Product
Feature
Quick Research
Generate reliable direction feasibility study reports for your R&D in just a few steps.
Technical Q&A
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
Find Solutions
As an expert in R&D theories, this can generate solutions to your technical problems instantly.
Evaluate Feasibility
Analyze your overall solution with one click, know your potential R&D risks in advance.
Monitor Landscape
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
51 results about "Dynamic screening" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
The Dynamic Screening List or DSL is a great product for pro-actively screening your client base. It is ideal for companies that have many sales to the same set of clients on a repeated basis.
Dynamic message filtering
ActiveUS20050076084A1Reduce in quantityMake fastError detection/correctionGenetic modelsSpammingWhitelist
Dynamically filtering and classifying messages, as good messages, bulk periodicals, or spam. A regular expression recognizer, and pre-trained neural networks. The neural networks distinguish “likely good” from “likely spam,” and also operate at a more discriminating level to distinguish among the three categories above. A dynamic whitelist and blacklist; sending addresses are collected when the number of their messages indicates the sender is good or a spammer. A dynamically selected set of regular expressions input to the neural networks.
Owner:MAILGATE LLC
System and method for providing dynamic screening of transient messages in a distributed computing environment
ActiveUS7117533B1Efficient detectionMemory loss protectionDigital computer detailsMessage queueDistributed Computing Environment
A system and method for providing dynamic screening of transient messages in a distributed computing environment is disclosed. An incoming message is intercepted at a network domain boundary. The incoming message includes a header having a plurality of address fields, each storing contents. A set of blocking rules is maintained. Each blocking rule defines readily-discoverable characteristics indicative of messages infected with at least one of a computer virus, malware and bad content. The contents of each address field are identified and checked against the blocking rules to screen infected messages and identify clean messages. Each such clean message is staged into an intermediate message queue pending further processing.
Owner:MCAFEE LLC
Method and system for on-line dynamical screening of electric power system
InactiveUS6868311B2Removes conservative natureEnergy preciseMechanical power/torque controlLevel controlTime domainAlgorithm
A system for on-line dynamic screening of contingencies comprising postulated disturbances which an electric power system may experience, the system comprising a dynamic contingency screening program for evaluating a plurality of contingencies with a plurality of contingency classifiers based on the method of finding the controlling unstable equilibrium point of the power system known as the boundary of stability region based controlling unstable equilibrium point method by sequentially applying the contingencies to a network islanding problem classifier, S.E.P problem classifier, a large stability regions classifier, an exist point problem classifier, a ray adjustment problem classifier, an energy function problem classifier, a CUEP convergence problem classifier, and a controlling UEP (unstable equilibrium point) classifier to form a first group of stable contingencies and a second group of unstable or undecided contingencies, and a time-domain simulation program for determining which of the second group of contingencies are unstable.
Owner:THE TOKYO ELECTRIC POWER CO INC +1
Dynamic screening and comprehensive weight setting method for low-voltage transformer area line loss rate analysis indexes
ActiveCN104809660AHigh precisionReasonable analysisData processing applicationsThree levelTransformer
The invention discloses a dynamic screening and comprehensive weight setting method for low-voltage transformer area line loss rate analysis indexes, including the following steps of: collecting and summarizing low-voltage transformer area line loss rate analysis indexes, and establishing a first-level index system of a low-voltage transformer area line loss rate; dynamically screening the first-level index system by a principal component analysis, screening out a low-dimensionality second-level index system of the low-voltage transformer area line loss rate, using the low-voltage transformer area line loss rate as a third-level index, and thereby obtaining the dynamic index system, including three levels, of the low-voltage transformer area line loss rate; working out the comprehensive weight of the second-level indexes to the third-level indexes in the dynamic index system by a step analysis-factor analysis method, and assessing the contribution rate of each second-level index to the low-voltage transformer area line loss rate according to the obtain comprehensive weight. According to the dynamic screening and comprehensive weight setting method provided by the invention, on the one hand, a reference base is provided for analyzing the low-voltage transformer area line loss rate by a power supply enterprise; in addition, the contribution rates of the indexes to the line loss rate are assessed, thus being conductive to assisting the power supply enterprise to perform targeted management and transformation to the low-voltage transformer area line loss rate.
