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

80results about How to "Fast reasoning" patented technology

Intelligent fault diagnosis system for ICNI system

The invention discloses an intelligent fault diagnosis system for an ICNI system, which can improve the maintenance efficiency, carry out intelligent and automatic diagnosis and is applicable to the ICNI system. According to the technical scheme of the invention, a knowledge base and a management module thereof carry out standardization research and mathematical modeling based on a fault tree, an SQL Server database software framework is adopted, a relational database is used for building a logic relation among a fault phenomenon, a fault mode, a detection method, a historical case and a fault tree internal event to form the knowledge base; and a diagnosis information acquisition module interacts with an automatic testing system via Ethernet to acquire diagnosis data from the ICNI system and a testing instrument, a reasoning machine module adopts CBR and RBR hybrid diagnostic reasoning, after comprehensive judgment is carried out on the fault phenomenon inputted by the user, the field knowledge stored by the knowledge base and the diagnosis data from the automatic testing system, a reasoning method is automatically selected to carry out reasoning diagnosis on the fault, a reasoning process and a reasoning result are outputted to an explanation machine module, and a diagnosis report is generated.
Owner:10TH RES INST OF CETC

Fault diagnostic expert system for marine electrical propulsion system and establishing method thereof

ActiveCN104331543AEasy access to knowledgeImprove practicalityBiological neural network modelsSpecial data processing applicationsNerve networkKnowledge acquisition bottleneck
The invention relates to a fault diagnostic expert system for a marine electrical propulsion system and an establishing method thereof and belongs to the technical field of artificial intelligence. According to the invention, an artificial neural network technology is introduced into the expert system design to establish the fault diagnostic expert system for the marine electrical propulsion system; the fault diagnostic expert system for the marine electrical propulsion system mainly comprises a man-machine interface module, a neural network module, a knowledge maintenance module, a data management module, a data acquisition module and a database. According to an operation principle and a typical fault mechanism of each equipment of the electrical propulsion system, the invention discloses a design method of a fault diagnosis knowledge base for the electrical propulsion system. The fault diagnostic expert system for the marine electrical propulsion system and the establishing method thereof have the advantage that the expert system structured by applying an artificial neural network solves the problems of knowledge acquisition bottleneck, knowledge maintenance difficulty, low reasoning speed and the like of a conventional expert system, and the practicality of the fault diagnostic expert system is improved.
Owner:中国船舶重工集团公司第七一二研究所

Detection method for rapid change in multi-source navigation electronic map vector road network

The invention discloses a detection method for rapid change in a multi-source navigation electronic map vector road network. The detection method comprises the following steps: I. reading two groups of road networks to be matched, wherein one group is marked as a reference road network and the other group is marked as a target road network, acquiring topological relation between road network node and arc, and constructing a spatial index of node elements; II. for each road node in the reference road network, searching candidate matching node from the target road network, determining matching relation of the road node, and determining corresponding relation of road arcs by calculating an included angle cosine matrix; III. depending on the obtained node matching relation and arc corresponding relation, finally obtaining possible m-to-n matching relation between the road arcs, wherein if the matching relation can exist, both m and n are not changed; and IV. on the basis of result of the determined road arc matching relation, further deducing and judging possible matching relation. Through the detection method disclosed by the invention, a matching result with relatively high accuracy rate is obtained, and efficiency is comparatively high as well.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER

Transformer substation equipment sound fault detection and positioning method based on deep learning

The invention discloses a transformer substation equipment sound fault detection and positioning method based on deep learning, and the method comprises the steps: obtaining the sound data of transformer substation equipment, carrying out the data labeling of the sound data of the transformer substation equipment, and generating a sample data set; carrying out data enhancement on the sample data set by adopting an audio noise adding mode, and carrying out data preprocessing on substation equipment sound data in the enhanced sample data set to generate a multi-channel spectrogram sequence; forthe multi-channel spectrogram sequence, constructing a substation equipment sound fault detection model based on convolutional neural network coding and long-term and short-term memory network detection; and training the substation equipment sound fault detection model according to the sample data set to obtain a trained substation equipment sound fault detection model, and performing fault detection and positioning on the substation equipment sound. According to the technical scheme, the problems of low detection efficiency, poor algorithm robustness and the like in an existing substation equipment sound fault detection technology are solved.
Owner:DATONG POWER SUPPLY COMPANY OF STATE GRID SHANXI ELECTRIC POWER

