and pattern recognitionResourcesData setAlgorithm
The invention provides a transformer area line loss data processing method and device based on a Canopy-Kmedoids algorithm, and a medium, and the method comprises the steps: collecting basic data information of a power distribution network transformer area, wherein the basic data information comprises static parameters of the transformer area, and screening a transformer area sample set with a stable line loss rate based on the static parameters; and analyzing transformer area line loss rate influence factors based on the basic data information, selecting transformer area static parameters with a large influence degree, adopting a Canpoy algorithm to carry out coarse clustering on a data set, taking a central point of a Canpoy subset as an initial central point of a K-medoids algorithm to carry out fine clustering, calculating the sum of squared errors (SSE) of each clustering scheme, making an elbow diagram according to the sum of squares of errors of each clustering scheme, selecting a K value at an inflection point of the elbow diagram as an optimal K value as an optimal result, performing line loss calculation of the transformer area by using the optimal result, and controlling a power grid according to a line loss calculation result. The method improves the clustering effect, and enables the line loss calculation to be accurate and objective.
Owner:STATE GRID JIBEI ELECTRIC POWER COMPANY +2
Sensitive equipment fault rate calculation method and device
InactiveCN109283416AObjective failure rateComputational objectiveElectrical testingComplex mathematical operationsNormal densitySimulation
The invention provides a sensitive equipment fault rate calculation method and device. The method comprises the following steps of obtaining sample data of a voltage tolerance curve corresponding to sensitive equipment; calculating an uncertain region boundary of the voltage tolerance curve and a probability density function corresponding to a severity index according to the sample data; obtaininga practical voltage magnitude value and the practical voltage sag duration time when the sensitive equipment generates the voltage sag; and calculating the fault rate of the sensitive equipment afterthe occurrence of the voltage sag according to the practical voltage magnitude value, the practical voltage sag duration time, the probability density function and the uncertain region boundary. By implementing the sensitive equipment fault rate calculation method and device, the fault rate of the sensitive equipment can be objectively calculated; the artificial objective influence is avoided; the calculation accuracy is high; and effective reference can be further provided for timely use of measures to reduce the influence due to the voltage sag.
Owner:GUANGDONG POWER GRID CO LTD +1
Technical resource productivity analysis method, device and equipment, storage medium
PendingCN111754120AAccurate calculationComputational objectiveResourcesAnalysis methodOperations research
The invention discloses a technical resource productivity analysis method, device and equipment, and a storage medium. The method comprises the following steps: firstly, obtaining basic parameters ofto-be-analyzed technical resources, wherein the basic parameters comprise a self-owned personnel operation rate, an outsourcing personnel operation rate and a task execution rate; and then, substituting the basic parameters into a pre-constructed capacity gap calculation formula to obtain a capacity gap calculation result of the to-be-analyzed technical resource; and further, carrying out capacityanalysis on the to-be-analyzed technical resource according to the capacity gap calculation result to obtain an analysis result. Visibly, based on the productivity gap calculation formula, whether the technical resource gap exists or not or whether the technical resource is excessive or not can be quickly, accurately and objectively calculated, so that whether the outsiders are introduced or released can be determined according to the calculation result of the capacity gap, and the efficiency and the accuracy of judging whether the capacity of the technical resource is enough or not can be improved.