Owner:SOUTH CHINA UNIV OF TECH
Information pushing method and device based on kafka, equipment and storage medium
PendingCN111666490AImprove push efficiencyRealize accurate pushDigital data information retrievalBuying/selling/leasing transactionsService informationProcessing
The embodiment of the invention belongs to the field of data analysis, and relates to an information pushing method and device based on kafka, computer equipment and a storage medium. The method comprises the steps: generating a group category according to a preset user operation event and a dynamic screening condition attribute; constructing a point burying event, collecting user data of a user through the point burying event, and storing the user data in a distributed search engine ElasticSearch; the method comprises the steps of configuring a distributed message publishing and subscribing system kafka and processing user data by adopting a distributed calculation engine Spark to obtain a group category corresponding to each user, determining a to-be-recommended group category from the group categories according to service information, and pushing the service information to the users included in the to-be-recommended group category. According to the invention, accurate pushing is realized for users of different group categories, and the service information pushing efficiency is improved. The invention also relates to a blockchain technology, and the user data can be stored in theblockchain node.
Owner:CHINA PING AN PROPERTY INSURANCE CO LTD
Big data processing method capable of distinguishing state of intelligent television
InactiveCN105472412AMeet collection needsReduce Difficulty of DiggingSelective content distributionData acquisitionData quality
The invention discloses a big data processing method capable of distinguishing states of intelligent televisions, and relates to the data acquisition analysis field for dynamic screening of television states. Through a whole system formed by televisions and a cloud server, states of intelligent televisions are effectively registered, then a label adding way during data acquisition and storage is utilized to conduct archiving of data sources, and data mining analysis values are increased. Intelligent television terminals actively or passively modify states of the terminals themselves, upload the states to a cloud end, dynamically refresh state databases of intelligent televisions, conduct ID matching for each piece of uploaded data, put on state labels, and carry out later-period storage and analysis for verification. The data quality is improved by means of product state identification, data itself is made to match generation backgrounds, and data values are greatly increased while the data mining difficulty is reduced.
Owner:SICHUAN CHANGHONG ELECTRIC CO LTD
Wireless subscriber loyalty system and method
InactiveUS7747461B2Readily apparentLow efficacyAccounting/billing servicesSpecial service for subscribersProgram planningLoyalty program
A system and method are disclosed for providing a complete architectural and procedural solution to wireless subscriber loyalty issues. A flexible promotion creation environment allows mobile phone operators to rapidly create and deploy various incentive programs and other such loyalty schemes; together with a data mining and profiling method for tracking, monitoring and analysing subscriber (or aggregate) usage information associated with given promotions. The proposed data mining and profiling method purposely incents specific subscriber behaviors by triggering a point-based reward scheme based on the dynamic screening of event records which are correlated with incented behaviors. Wherein a threshold is assigned based on usage information for a particular promotion; upon realization of which, the subscriber is, immediately notified of the reward through a plurality of means including e-mail, voice notification and by way of Short Message Service (SMS) at their wireless handset.
Owner:REDKNEE INC
Specific target candidate box generating method based on gauss model
InactiveCN105894020AHave a technical effectMeet actual needsCharacter and pattern recognitionPattern recognitionTemporal change
The invention provides a specific target candidate box generating method based on gauss models. The method includes the steps of establishing gauss models of each pixel point with a target scale varying with time as an independent variable, training the gauss models, dynamically screening out the position where the target appears frequently and the target scale information in a learning process to obtain a detection area, and uniformly setting a candidate box in the detection area through a sliding window searching means according to the target scale information obtained during the gauss model learning. The gauss models are trained by using the inherent characteristics of special scenes inlcuding stationary monitoring videos and vehicle-mounted monitoring videos to obtain the area where the target appears frequently and the scale information of a detected point. On-line learning mechanism is employed, so that updating and detection of the model are conducted synchronously. The target detection efficiency and detection effect are substantially improved, and assistance for a subsequent specific target identifying and tracking process is provided.
