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31results about How to "Rich data base" patented technology

An indoor building three-dimensional modeling method and device based on point cloud data

The invention provides an indoor building three-dimensional modeling method based on point cloud data. The method comprises the steps of firstly, obtaining and preprocessing the three-dimensional point cloud data; then carrying out the point cloud plane clustering to extract plane patches, calculating the neighborhoods of the plane patches according to a point set contained in the plane patches and used for plane semantic classification, merging processing, plane boundary capturing and topological information generation, and finally outputting a closed three-dimensional patch model which is composed of three-dimensional plane polygons and contains semantic and topological information of the indoor building. According to the invention, the problems such as the measurement errors existing inpoint cloud data, the density distribution unevenness, the data is incomplete due to indoor object shielding and the lack of semantic information, are overcome, a working process for automatically and quickly establishing the three-dimensional surface patch model of the indoor building by utilizing the three-dimensional point cloud is provided, the three-dimensional point cloud data of differentsources can be processed, a new method is provided for automatic and quick modeling of the indoor building, and a rich data basis is established for the indoor three-dimensional model in the fields ofmeasurement, building decoration, property management and the like.
Owner:WUHAN UNIV

Abnormal data detection and modification method based on numerical value relevance model

The invention discloses an abnormal data detection and modification method based on a numerical value relevance model. The method includes the following steps that first, abnormal data judgment conditions are defined by a display module and stored into a source indicator database; second, a data access layer traverses service indicator data in the source indicator database, judges whether the service indicator data meet the abnormal data judgment conditions or not and displays the service indicator data meeting the abnormal data judgment conditions in the display module, and meanwhile the third step is executed; third, the service indicator data meeting the abnormal data judgment conditions are modified by a service logic module, and the modified data are stored into the source indicator database according to needs. The abnormal data detection and modification method based on the numerical value relevance model greatly improves accuracy of service data of a power grid and accuracy for calculating statistical data groups, makes the statistical analysis result more reliable and provides favorable data support for enterprises in the respects of investment evaluation, benefit analysis and the like.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)

Global financial risk knowledge graph construction method based on artificial intelligence technology

InactiveCN110717816ARich data baseComprehensive and in-depth value miningFinanceNeural architecturesRisk ControlEngineering
The invention relates to a method for constructing a global financial risk knowledge graph based on an artificial intelligence technology. The method specifically comprises the following steps: constructing a relational network among all existing credit subjects of a financial institution; extracting corresponding association risk and group fraud risk portrait features based on the updated relationship network; processing the structural data of the credit main body with the same user ID into risk image data of an individual dimension; processing the unstructured data of the credit main body with the same user ID into individual dimension risk portrait data; integrating the association and gang risk portrait features based on the relational network and the risk portrait data of the individual dimension to jointly form a global financial risk knowledge graph. According to the method, the financial risk knowledge graph construction method based on the social relation network, natural language processing and deep learning is used for improving the financial risk control capability and reducing the credit risk.
Owner:上海氪信信息技术有限公司

Knowledge data processing method and knowledge data processing device

The embodiment of the invention provides a knowledge data processing method and a knowledge data processing device. The knowledge data processing method comprises the following steps of: acquiring entity data comprising identifier, attributes and attribute values thereof of a first entity object; extracting information of a second entity object from a preset entity information base, wherein the information is respectively matched with the attribute values in the entity data; associating the second entity object with the first entity object, thereby updating knowledge graph related to the first entity object. The knowledge data processing method and the knowledge data processing device, provided by the embodiment of the invention, can automatically and quickly associate the entity object described in the entity data with the entity object in the entity information base so as to update and complete the knowledge graph related to the entity object.
Owner:BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD

Deep excavation risk evaluation method based on network reasoning

InactiveCN101838991AExact risk levelObjective risk levelExcavationsSpecial data processing applicationsAssessment methodsDeep excavation
The invention discloses a deep excavation risk evaluation method based on network reasoning, in particular to a deep excavation engineering risk evaluation method based on a risk tree network for probabilistic reasoning, which comprises the following steps: establishing a deep excavation engineering risk evaluation and computation model according to risk identification and analysis; taking preliminary statistic deep excavation engineering quality safety accident data as basis for probabilistic computation and loss assessment, and adopting the risk tree network to conduct the linear reasoning of risk event occurrence probability and the dynamic update of the probability; adopting expert investigation and historical experience to conduct the assessment of losses caused by risks; and combining the established risk evaluation model to evaluate deep excavation risks to obtain the overall risk level of the deep excavation engineering and the average risk level of each risk event. The invention has the advantages that the method can be used for conducting deep excavation engineering construction risk evaluation and dynamic risk evaluation, the risk evaluation is enabled to more accurate and objective, the dynamic risks in the whole construction process can be reflected, the relevant prevention, control and reduction of the construction risks are facilitated and the safety is guaranteed.
Owner:SHANGHAI JIANKE ENG CONSULTING

Cloud service platform kitchen work environment intelligent alarm method and system

ActiveCN106385457AAccurately represent the state of the environmentIndicates the state of the environmentData switching by path configurationState parameterWorking environment
The invention discloses a cloud service platform kitchen work environment intelligent alarm method. The method concretely comprises the steps that state parameters in the kitchen work environment are acquired by an induction module; the state parameters are uploaded to a cloud service platform by the communication module in an alarm system; the historical data of the acquired state parameters in the kitchen work environment are enabled to act as training sample data by the cloud service platform so as to establish a user kitchen work environment law model; the abnormal level is set according to the matching degree of the state parameters and the kitchen work environment law model, and an alarm instruction corresponding to the abnormal level is issued; and an alarm control module responds to the alarm instruction and performs emergency processing measures. The acquired state parameters are used, the unique use law of every family is intelligently analyzed through the cloud service platform, and different levels of emergency processing is performed on the gas stove use situations which do not meet the law so that the method and the system which actively discover hidden dangers and actively alarm before the accident can be provided.
Owner:誉兴世纪(北京)科技有限公司

Active power distribution network fault diagnosis method and system based on local abnormal factor detection

The invention belongs to the field of power distribution network fault diagnosis, and particularly relates to an active power distribution network fault diagnosis method and an active power distribution network fault diagnosis system based on local abnormal factor detection. The diagnosis method comprises the following steps: acquiring operating electrical parameters of the active power distribution network in real time and preprocessing the operating electrical parameters to obtain one-dimensional fault characteristic quantity column matrixes based on time sequences; fusing the plurality of one-dimensional fault characteristic quantity column matrixes of different fault types in space to form a multi-fault characteristic quantity monitoring matrix of the same time sequence, and fusing themulti-dimensional fault characteristic quantity monitoring matrixes based on the plurality of time sequences to form a high-dimensional fault characteristic quantity monitoring matrix; carrying out dimension reduction processing on the high-dimensional fault characteristic quantity monitoring matrix, and solving the first two characteristic roots of the matrix after dimension reduction and the corresponding orthogonal characteristic vectors; and performing density-based local abnormal factor detection on a column matrix formed by the two orthogonal characteristic vectors to obtain an abnormalphysical node, and carrying out network topology of the power distribution network to obtain a fault section corresponding to the abnormal physical node, and thus the diagnosis fault result is obtained.
Owner:DEZHOU POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER

Fault handling method for distribution network including distributed power source

The invention discloses a fault handling method for a distribution network including a distributed power source. The fault handling method is characterized by including the steps of firstly, performing fault location, namely monitoring all remote signal displacement information in the distribution network, selecting fault signals existing in the distribution network according to starting conditions, starting fault analysis if faults are acquired, and performing fault location according to a location analysis method of directional signals; secondly, performing fault isolation, namely performing fault isolation analysis according to the principle of least power loss of load, and providing an isolation strategy; and thirdly, performing fault recovery, integrating the distributed power source into a fault recovery decision under the premise of complying with related rules and standards, and increasing power reliability of the distribution network while fully utilizing the distributed power source. By the fault handling method for the distribution network including the distributed power source, accurate location and quick isolation are provided for faults of the distribution network including the distributed power source, and accordingly fault recovery of the distribution network and adjustment of operation manner after recovery are achieved.
Owner:JIANGSU ELECTRIC POWER COMPANY YANGZHOU POWER +3