Owner:BANK OF CHINA
Electric quantity supplementing method based on clustering and PQUI recognition algorithm
PendingCN112184477AComputational objectiveQuick calculationDrawing from basic elementsForecastingCluster algorithmAlgorithm
The invention discloses an electric quantity supplementing method based on clustering and a PQUI recognition algorithm, and relates to the field of power grid operation and maintenance. At present, the electricity stealing amount cannot be accurately calculated, the difference between the calculated electricity stealing amount and the actual electricity stealing amount is too large, and users andelectric power companies are difficult to keep fair. According to the invention, the electricity stealing time of the user is judged according to the load data of the user, then the electricity stealing manipulation is determined according to the relationship between the load data, the correction coefficient is determined according to the electricity stealing behavior, and finally the compensationelectric quantity is calculated according to the correction coefficient. And a clustering algorithm and / or a PQUI algorithm are / is adopted during calculation of the number of electricity stealing days. According to the technical scheme, the clustering algorithm and the PQUI recognition algorithm are adopted to calculate the corresponding electricity stealing amount, the calculation matching performance is good, the accuracy is high, the collected data can meet the requirements, the supplementary electricity amount of the electricity stealing user can be accurately, objectively and quickly calculated, the supplementary electricity amount is made to be consistent with the actual electricity amount, and the fairness of electricity utilization is improved.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER +3
Ordering method for energy saving generation dispatching
ActiveCN104504532AImprove applicabilityComputational objectiveResourcesSystems intergating technologiesProgram planningElectric power system
The invention provides an ordering method for energy saving generation dispatching. The ordering method for the energy saving generation dispatching is a method considering a plurality of types of atmospheric pollutant emission as well as correcting and is characterized in that atmospheric pollutant emission factors of an unit are introduced on the basis of the energy saving generation dispatching method, the air quality is taken into account, and the ordering score is modified; an effective tool is provided for preparing a day-ahead generation schedule. The ordering method has the advantages that the actual power system operation management mode is taken into full account; the ordering method is closely linked to the existing energy saving generation dispatching, so that the practicability is high; the ordering method can be included into the existing generation schedule as a functional module; the calculation process is objective, the development is easy, the development efficiency is high, and the practicability is improved.
Owner:POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD
Tibetan language paper plagiarism detection method and system
PendingCN112380834AImprove detection efficiencyAddress plagiarismSemantic analysisCharacter and pattern recognitionAlgorithmPlagiarism detection
The invention provides a Tibetan language paper plagiarism detection method and system, and relates to the technical field of modern education. Aiming at three different plagiarism phenomena of continuous text plagiarism, semantic rewriting plagiarism and translation plagiarism, the invention provides a longest common subsequence algorithm and an improved twin long-short-term memory network methodrespectively. Academic paper pre-detection based on abstract document vectors and a weight distribution strategy based on chapter positions are adopted to improve retrieval efficiency.
Owner:MINZU UNIVERSITY OF CHINA +1
Method for measuring sawtooth degree of edge pixels
ActiveCN111462105AComputational objectiveAvoid affecting the visual effectImage analysisTesting optical propertiesHuman eye
The invention provides a method for measuring the sawtooth degree of edge pixels. The method comprises the following steps: obtaining a picture with an original image; extracting a to-be-measured contour of the original image; measuring a distance R from a contour point in the to-be-measured contour to the center of a preset circle of the original image, measuring an included angle a formed by a connecting line between the contour point and the center of the circle and a horizontal line, and calculating a difference d between the distance R and the radius r of the preset circle; generating a deviation curve d = d (a) between the difference value d and the included angle a by taking the included angle a as an independent variable and the difference value d as a dependent variable; and calculating the sawtooth degree of the to-be-measured contour according to the dispersion degree of the deviation curve. Photographing equipment is used for photographing to simulate the observation effectof human eyes, the edge pixel sawtooth degree is calculated by quantizing the photographed photo and then extracting the related parameters of the original image in the photo, so that the edge pixelsawtooth degree can be calculated and quantized more objectively, and the visual effect is prevented from being influenced by the excessively large edge pixel sawtooth degree.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
Trade friction early warning model based on big data classification algorithm
InactiveCN108108755AQuick calculationComputing ScienceCharacter and pattern recognitionResourcesData dredgingMonitoring system
The present invention relates to the technical field of economic operation monitoring system, especially to a trade friction early warning model based on a big data classification algorithm. The method of the model comprises the steps of: the step 1: constructing data mark and trade friction system index and trade friction system index groups; the step 2: constructing an expert scoring model; thestep 3: constructing an SVM classifier; the step 4: training a classification model; the step 5: arranging a trade friction early warning interval; and the step 6: determining an application model prediction result and an application model prediction result interval. The method provided by the invention is based on the statistics theory, combines the newest data excavation theory enforcement method, employs the expert scoring assessment model and an analytic hierarchy process and takes historical data as a basis of model construction to achieve rapid, scientific and objective calculation of atrade friction index result; and moreover, an interval classification algorithm is provided by the model to calculate a trade friction risk grade interval to provide a trade friction risk prediction for the calculated trade friction result.
