Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

210 results about "Neural network analysis" patented technology

Method for evaluating shale gas reservoir and finding dessert area

The invention provides a method for carrying out shale gas reservoir evaluation and finding a dessert area for shale gas exploration and development comprehensively through comprehensive application of rock physics, log data and omnibearing or wide-azimuth three-dimensional seismic data. The method is characterized by analyzing the characteristics of the dessert area in a shale reservoir by applying comprehensive geophysical exploration technologies of laboratory rock geophysical measurement, log data comprehensive analysis, rock physical modeling, vertical seismic section data, omnibearing or wide-azimuth three-dimensional seismic data high precision surface layer comprehensive modeling static correction processing, prestack de-noising processing, amplitude relative fidelity processing, resolution enhancement processing which is carried out by utilizing well constraint and well seismic data to drive ground seismic data, fine excision, iteration velocity analysis, interval velocity field analysis, prestack depth migration processing, high resolution processing, azimuth classification processing, high-precision anisotropy processing, prestack and post-stack data inversion processing, and neural network analysis and the like, and thus gas bearing characteristic prospect of the shale gas reservoir is evaluated accurately and the dessert area for shale gas exploration and development is delineated.
Owner:BGP OF CHINA NAT GASOLINEEUM CORP

Automated evaluation systems & methods

This invention uses linguistic principles, which together can be called Collocational Cohesion (CC), to evaluate and sort documents automatically into one or more user-defined categories, with a specified level of precision and recall. Human readers are not required to review all of the documents in a collection, so this invention can save time and money for any manner of large-scale document processing, including legal discovery, Sarbanes-Oxley compliance, creation and review of archives, and maintenance and monitoring of electronic and other communications. Categories for evaluation are user-defined, not pre-set, so that users can adopt either traditional categories (such as different business activities) or custom, highly specific categories (such as perceived risks or sensitive matters or topics). While the CC process is not itself a general tool for text searches, the application of the CC process to large collections of documents will result in classifications that allow for more efficient indexing and retrieval of information. This invention works by means of linguistic principles. Everyday communication (letters, reports, emails-all kinds of communication in language) does follow the grammatical patterns of a language, but forms of communication also follow other patterns that analysts can specify but that are not obvious to their authors. The CC process uses that additional information for the purposes of its users. Any communication exchange that can be recognized as a particular kind of discourse may be used as a category for classification and assessment. Specific linguistic characteristics that belong to the kind of discourse under study can be asserted and compared with a body of general language, both by inspection and by mathematical tests of significance. These characteristics can then be used to form the roster of words and collocations that specifies the discourse type and defines the category. When such a roster is applied to collections of documents, any document with a sufficient number of connections to the roster will be deemed to be a member of the category Larger documents can be evaluated for clusters of connections, either to identify portions of the larger document for further review, or to subcategorize portions with different linguistic characteristics. The CC process may be extended to create a roster of rosters belonging to many categories, thereby increasing the specificity of evaluation by multilevel application of this invention. The CC process works better than other processes used for document management that rely on non-linguistic means to characterize documents. Simple keyword searches either retrieve too many documents (for general keywords), or not the right documents (because a few keywords cannot adequately define a category), no matter how complex the logic of the search. Application of statistical analysis without attention to linguistic principles cannot be as effective as this invention, because the words of a language are not randomly distributed. The assumptions of statistics, whether simple inferential tests or advanced neural network analysis, are thus not a good fit for language. This invention puts basic principles of language first, and only then applies the speed of computer searches and the power of inferential statistics to the problem of evaluation and categorization of textual documents.
Owner:TEXT TECH

Mountain geological disaster monitoring and prewarning system and method based on digital twin driving

A mountain geological disaster monitoring and prewarning system based on digital twin driving comprises data acquisition sensors arranged on a physical layer, a DT monitoring module, a DT prediction module and a DT prewarning module arranged on an information layer, and clients on a visualization layer. A monitoring and prewarning method comprises the following steps: Step 1, investigation is carried out on a geological environment, and a monitoring plan is obtained for focused monitoring on a current area; Step 2, real-time data is obtained according to the monitoring plan obtained in Step 1,and historical geological disaster data are all stored in a geological disaster digital twin database and analyzed in the DT prediction module; Step 3, BP neural network analysis is carried out in the DT prediction module based on the historical geological disaster data to obtain a geological disaster prediction model; and Step 4, the monitoring data obtained in Step 2 is stored in the geologicaldisaster twin database to obtain prediction results, and the prediction results are sent to the clients for visualization. The system and method provided by the invention has the characteristics thatthe personal safety of residents, tourists and the like can be protected, and economic losses can be reduced.
Owner:XIAN UNIV OF POSTS & TELECOMM

Non-contact atrial fibrillation intelligent detection system based on deep convolution residual network