Strain identification method based on dunaliella core genome sequence

ActiveCN112349350AAvoid and overcome disadvantages such as high costRigorous program settingMicrobiological testing/measurementMicroorganism based processesGenomic sequencingMolecular identification
The invention belongs to the technical field of plant molecular identification, and particularly relates to a strain identification method based on a dunaliella core gene sequence. The method mainly comprises the following steps: collecting, purifying and culturing a sample; extracting the DNA of the whole genome; constructing a DNA sequencing library; obtaining whole genome sequencing data of thealgae strain to be detected and the Dunaliella Quartolecta; screening and de novo assembly of sequencing fragments of the D. Quartolecta core genome are carried out, and genome segmentation, proteinfunction annotation and genome contig colinearity analysis are carried out on the assembled core genome sequence; constructing a phylogenetic tree by utilizing single nucleotide polymorphism, and whenan algae strain to be detected and Dunaliella Quartolecta are gathered into a cluster, the data support rate of branches is 0.99-1.00, the genetic similarity percentage is greater than or equal to 99%, and the algae strain to be detected is D.quartolecta.
Owner:SHANXI UNIV

Electronic file for machine-readable information cards, and implementation method and system thereof

The invention relates to an electronic file, and an implementation method and system thereof, in particular to an electronic file for machine-readable information cards, and an implementation method and system thereof. The method comprises the following steps: (1) establishing template information according to standard information in visual identification information of a machine-readable information card; (2) acquiring machine-readable information in the machine-readable information card, and analyzing characteristic information data from the machine-readable information; and (3) synthesizing the characteristic information data and the template information into a whole with consistent visual effect with the machine-readable information card real object to form an electronic file, and obtaining the electronic file data. In the invention, whether the machine-readable information card is real or false is judged and identified by using multiple modes, and the electronic file is synthesized, thereby ensuring reliability and accuracy, and illegal transaction caused by human factors can be effectively prevented, the operational normalization is enhanced and people with illegal certificates is prevented from handling related services due to human factors.
Owner:CHENGDU XUNYE TECH

D-PMU-including power distribution network multi-source data modeling method

The present invention relates to a D-PMU-including power distribution network multi-source data modeling method, belonging to the technical field of electric power engineering. The D-PMU is divided into a measurement value module, a terminal module connecting the equipment to a measurement end and equipment module existing in CIM, and a synchronous clock module, a punctuality module and a synchronous phasor measurement module missing in the CIM are added after sorting and classification. The modules are associated, and the association between the equipment module and the terminal module and the association between the terminal module and the measurement module are added. A power distribution network measurement data acquisition system D-PMU, SCADA, fault filtering, measurement data, marketing data, GIS data and photovoltaic model is built, including a "substation-10kV feeder-distribution transformer-low voltage line-customer" power distribution grid integration model. The method provides a more perfect data foundation for the advanced decision-making application of a smart grid and realizes full informationization of the power distribution network.
Owner:HUNAN UNIV +2

Method and device for connecting wireless access points

The invention aims to provide a method and device for connecting wireless access points. Compared with the prior art, a wireless access point list is acquired, and access information of the wireless access points in the wireless access point list is inquired in a local database; and further, a mapping relationship is established between the access information of a first wireless access point and the first wireless access point, wherein the first wireless access point is the wireless access point that the access information is inquired. The method can provide great convenience for a user to connect the first wireless access point, and connection can be realized without inputting the access information of the first wireless access point by the user, so that user experience is improved.
Owner:SHANGHAI ZHANGMEN TECH

Small program sub-service identification method and device, equipment and storage medium