Owner:广东广业开元科技有限公司
Financial market risk early warning method in internet environment
InactiveCN109934503ARepresentativeWide coverageFinanceWeb data indexingThe InternetEarly warning model
The invention discloses a financial market risk early warning method in an internet environment, which comprises the following steps: 1, preprocessing data; 2, selecting emotion seed words by using aTF algorithm, expanding an emotion dictionary by using Word2vec, defining a degree adverb weight, and calculating a text emotion intensity index; and 3, using an MF-DCCA model to calculate a cross multi-fractal spectrum; 4, constructing a characteristic index which influences the stock abnormal income; and 5 constructing a stock abnormal income prediction analysis model. According to the method,a more accurate risk early warning model can be constructed, so that more accurate risk prediction is realized, a basis is provided for financial market supervision, and a reference is provided for investor investment decision making.
Owner:HEFEI UNIV OF TECH
Method for evaluating slope stability of bent toppled rock mass with large bending degree
ActiveCN113252468AComputational objectiveSimple formulaMaterial strength using tensile/compressive forcesMaterial strength using steady bending forcesSlope stabilityInteraction forces
The invention relates to the field of rock mass slope stability evaluation, and aims to provide a method for evaluating the slope stability of a bent toppled rock mass with a large bending degree. The method comprises the steps of (1) acquiring rock stratum parameters of a stratified rock slope; (2) dividing a free bending area and a coordinated bending area; (3) testing the stability of the free bending area; (4) calculating the interaction force between rock stratums of the coordinated bending area; and (5) judging the stability of the slope toe rock stratum and the whole slope. Due to the fact that the bending degree of the rock stratum of the large-deformation toppled slope is close to the arc shape, on the basis of a traditional linear cantilever beam method, the rock stratum is assumed to be in the arc shape, the limitation of the cantilever beam method is improved, and the large-bending-degree toppled slope can be evaluated. Due to the fact that the formula is simple and clear and the number of required rock parameters is small, the method is short in time consumption and low in cost; the calculation is objective, and manual parameter setting is not needed; and the stability of the bent toppled slope with a large bending degree can be accurately calculated.
Owner:ZHEJIANG UNIV
A calculation method of power grid resilience considering black start process
ActiveCN105656040BComputational objectiveGet the global optimal solutionData processing applicationsAc network circuit arrangementsElectricityPower station
The invention discloses a method for calculating the power grid restoring capacity after power blackout. The method comprises the steps that related parameter information of black-start units, units to be restored and power transmission lines in a system is obtained; a weighting network connection matrix corresponding to the system is built; the sum of weighting capacities and corresponding per unit values of all the usable black-start units in power generation plants of all the usable black-start units are calculated; a generalized black-start unit node serves as the root node, and a minimal spanning tree T1 containing all the plant-station nodes is searched and generated; the average shortest distance D1 from the generalized black-start unit node in the tree T1 to nodes of all the units to be restored is calculated; the average shortest distance D2 from the generalized unit node in the tree T1 to rest load nodes is calculated; the average value of the D1 and the D2 is calculated; the power grid restoring capacity is calculated. The method for calculating the power grid restoring capacity after the power blackout has the advantages that contributions of the black-start units which are different in preferred sequence are distinguished, so that calculation of the power grid restoring capacity is more objective.
Owner:STATE GRID SHANDONG ELECTRIC POWER COMPANY WEIFANG POWER SUPPLY +1
Method for quantifying reliability indexes of intelligent electric energy meter in typical environment
PendingCN110533340AComputational objectiveAccurate calculationResourcesComplex mathematical operationsState of artEntropy weight method
The invention discloses a method for quantifying reliability indexes of an intelligent electric energy meter in a typical environment. The invention relates to the technical field of intelligent ammeter reliability comprehensive evaluation. The objective of the invention is to solve the problems of poor objectivity and low accuracy of reliability index analysis of an intelligent electric energy meter in the prior art. According to the method, an intelligent electric energy meter reliability index system in a typical environment is constructed according to regional characteristics of the typical environment; an improved entropy weight method is adopted to calculate the first-level index weight and the corresponding second-level index weight in the index system, then the comprehensive weightof the second-level index is calculated according to the first-level index weight value and the corresponding second-level index weight value, and finally the quantification process of the reliability index of the intelligent electric energy meter in the typical environment is completed. Typical environment parameter indexes influencing the reliability of the intelligent electric energy meter areprovided, and a basis is provided for subsequent targeted analysis of the influence degree of extreme environment parameters on the reliability of the intelligent electric energy meter.