Owner:CHONGQING UNIV
Channel screening optimization method and system for communication terminal equipment
ActiveCN114142907AImprove mapping accuracyEfficient use ofRadio transmissionHigh level techniquesNoise (radio)Source encoding
The invention discloses a channel screening optimization method and system of communication terminal equipment, a plurality of satellites and a plurality of ground base stations are networked, when a new terminal accesses, channel screening is carried out on a new access terminal with resource competition occupation during data transmission, and the method comprises the following steps: acquiring wireless radio frequency channel signals of the plurality of ground base stations; performing virtual channel transmission matrix mapping on the virtual partitions of the ground base station based on respective data tasks of the original satellites to obtain an information source coding matrix and a channel coding matrix; on the basis, the condition that the modulus of the transmission capacity of the wireless radio frequency channel signal is smaller than the maximum receiving power of the virtual partition and the condition that the signal-to-noise ratio strength of the wireless radio frequency channel signal is minimum are taken as conditions; dynamic screening and channel preliminary screening of virtual partitions are realized; and according to the dynamic parameters, obtaining the priority of arrangement, and according to the priority, combining with other terminals to realize channel fine screening. The method is used for solving the problem of balance switching between a satellite and a ground station when resources are limited in the prior art and improving the effective utilization rate of satellite communication resources.
Owner:BEIJING GUODIAN GAOKE TECH CO LTD
Vision screening system
InactiveCN107157436AQuick screeningEasy to operateEye diagnosticsSpecial data processing applicationsHand heldThe Internet
The invention provides a vision screening system. The vision screening system comprises a clamp plate, a filtering window, a hand-held terminal and an upper computer, wherein the clamp plate is vertical to the orthogonal direction of the linear polarization direction of the filtering window, the filtering window is fixed to the front of the hand-held terminal through a fastening rope, the hand-held terminal and the upper computer are in communication through the wireless network, and thus the rapid screening for the vision is realized. The vision screening system has the advantages that the operation is simple, the response is sensitive, the evaluation result is strong in reminding property, the cost is low, etc. For the vision screening system provided by the invention, the circular polarization 3D vision technology, the vision light screening technology and the internet intelligent interaction technology are combined, thus the on-line dynamic screening and correcting for vision are realized, the comprehensive state of the vision and corrected vision of a tested person can be rapidly evaluated, a convenient and simple measures is provided for vision protection and health care of the tested person, and the evaluation result can be used as a reference tool for daily nursing and self health care.
Owner:北京云瞳视光科技有限公司
Image prediction method and device based on region dynamic screening and electronic device
ActiveCN109063603AImprove efficiencyHigh speedTelevision system detailsCharacter and pattern recognitionImage predictionVideo prediction
The present application relates to an image prediction method and apparatus based on region dynamic screening and an electronic device. According to an embodiment, an image prediction method may include dividing a current frame image into a plurality of sub-regions according to a predetermined standard; Determining an extended region corresponding to each sub-region, the extended region includingthe sub-region and being larger than the sub-region; Performing image recognition to determine an object of interest in the current frame image; Determining the sub-region in the extended region as asub-region of interest based on the extended region including at least a portion of the object of interest; Predicting the sub-region of interest using image information within the extended region toobtain a predicted sub-region of interest; And replacing a corresponding sub-region of interest in the current frame image with the predicted sub-region of interest to obtain a predicted frame image.By using the prediction method, the efficiency and speed of video prediction can be improved, and the prediction accuracy is not limited by the video size.
Owner:SHENZHEN HORIZON ROBOTICS TECH CO LTD
Methods And Systems Of Dynamic Screening Of Disease
InactiveUS20090088981A1Mathematical modelsData processing applicationsSubject matterDynamic screening
Owner:SOAR BIODYNAMICS
Method and device for drawing large-scale scene at fixed frame rate based on features of model components
ActiveCN107025684AReach load designImplement loading designDesign optimisation/simulationSpecial data processing applicationsNODALAlgorithm
The invention provides a method and a device for drawing a large-scale scene at fixed frame rate based on the features of model components. The method comprises the following steps: acquiring parameter information of model components, and creating component nodes and shared component nodes according to the parameter information; acquiring the features of the model components, and creating multi-level detail rendering nodes according to the features and the parameter information; recursively building a spatial octree scene tree according to the component nodes and the shared component nodes; carrying out dynamic screening according to the distribution information of the model components and the spatial octree scene tree to get a visible component set; and carrying out multi-level detail dynamic drawing of the model components according to the visible component set, the multi-level detail rendering nodes and preset drawing conditions. A large-scale process plant model can be loaded and designed through a process plant design platform, and the frame rate can be displayed and controlled. Moreover, the design scale and the interaction frame rate can both be improved significantly.