The invention provides small program sub-service identification method and device, equipment and a storage medium. The original feature data of the applet is obtained, and the operation feature data generated in the applet use process is collected by using the computer network technology, so that the features of the applet are expanded, and the operation efficiency of the applet is improved. Content understanding is carried out on the use process of the applet by collecting external operation characteristic data, so that the characteristics can better represent the function of the applet. Meanwhile, the form of the features is not limited, rich data bases can be provided for multi-modal features such as texts, pictures and statistical data, the specific functions of the applet can be represented more accurately, the accuracy of applet sub-service recognition is improved, and application and popularization of the applet are further facilitated.
Owner:ALIPAY (HANGZHOU) INFORMATION TECH CO LTD

City updating effect evaluation method and system based on real estate big data

ActiveCN112199566AImprove the single means of data collectionImprove the weakness of high collection transactionsDatabase updatingWeb data indexingUrban formData visualization
The invention discloses a city updating effect evaluation method based on real estate big data, and the method comprises the steps: firstly respectively constructing an IP agent pool, a collection channel pool and a flow load balance according to corresponding construction principles; conducting cleaning, merging, updating and data collection on the same object data from different channels throughthe IP agent pool, the collection channel pool and the flow load balance; using house surveying and mapping information as core basic information, using a name method and an address method for processing the collected data, conducting data mining, and obtaining metadata used by a city updating performance evaluation model; and by the constructed city updating performance analysis and evaluation model taking real estate as a driving force, conducting statistical analysis by utilizing the obtained metadata to obtain an index system suitable for city updating performance evaluation and analysis,and displaying index data on a mobile terminal through data visualization. According to the method, the urban form and the gradual evolution and effect of governance are reflected spatio-temporally,and a decision basis can be provided for long-term sustainable development of cities.
Owner:成都房联云码科技有限公司

Log file automatic generation method based on model driving

The invention provides a log file automatic generation method based on model driving, and belongs to the field of combination of software system structure modeling and log file automatic generation. The method comprises: based on a software system structure modeling idea, coding functional components of all layers of an application program, and using an automatic mapping mode to replace log information containing internal definitions of an application system; and then intercepting user information corresponding to corresponding operation behaviors, generating log contents together with other necessary system description information, and storing the log contents in a log file or database file form. Meanwhile, collection work of the log information can be started or stopped at will by modifying the configuration file, and existing log information can be expanded or deleted according to real-time needs. Physical separation and logic independence of the log system and the application system are achieved, comprehensive, detailed and extensible log content is guaranteed, the application system can be maintained, and the follow-up data analysis work efficiency is improved.
Owner:BEIHANG UNIV

Pedestrian re-identification method and device based on knowledge distillation, equipment and storage medium

The invention provides a pedestrian re-identification method and device based on knowledge distillation, equipment and a storage medium, and the method comprises the steps: carrying out the pedestrian re-identification of to-be-identified image data based on a trained pedestrian re-identification model, and obtaining a pedestrian re-identification result; obtaining first output data based on a data training set and a preset teacher model set corresponding to the data training set; training a neural network based on the data training set to obtain a student model and second output data output by a student model; calculating a loss function of the student model based on the first output data, the second output data and a discriminator network; and adjusting model parameters of the student model to minimize the loss function, and obtaining the trained pedestrian re-identification model. According to the invention, the pedestrian re-identification model is trained based on a learning method of a cross-domain data set and knowledge distillation, so that the accuracy of pedestrian re-identification is improved.
Owner:XIAMEN MEIYA PICO INFORMATION

Skin type identification method and system based on multi-wavelength photoacoustic spectrum

PendingCN113854962AObjective type identificationExact type identificationDiagnostic recording/measuringSensorsTime domainDermatomal
The invention relates to a skin type identification method and system based on a multi-wavelength photoacoustic spectrum. The method comprises the steps of obtaining a photoacoustic time domain signal of skin, carrying out the power spectrum analysis and integration processing, obtaining photoacoustic quantization spectrum parameters under different wavelengths, training a support vector machine model based on the photoacoustic quantization spectrum parameters under different wavelengths, and inputting the photoacoustic quantization spectrum parameters of the to-be-identified skin, which represent the content of the characteristic molecules in the skin tissues, into the support vector machine model to obtain the skin type of the to-be-identified skin. Compared with the prior art, the method has the advantages that the recognition time can be saved through machine learning, and the skin tissue type can be recognized more objectively, quantitatively and accurately through the photoacoustic spectrum characteristic parameters under multiple wavelengths.
Owner:TONGJI UNIV