Owner:STATE GRID HEILONGJIANG ELECTRIC POWER CO LTD ELECTRIC POWER RES INST
Comprehensive analysis method for maintainability of radar structure
ActiveCN102880808BAccurate calculationComputational objectiveSpecial data processing applicationsRadarMaintainability
The invention discloses a comprehensive analysis method for maintainability of the radar structure. The comprehensive analysis method includes the following steps of firstly, determining types and the number of maintenance events and maintenance operation; secondly, determining maintenance schemes and fault rate of a component module; thirdly, virtually simulating during maintenance, and computing a quantized value of a single influencing factor of the maintenance events; fourthly, computing a quantized value of a single influencing factor of the radar structure; fifthly, determining a comment set and computing factor fuzzy evaluation matrix of a mechanism system / component module of the radar structure; and sixthly, computing maintainability fuzzy evaluation matrix of the mechanism system / component module of the radar structure. The comprehensive analysis method has the advantages that by simulating maintenance and determining maintainability influencing fact quantizing method, maintainability design of the radar structure is qualitatively and quantitatively analyzed and evaluated, weak links of the maintainability design are analyzed to instruct improvement of the design, and an accurate and objective maintainability evaluation method is provided for research stage of construction schemes of the ground elevation maneuvering radar structure.
Owner:CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
Sedimentary strata cycle division method and device
ActiveCN107884830BDivision to achieveComputational objectiveEarth material testingSeismic signal processingAlgorithmClassical mechanics
Owner:CHINA PETROLEUM & CHEM CORP +1
A live room recommendation method, storage medium, electronic device and system
ActiveCN109033233BSimilarity fitComputational objectiveDigital data information retrievalSpecial data processing applicationsTelecommunicationsData science
The invention discloses a live broadcast room recommendation method, storage medium, electronic equipment and system, and relates to the field of big data recommendation, which can recommend the user's preferred live broadcast room for the user according to the specified live room, and specifically includes the following process: according to the preset The assumed live room quality scoring process calculates the quality scores of N live rooms, where N is an integer greater than 1, and the N live rooms are groups of live rooms to be scored. Calculate the similarity of the common label between each live room in the live room group to be rated and the specified live room. Input the quality score and the similarity of the common label into the preset recommendation index algorithm to obtain the recommendation index of each live room in the live room group to be rated. The live broadcast rooms whose recommendation index exceeds the preset recommendation index threshold are used as the recommended live broadcast rooms, or the recommendation indexes are sorted, and the preset number of live broadcast rooms with the highest ranking are used as the recommended live broadcast rooms. The present invention can better calculate the similarity between live broadcasts.
Owner:WUHAN DOUYU NETWORK TECH CO LTD
Evaluation method for the stability of curved toppling rock mass slopes with a large degree of curvature
ActiveCN113252468BSimple formulaFew rock parametersMaterial strength using tensile/compressive forcesMaterial strength using steady bending forcesCantilevered beamClassical mechanics
The invention relates to the field of stability evaluation of rock mass slopes, and aims to provide an evaluation method for the stability of curved toppling rock mass slopes with a large degree of curvature. Including: (1) Obtaining the stratum parameters of layered rock slope; (2) Dividing the free bending area and the coordinated bending area; (3) Testing the stability of the free bending area; (4) Calculating the interaction between rock layers in the coordinated bending area (5) Judging the stability of the rock formation at the foot of the slope and the entire slope. Because the bending degree of the rock formation of the large deformation toppled slope is relatively close to the circular arc shape, the present invention improves the limitation of the cantilever beam method by assuming the rock formation as a circular arc on the basis of the traditional linear cantilever beam method, making it Capable of evaluating toppled slopes with large degrees of curvature. Due to the concise formula and few required rock parameters, the method of the present invention is time-consuming and low-cost; the calculation is objective and does not need to manually set parameters; and it can accurately calculate the stability of a curved toppling slope with a large degree of curvature.