Owner:北京中科辅龙智能技术有限公司
Particle filter steering engine state prediction method based on improved weight generation mode
PendingCN108803323AReduce mistakesSolve the problems faced in life predictionAdaptive controlState predictionValue set
The invention relates to a particle filter steering engine state prediction method based on an improved weight generation mode. The particle filter steering engine state prediction method based on animproved weight generation mode includes the following steps: 1) F distribution particle filter prediction framework; 2) F kernel construction; and 3) dynamic screening process. The particle filter steering engine state prediction method based on an improved weight generation mode has the advantages that 1) even if the newest current measurement value set does not conform to the normal system development trend and the obtained current particle set at the same time is not in the correct area, the predicted system state can be used for alleviating uncertainty caused by measurement of noise amount through correction of the weight; and 2) compared with a traditional particle filter method, the particle filter steering engine state prediction method based on an improved weight generation mode can obtain better fault prediction accuracy.
Owner:CIVIL AVIATION UNIV OF CHINA
Thermodynamic diagram generation method and device, storage medium and equipment
InactiveCN111881930AImprove visibilityImprove experienceCharacter and pattern recognitionGeographical information databasesData miningDynamic screening
The invention relates to the technical field of thermodynamic diagrams, and discloses a thermodynamic diagram generation method and device, a storage medium and equipment, and the method comprises thesteps: receiving a thermodynamic diagram generation request initiated by a client, wherein the thermodynamic diagram generation request comprises a time constraint parameter and a space constraint parameter; analyzing the thermodynamic diagram generation request to obtain an analysis result, wherein the analysis result comprises a time parameter corresponding to the time constraint parameter anda space parameter corresponding to the space constraint parameter; performing data processing on the spatial point data of the server according to the analysis result to obtain thermodynamic diagram data; and sending the thermodynamic diagram data to the client, so that the client generates a thermodynamic diagram according to the thermodynamic diagram data. According to the thermodynamic diagramgeneration method and device, the storage medium and the equipment provided by the invention, the spatio-temporal data can be dynamically screened according to the given spatio-temporal constraint parameters, and the thermodynamic diagram is generated in real time.
Owner:GUANGZHOU URBAN PLANNING & DESIGN SURVEY RES INST
Method and system for on-line dynamical screening of electric power system
InactiveCN1647338AImprove reliabilityCalculation speedPower network operation systems integrationContigency dealing ac circuit arrangementsTime domainIslanding
Owner:TOKYO ELECTRIC POWER CO HLDG INC +1
Screening testing system of laser seeker MEMS gyro and method thereof
ActiveCN109781145AZero drift error is smallHigh precisionMeasurement devicesEngineeringDynamic screening
The invention discloses a screening testing system of a laser seeker MEMS gyro. The testing system comprises a testing data acquisition unit, a dynamic screening testing unit and a temperature compensating screening testing unit. The system can perform individual performance screening on the purchased MEMS gyros, thereby preventing discarding processing in a unqualified condition caused by performance screening testing after gyro loading. According to a method of the invention, screening testing can be performed on individual gyros. Through three designed screening testing systems, the MEMS gyro with low zero-bit drift error, stable dynamic performance in different rotating speed environments and stable angular speed output value in different temperature environments can be effectively screened. Through a calibration compensating mode, the precision of the effective MEMS gyros which are screened in different environments can be further improved, thereby improving index precision of a product.