Prediction method of ore prospecting model based on machine learning

InactiveCN107038505BThe prediction method is comprehensive and objectiveRich data baseForecastingMachine learningEngineeringPrediction system
The invention belongs to the field of geological prospecting technology, specifically discloses a method of predicting a prospecting model based on machine learning. The method establishes a unified and easy-to-distinguish prospecting concept model database; analyzes and summarizes existing domestic and foreign prospecting models and ore-controlling elements and data materials of a study area based in the prospecting concept model database by machine learning, and constructs a prospecting prediction model; after determines the ore-controlling elements in the prospecting prediction model, improves data foundation of the prospecting concept model according to a data material list provided about the range of the study area, and recommends an algorithm combination suitable for the ore-controlling elements according to algorithms summarized from a cube quantitative predicting system; finally, based on the prospecting concept prediction model, realizes a quantitative, positioned and probabilistic predictive evaluation. The invention can quickly establish the prospecting model of a study area, and the prospecting model is more comprehensive and objective and more in line with the actual situation.
Owner:CHINA UNIV OF GEOSCIENCES (BEIJING)

Building column grid size obtaining method based on room area requirement

The invention relates to a building column grid size obtaining method based on room area requirements. The building column grid size obtaining method comprises the following steps: S1, building column grid size initial information is obtained; S2, calculating an achievable area number corresponding to each column grid size; and S3, searching and outputting the column grid size corresponding to the maximum achievable area number. Compared with the prior art, the uniform column grid size obtaining method provided by the invention has the advantages that the efficiency and the accuracy are improved, the error of a non-technical mode that a designer selects according to experience in the past is avoided, and the economic efficiency of room design and commissioning is effectively improved.
Owner:TONGJI UNIV ARCHITECTURAL DESIGN INST GRP CO LTD

A hydraulic bulge testing device

The invention discloses a hydraulic bulging testing device, which comprises: a base, a liquid filling tank is arranged on the top, a liquid filling port is provided on the bottom to communicate with the liquid filling tank through a channel; the liquid filling tank is provided with a platform for installing a test sample, The test sample cover is set on the notch of the liquid filling tank to form a liquid filling chamber; the flexible curved surface sensor is attached to the upper surface of the test sample to sense the shape of the curved surface of the test sample after swelling and deformation; the pressure ring is installed on the flexible around the curved surface sensor, and cooperate with the platform to fix the tested piece and the flexible curved surface sensor; the upper cover, the cover is arranged above the liquid filling tank, and is offset against the upper surface of the pressure ring, and the upper cover is provided with a through hole communicating with the pressure ring, and The upper cover is provided with a threading hole; the controller is connected with the flexible curved surface sensor and is used to receive the signal collected by the flexible curved surface sensor to form a sample deformation surface map. Performance measurement accuracy.
Owner:CHINA SPECIAL EQUIP INSPECTION & RES INST +1

Electronic file for machine-readable information cards, and implementation method and system thereof

The invention relates to an electronic file, and an implementation method and system thereof, in particular to an electronic file for machine-readable information cards, and an implementation method and system thereof. The method comprises the following steps: (1) establishing template information according to standard information in visual identification information of a machine-readable information card; (2) acquiring machine-readable information in the machine-readable information card, and analyzing characteristic information data from the machine-readable information; and (3) synthesizing the characteristic information data and the template information into a whole with consistent visual effect with the machine-readable information card real object to form an electronic file, and obtaining the electronic file data. In the invention, whether the machine-readable information card is real or false is judged and identified by using multiple modes, and the electronic file is synthesized, thereby ensuring reliability and accuracy, and illegal transaction caused by human factors can be effectively prevented, the operational normalization is enhanced and people with illegal certificates is prevented from handling related services due to human factors.
Owner:CHENGDU XUNYE TECH