Owner:ZHEJIANG UNIV
Sorting method for energy-saving power generation dispatch
ActiveCN104504532BImprove applicabilityComputational objectiveResourcesSystems intergating technologiesElectric power systemComputer module
The invention provides an ordering method for energy saving generation dispatching. The ordering method for the energy saving generation dispatching is a method considering a plurality of types of atmospheric pollutant emission as well as correcting and is characterized in that atmospheric pollutant emission factors of an unit are introduced on the basis of the energy saving generation dispatching method, the air quality is taken into account, and the ordering score is modified; an effective tool is provided for preparing a day-ahead generation schedule. The ordering method has the advantages that the actual power system operation management mode is taken into full account; the ordering method is closely linked to the existing energy saving generation dispatching, so that the practicability is high; the ordering method can be included into the existing generation schedule as a functional module; the calculation process is objective, the development is easy, the development efficiency is high, and the practicability is improved.
Owner:POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD
A Calculation Method of Distribution Network Inspection Period Based on Multidimensional Matrix Decision
The invention discloses a method for calculating the distribution network inspection period based on multidimensional matrix decision-making. The operation is as follows: collect distribution network sample data, and the distribution network data includes health index and importance index data; Empirical health and importance evaluation; standardize the collected data; after obtaining the standardized data, calculate its information gain rate, build a decision tree, and then determine the health and importance of the line, and then according to the health and the importance decision matrix to obtain the inspection period. The invention takes the indexes in various fields of the line as a reference, and greatly reduces the subjectivity of manual judgment. Using the judgment of professionals as a classification sample, fully expand the use of the rich experience of professionals, greatly reduce manpower input, enable the calculation of the inspection cycle of the entire network and the whole line, and use real-time / quasi-real-time / recent indicators for automatic discrimination , which greatly reduces the hysteresis of the judgment result.
Owner:云南电网有限责任公司信息中心 +1
Data input method and device for network security index calculation
InactiveCN110493035AComputational objectiveImprove accuracyNeural architecturesData switching networksData setMulti dimensional
The invention discloses a data input method for network security index calculation, and the method comprises the steps: carrying out the data partitioning according to obtained network security data,and obtaining first network security data; performing data processing on the first network security data to obtain second network security data; constructing an equal-length multi-dimensional vector by utilizing the second network security data; and forming a data set by the equal-length multi-dimensional vectors, and inputting data. The invention further discloses a data input device for calculating the network security index. According to the data input method and device for network security index calculation provided by the embodiment of the invention, the accuracy of a network security index calculation model can be improved.
Owner:GUANGZHOU UNIVERSITY
A detection method for iron ore powder assimilation reaction temperature and assimilation reaction speed
ActiveCN109283212BAccurate calculationComputational objectiveMaterial resistanceInvestigating phase/state changeReaction temperatureElectric signal
The invention discloses a detection method for iron ore powder assimilation reaction temperature and assimilation reaction speed, belonging to the technical field of iron ore powder sintering. A detection method of iron ore powder assimilation reaction temperature and assimilation reaction speed of the present invention uses a detection device equipped with electrodes to detect the electrical signal and temperature change with time during the assimilation reaction process of iron ore powder sample , judge the assimilation temperature and the time t required for the reaction process through the change of the electrical signal, and then use the time t and the distance δ between the electrodes to calculate the assimilation reaction rate. The invention provides a detection method for iron ore powder assimilation reaction temperature and assimilation reaction speed, which can accurately detect the iron ore powder assimilation temperature and assimilation reaction speed.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
Method and device for determining ideal power generation progress index of power plant
ActiveCN104715289BLoad balancingReasonable power generation planForecastingResourcesPower gridEngineering
Owner:POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD
Method and device for detecting fitting degree of numeral garment
PendingCN113052183AShorten assessment timeImprove the efficiency of fit detectionCharacter and pattern recognitionManufacturing computing systemsAlgorithmIndustrial engineering
The invention provides a method and a device for detecting fitting degree of numeral garment. The method comprises the steps: setting numeral garment fitting degree operators corresponding to different sizes through a key feature point set of a plurality of known sample numeral garment, and carrying out the detection of the fitting degree of the numeral garment through the set numeral garment fitting degree operators and a key feature set of to-be-detected numeral garment. According to the method, the fitting degree of the to-be-detected numbered sample garment is accurately and objectively calculated, the fitting degree evaluation time of the sample garment is effectively shortened, manpower resource waste caused by manual fitting degree detection is avoided, and the fitting degree detection efficiency of the sample garment is effectively improved.
Owner:BEIJING INST OF CLOTHING TECH
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