Owner:HUBEI SANJIANG AEROSPACE WANFENG TECH DEV
High-frequency space adaptive threshold fire remote sensing monitoring method based on GK-2A
PendingCN114663776AImprove accuracyOperational improvement of remote sensing fire monitoringSensing radiation from gases/flamesScene recognitionAtmospheric correctionMeteorological satellite
The invention aims to mainly solve the problems that a fire remote sensing monitoring high-temporal-spatial-resolution data source is single, the accuracy of an existing monitoring method needs to be improved and the like, and provides a high-frequency spatial self-adaptive threshold high-precision fire remote sensing recognition monitoring method based on brand-new geostationary meteorological satellite GK-2A data. The fire monitoring channel is expanded, and the fire monitoring accuracy is improved. The method mainly comprises the steps of data preprocessing (GK-2A satellite data projection conversion, radiation correction, atmospheric correction and the like); marking clear sky pixels (identifying pixels in a cloud region, a water body region, a desert region and the like to mark the clear sky pixels); effective background pixel screening (dynamic screening based on underlying surface type differentiation); background pixel brightness temperature calculation; fire point pixel dynamic threshold value identification (correction coefficient self-adaptive dynamic processing based on the solar altitude and the vegetation proportion, and standard deviation self-adaptive correction based on the cloud pixel proportion); and false fire point elimination. According to the method, the channel of remote sensing fire monitoring is greatly expanded, and the accuracy of remote sensing fire monitoring is improved.
Owner:XIAN XINGTUZHIHUA DIGITAL TECH CO LTD
Resume retrieval method and device
The invention provides a resume retrieval method and device. The method includes: receiving keywords inputted by a user; performing retrieving according to the keyword to obtain and display a first retrieval result; setting a category of secondary screening according to the category corresponding to the keyword; receiving the selection of the secondary filtering category by the user, and obtainingand displaying the second retrieval result according to the selection of the secondary filtering category by the user. A resume intelligent screening mode is adopted, which is one-box search + secondary dynamic screening, through the dynamic perception of the content input by the user, the related content of the secondary search is intelligently recommended, and the invention is used for the resume secondary screening mode of the user.
Owner:北京全聘致远科技有限公司
Interactive device for the selective control of electromagnetic radiation
InactiveCN106661917AShielding from incident radiationGood optical performanceMaterial nanotechnologyOptical filtersAngular degreesEngineering
Owner:POLITECNICO DI MILANO
Music screening method
PendingCN109522441AEasy to useSpecial data processing applicationsAudio data queryingHuman bodyMental state
The invention discloses a music screening method which comprises the following steps: S1) receiving a starting signal, and carrying out a static screening mode or a dynamic screening mode according tothe starting signal; S2) detecting a human body activity state and generating a corresponding physiological signal; The method comprises the steps of (S1) establishing a physiological signal of a user, (S3) establishing a user physical and mental state model according to the physiological signal, (S4) loading the user physical and mental state model to generate corresponding song characteristic parameters, and (S5) selecting one or more playing and selecting music files matched with the current song characteristic parameters from a music database according to the song characteristic parameters.
Owner:昆山快乐岛运动电子科技有限公司
Text clustering method based on comparative learning and integrated with dynamic adjustment mechanism
PendingCN114817543ASolve the problem of mutual negative examplesImprove the quality of negative examplesSemantic analysisSpecial data processing applicationsClustered dataData set
The invention discloses a text clustering method integrated with a dynamic adjustment mechanism based on comparative learning, and the method is characterized in that a group of enhanced texts is obtained based on a context enhancement method, the feature representation of the enhanced texts is obtained through a pre-training model, and the initial cluster center of a semantic cluster is obtained through a K-Means clustering method; the confidence coefficient of text clustering distribution is improved, and dynamic screening is carried out; and finally, obtaining a model total loss function, and continuously and dynamically adjusting through a dynamic adjustment function, so that the model training weight is smoothly transited to a clustering task from comparative learning. According to the invention, the problem of inconsistency between comparative learning and clustering targets is alleviated; smooth transition from comparative learning to clustering is realized; the negative examples are screened by allocating pseudo labels to the data with high confidence coefficient of the cluster allocation probability, so that the problem that the same cluster data are mutual negative examples is solved, and the quality of the negative examples is effectively improved; the data representation obtained by contrast learning is more friendly to clustering; the short text clustering method is superior to the existing short text clustering method in most data sets.