The invention relates to a non-contact atrial fibrillation intelligent detection system based on a deep convolution residual network. Heart impact signals generated during cardiac ejection of the human body can be collected, and whether or not the heart has atrial fibrillation is analyzed by using the deep convolution residual network. The system includes two parts including a heart impact signalcollection part and a deep convolution residual neural network analysis part. The heart impact signal collection part includes a piezoelectric film sensor, a piezoelectric signal processing module, anAD conversion circuit and a processor. Collected data is uploaded to a server running a deep convolution residual network algorithm, and a judgment result is turned back. A deep convolution residualneural network model includes a one-dimensional convolution layer, a downsampling layer, a batch normalization layer, an activation layer and a fully connected layer. A residual structure contained inthe model is formed by adding original signals and deep features extracted after several convolutional sample normalization activation operations. The system can be used for uninterrupted monitoringof the human body at night and give a judgement prompt in time to facilitate timely treatment of disease conditions.
Owner:NORTHEASTERN UNIV

Method for judging and positioning bridge cable corrosion

The invention discloses a method for judging and positioning bridge cable corrosion. The method comprises the following steps of: arranging a sensor on a cable to be detected, acquiring an actual measured signal by using the sensor and reading the signal into a laptop by using a data acquisition card; establishing a fine numerical model for the cable corrosion judgment by adopting the finite element technology according to geometric dimension, material characteristics and excitation signal conditions of the cable, initializing the numerical model, analyzing and calculating to obtain a simulation response signal, and providing a standard comparison signal for the actual measured signal; using the actual measured signal as a judgment signal of the cable corrosion, and comparing the judgment signal and the standard comparison signal and analyzing the judgment signal by adopting a neural network analysis method, if the damage does not exceed a threshold value, judging that the cable is not corroded, otherwise alarming and positioning the corroded part; generating a recording report and recording a local database. The method for judging and positioning the bridge cable corrosion has the advantages of high resolution, high judging precision and no influence on normal use of the cable.
Owner:ZHEJIANG UNIV

IoT sensor network artificial intelligence warning, control and monitoring systems and methods

A first Internet of Things (IoT) sensor network remote sensor station and network comprising a sensor network parameter processing, warning and control system with electronic, specifically programmed, specialized sensor network communication computer machine including electronic artificial intelligence expert system processing with transceivers and/or electrical or optical connections for communicating with IoT sensors and other different followed or following IoT remote sensor stations. Monitor units collect information from and communicate with remote sensor stations and further analyze collected information with artificial intelligence expert systems processing comprising expert input with multiple propositional expert system instructions defining multiple ranges of sensor variables. Further artificial intelligence expert system decision making provides Multiple-Input/Multiple-Output (MIMO) expert system operation with dispatch of electronic and/or optical communication warnings and/or corrective action control signals addressing MIMO urgent and composite degrees of concerns. Further artificial intelligence expert system comprises one or more of expert system processing, speech recognition, natural language processing, image analysis, fuzzy logic and/or neural network analysis. In some embodiments, hierarchical expert or fuzzy systems, neural network and/or adaptive feedback control implementation are disclosed resulting in substantial simplification of computational requirements.
Owner:PEDERSEN ROBERT D

Complex industrial process data modeling method based on dynamic convolutional neural network

The invention discloses a complex industrial process data modeling method based on a dynamic convolutional neural network. The method comprises the following steps: process variables with strong correlation with industrial process objective variables are selected, and through sampling, a time sequence for each process variable is obtained; an equal depth box plot is used to carry out abnormal point detection and elimination on the time sequences, and a linear interpolation method is then used for filling; the time sequence for each process variable in a former process time delay range at the sampling moment of the objective variable is extracted, a two-dimensional matrix containing dynamic characteristics of the process is formed, and picture samples are formed; and the dynamic convolutional neural network is built to analyze the dynamic characteristics of the industrial process data, the time and space relation of each sensitive variable is recognized automatically, and a prediction model for the objective variable is built. A large amount of historical data accumulated in the actual production process field is used, a data model of predicting an unpredictable objective variable by using a predictable process variable is built accurately, and an important role is played in online production process evaluation, dynamic adjustment and even energy conservation and emission reduction.
Owner:CENT SOUTH UNIV

Judgment method of ultra-high voltage equipment local discharge detection data

The invention discloses a judgment method of ultra-high voltage equipment local discharge detection data. The judgment method comprises the following steps: sampling a continuous ultrasonic frequencysignal to reduce to the continuous sound wave frequency signal capable of being heard by the human ear; continuously intercepting a frame sound wave frequency signal with a set time length; extractinga Mayer frequency cepstrum coefficient of the frame sound wave frequency signal as a to-be-identified fault discharge feature; sending the extracted to-be-identified fault discharge feature into a CNN convolution neural network, enabling the to-be-identified fault discharge feature to enter a fault classifier of a CNN convolution neural network output classification layer through CNN convolutionneural network analysis, wherein the CNN convolution neural network identifies the to-be-identified fault discharge feature and outputs the to-be-identified fault discharge feature according to the fault classifier formed by learning the known fault discharge feature in advance. The mode learning and identification are performed on the fault type by directly using the convolution neural network CNN, the identification accuracy rate is improved, and the manual intervention is reduced or avoided.
Owner:STATE GRID CORP OF CHINA +1
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products