A cloud service platform kitchen operating environment intelligent alarm method and system

ActiveCN106385457BAccurately represent the state of the environmentIndicates the state of the environmentData switching by path configurationGas cooking stoveGas stoves
The invention discloses a cloud service platform kitchen work environment intelligent alarm method. The method concretely comprises the steps that state parameters in the kitchen work environment are acquired by an induction module; the state parameters are uploaded to a cloud service platform by the communication module in an alarm system; the historical data of the acquired state parameters in the kitchen work environment are enabled to act as training sample data by the cloud service platform so as to establish a user kitchen work environment law model; the abnormal level is set according to the matching degree of the state parameters and the kitchen work environment law model, and an alarm instruction corresponding to the abnormal level is issued; and an alarm control module responds to the alarm instruction and performs emergency processing measures. The acquired state parameters are used, the unique use law of every family is intelligently analyzed through the cloud service platform, and different levels of emergency processing is performed on the gas stove use situations which do not meet the law so that the method and the system which actively discover hidden dangers and actively alarm before the accident can be provided.
Owner:誉兴世纪(北京)科技有限公司

Fault handling method for distribution network with distributed generation

The invention discloses a fault handling method for a distribution network including a distributed power source. The fault handling method is characterized by including the steps of firstly, performing fault location, namely monitoring all remote signal displacement information in the distribution network, selecting fault signals existing in the distribution network according to starting conditions, starting fault analysis if faults are acquired, and performing fault location according to a location analysis method of directional signals; secondly, performing fault isolation, namely performing fault isolation analysis according to the principle of least power loss of load, and providing an isolation strategy; and thirdly, performing fault recovery, integrating the distributed power source into a fault recovery decision under the premise of complying with related rules and standards, and increasing power reliability of the distribution network while fully utilizing the distributed power source. By the fault handling method for the distribution network including the distributed power source, accurate location and quick isolation are provided for faults of the distribution network including the distributed power source, and accordingly fault recovery of the distribution network and adjustment of operation manner after recovery are achieved.
Owner:JIANGSU ELECTRIC POWER COMPANY YANGZHOU POWER +3

Drop coalescence micro characteristic experiment analysis device in shear flow field

The invention provides a drop coalescence micro characteristic experiment analysis device in a shear flow field, which comprises a high-speed microscope camera system, a flat-plate pure shear module,a non-uniform shear module, a micro-channel liquid flow shear module and an injection pump, wherein the outlet of the injection pump is divided into three channels, and the three channels are connected with the flat-plate pure shear module, the non-uniform shear module and the micro-channel liquid flow shear module respectively; a circulating liquid supply system is used to provide the circulatingflow function of liquid for the non-uniform shear module and the micro-channel liquid flow shear module; and the high-speed microscope camera system is used to record and analyze the movement, deformation, fracture and coalescence characteristics of drops in the flat-plate pure shear module, the non-uniform shear module and the micro-channel liquid flow shear module. The micro evolution processessuch as movement, deformation, fracture and coalescence characteristics of dispersed drops can be accurately captured, processed and analyzed.
Owner:CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY

A multi-source data modeling method for distribution network with d-pmu

The invention relates to a multi-source data modeling method applicable to a distribution network containing a D-PMU, which belongs to the technical field of electric power engineering; the D-PMU is split into measurement value modules already existing in the CIM, and the equipment is connected to the measurement module The terminal modules and equipment modules at the end are sorted and classified, and the missing synchronous clock module, timekeeping module, and synchrophasor measurement module are added in the CIM. Correlate between modules, increase the relationship between equipment modules and terminal modules, terminal modules and measurement modules; establish distribution network measurement data acquisition systems D‑PMU, SCADA, fault filtering, metering Data, marketing data, GIS data, and photovoltaic models cover the integrated model of the distribution grid of "substation - 10kV feeder - distribution transformer - low voltage line - power customer". Provide a more complete data foundation for the advanced decision-making application of the smart grid, and realize the full informationization of the distribution network.
Owner:HUNAN UNIV +2
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