Owner:KUNMING UNIV OF SCI & TECH
Wireless subscriber loyalty system and method
InactiveUS20100228616A1Low efficacyAccounting/billing servicesSpecial service for subscribersShort Message ServiceProgram planning
A system and method are disclosed for providing a complete architectural and procedural solution to wireless subscriber loyalty issues. A flexible promotion creation environment allows mobile phone operators to rapidly create and deploy various incentive programs and other such loyalty schemes; together with a data mining and profiling method for tracking, monitoring and analysing subscriber (or aggregate) usage information associated with given promotions. The proposed data mining and profiling method purposely incents specific subscriber behaviors by triggering a point-based reward scheme based on the dynamic screening of event records which are correlated with incented behaviors. Wherein a threshold is assigned based on usage information for a particular promotion; upon realization of which, the subscriber is, immediately notified of the reward through a plurality of means including e-mail, voice notification and by way of Short Message Service (SMS) at their wireless handset.
Owner:REDKNEE INC
Chinese herbal medicine processing equipment and Chinese herbal medicine processing technology
PendingCN113102237AFull flowImprove screening efficiencySievingScreeningEngineeringMechanical engineering
The invention discloses Chinese herbal medicine processing equipment and a Chinese herbal medicine processing technology, and relates to the technical field of Chinese herbal medicine processing. The Chinese herbal medicine processing equipment comprises a base; the top surface of the base is fixedly connected with two groups of damping buffer pieces which are symmetrically arranged; the top ends of the two damping buffering pieces are fixedly connected with frame bodies; the top faces of the two frame bodies are fixedly connected with a feeding mechanism and a screening mechanism correspondingly; one surface of the feeding mechanism is fixedly communicated with the screening mechanism; the feeding mechanism comprises a hopper; a first transmission assembly is fixedly mounted on the inner wall of the hopper; and the peripheral side face of the first transmission assembly is connected with a distributing roller. Through the design of the screening mechanism, single-layer static screening of a traditional screening device is changed into multi-layer repeated dynamic screening, through multi-layer repeated dynamic screening, on one hand, the screening efficiency and screening accuracy of the device can be effectively improved, and on the other hand, through dynamic screening, Chinese herbal medicine particles can fully flow in the screening process, and then the wrong screening rate and the screening leakage rate of the device are reduced.
Owner:李贞运
Feed processing and screening device
InactiveCN113694997AImprove screening efficiencyEvenly brokenSievingScreeningStructural engineeringDynamic screening
The invention discloses a feed processing and screening device, and relates to the field of feed processing. The device comprises a base and a box body and further comprises a crushing assembly, a movable screening assembly and a driving mechanism, wherein the crushing assembly comprises a fixed grinding piece fixedly installed on the inner side wall of the box body and two crushing rollers installed in the box body; the crushing assembly is used for extruding and crushing the feed between the crushing rollers and the fixed grinding piece through rotation of the two crushing rollers; the movable screening assembly is movably installed on the side wall of the box body, and is used for dynamically screening the feed crushed by the crushing assembly; the driving mechanism is installed on the box body; the two crushing rollers are eccentrically installed on the driving mechanism; and the movable screening assembly is connected with the driving mechanism. When the feed processing and screening device provided by the invention works, the crushing assembly and the movable screening assembly can be driven to move together through the driving element at the same time, so that the feed can be effectively and uniformly crushed; and meanwhile, dynamic screening is conducted, so that the feed screening efficiency is improved.
Owner:SHANDONG VOCATIONAL ANIMAL SCI & VETERINARY COLLEGE
Purpose of ion pump inhibitor for inhibiting epithelial-mesenchymal transition and resisting tumor metastasis
InactiveCN108113987AInhibition of epithelial-mesenchymal transitionInhibit tumor metastasisOrganic active ingredientsAntineoplastic agentsTreatment targetsWilms' tumor
The invention provides a purpose of an ion pump inhibitor for inhibiting epithelial-mesenchymal transition and resisting tumor metastasis. The ion pump inhibitor has a general structure formula shownin the description; the effective concentration of the ion pump inhibitor is 20nm to 10mu m. An efficient dynamic screening method is used; various small molecule compounds are subjected to screeningwhether the small molecule compounds are EMT target spots or not; the obtained ion pump inhibitor can effectively inhibit epithelial-mesenchymal transition and tumor metastasis; a novel method is provided for treatment target spots for clinically treating tumor metastasis; huge social and economic interests can be brought.
Owner:LEADINGEN BIOTECH INC
Template machine dynamic screening method considering fan random fault
InactiveCN107508319AImprove evaluation accuracySingle network parallel feeding arrangementsWind energy generationEnergy technologyNew energy
The invention relates to an electric power system new energy technology field and particularly relates to a template machine dynamic screening method considering a fan random fault. The sample machine dynamic screening method considering draught fan random faults comprises steps of (1) collecting characteristic parameters of the draught fan, (2) classifying the draught fan, (3) making I equal to I, choosing a fan having a smallest Euler distance with Cj<^^> as a preset template in Ci and marking the preset template machine as bci, performing sorting on other fans according to distances between the fans and the template machine from the shortest distance to the longest distance, (5) solving a power deducing coefficient krc according to a formula as shown in description in Ci of a non-template machine using the preset template machine as reference, (7) calculating a relative deducing coefficient according to a formula as shown in description and calculating a formula as shown in description, (8) repeating steps (4)-(7) until obtaining a P<Ci>sigma corresponding to each cluster and (9) obtaining wind power at t moment of a whole wind field.
Owner:STATE GRID LIAONING ELECTRIC POWER RES INST +1
Method for quickly judging point cloud inclusion problem
ActiveCN112346409ASolving computationally intensive problems involving problemsSolve the shortcomings of low efficiency of inclusion judgmentProgramme controlComputer controlPoint cloudDynamic screening
The invention discloses a method for quickly judging a point cloud inclusion problem. The method comprises the following steps: (1) inputting line segment group information of a point set to be judgedand a contour; (2) determining the maximum value and the minimum value of each endpoint coordinate in the line segment group of the contour; (3) for an input point set, screening out points with coordinates between the maximum value and the minimum value to obtain a screened coordinate point set arranged in sequence; (4) screening contour line segments through points and then calculating whetherthe contour line segments intersect or not; judging whether the point is in the area or not according to the total intersection number; and (5) repeating the step (4), judging all coordinate points inthe screened coordinate point set one by one, finding out points in the contour, and outputting a point cloud inclusion result. According to the method, the points needing to be judged and the line segments needing to be calculated are subjected to multi-step dynamic screening by sorting the point mark serial numbers, the points and the line segments, rapid judgment of the point cloud inclusion problem is achieved, and the method is stable, reliable and high in robustness.
Owner:ZHEJIANG UNIV
Linear Measurement Method of Gas Concentration Based on Adaptive Differential Absorption Spectroscopy
ActiveCN113702305BEliminate nonlinear effect errorsImprove detection limitColor/spectral properties measurementsSpectroscopyGas concentration
The invention provides a linear measurement method of gas concentration based on adaptive differential absorption spectroscopy technology, which includes the acquisition and processing of the full spectrum data of the gas to be measured, the automatic selection of the measurement band and the calculation of the estimated coefficient by the adaptive sliding window, and the adaptive dynamic screening of the most the optimal estimation coefficient, inverting the optimal measurement concentration value of the gas to be measured, and calculating the relative measurement error; the invention completes the automatic division of the measurement band through an adaptive sliding window, and calculates the estimation coefficient under different measurement bands; The optimal estimation coefficient of the gas to be measured is obtained, the optimal measured concentration value of the gas to be measured is inverted, and the relative measurement error is calculated to verify the feasibility of the method; the invention eliminates the nonlinear effect in the gas measurement process based on the differential absorption spectroscopy technology, and solves the problem of It solves the difficult problem of calibration in gas measurement, improves the measurement accuracy, finally realizes the accurate measurement of unknown concentration gas, and at the same time expands the detection limit and realizes the dynamic measurement of gas.
Owner:YANSHAN UNIV
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com