Semantic segmentation-based unstructured field road scene recognition method and device

The invention discloses an unstructured field road scene recognition method and device based on semantic segmentation, and the method comprises the steps: obtaining an unstructured field road scene image construction data set, and carrying out the semantic annotation of the image data set; performing data amplification and division on the labeled data set; the method comprises the following steps: constructing a semantic segmentation model, fusing mixed expansion convolution into a MobilenetV2 feature extraction network, introducing a channel attention module to recalibrate feature channels in each stage of the feature extraction network, and designing a spatial pyramid pooling module to calculate multi-scale hierarchical features and splice the multi-scale hierarchical features with input features; initializing parameters of the feature extraction network for pre-training, adding the trained feature extraction network into a spatial pyramid pooling module and a pixel prediction network, deploying the feature extraction network on a training set and training the feature extraction network by adopting a stochastic gradient descent method; and after training is completed, inputting a to-be-recognized image into the semantic segmentation model to obtain a segmentation result. The method has a good segmentation effect and can realize balance between precision and speed.
Owner:TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE

Global rank perception neural network model compression method based on filter feature map

The invention discloses a global rank perception neural network model compression method based on a filter feature map, and solves the problems of high labor cost, low pruning efficiency and poor stability of a filter pruning model compression method. The method comprises the steps of obtaining and preprocessing image data; constructing a universal convolutional neural network, and setting hyper-parameters; selecting a loss function and an optimization algorithm; training and storing the pre-training model; acquiring an average rank of the feature map; adaptively learning a parameter matrix; representing and sequencing the importance of the filters; pruning and storing the pre-training model; and finely adjusting the network model to realize the global rank perception neural network model compression based on the filter feature map. According to the method, one-time learning and multi-time pruning are adopted, the filters are globally sequenced, pruning is unified, and ill-conditioned selection does not exist. The pruning effect and stability are better, the pruning efficiency of large-scale different-complexity networks is high, and the adaptability of different edge devices is good. The method is used for computing and storing resource-limited edge equipment.
Owner:XIDIAN UNIV

RPA element pickup same-screen switching method and system

The invention belongs to the technical field of RPA element recognition, and particularly relates to an RPA element pickup same-screen switching method and system. The method comprises the following steps: S1, selecting an element pickup mode; s2, moving the mouse to a specific software interface; s3, obtaining interface related information and interface screenshots, and transmitting and analyzing the interface related information and the interface screenshots; s4, forwarding the interface screenshot, and judging whether the specified time T is exceeded or not; s5, performing analysis processing on the interface screenshot algorithm to obtain an algorithm analysis result; s6, packaging an algorithm analysis result, and displaying the algorithm analysis result on a software interface; s7, judging an operation mode of the user; and S8, after the user selects the corresponding element, the picked element is highlighted again, and picking is completed after the user confirms that the element is correct. The method combines a service fragmentation mechanism, operation mode distinguishing and a front-end and rear-end processing strategy of floating window display, and has the advantages of being more excellent in pickup effect and wider in application range.
Owner:杭州实在智能科技有限公司

A distributed retrieval resource library selection method based on a variational auto-encoder

The invention discloses a distributed retrieval resource library selection method based on a variational auto-encoder, and the method comprises the steps: building an encoder and decoder network structure by utilizing a deep neural network, learning implicit representation of a resource library text, and capturing deep semantic representation of the resource library text; reasoning the extended text of the query word through a model obtained by an unsupervised training method to obtain a hidden representation of the query word; obtaining the correlation ranking of the resource library by calculating the similarity between the query words and the implicit representation of the resource library. The model is unsupervised training, a resource library and a hidden representation vector of a text are automatically obtained, and the defect of text feature design in a supervised training method can be overcome. In addition, the network structure of the variational auto-encoder is simple, andthe calculation time consumption of variational reasoning is lower than that of an LDA topic model based on a Markov chain Monte Carlo reasoning method. And after model training is completed, the timeconsumption for resource library selection is low, and the resource library selection efficiency is high.
Owner:SOUTH CHINA UNIV OF TECH

Cerebral function imaging diagnostic method based on knowledge base

The invention discloses a cerebral function imaging diagnostic method based on a knowledge base. The cerebral function imaging diagnostic method based on the knowledge base comprises the following steps that the cerebral function imaging diagnostic problem is represented through knowledge, wherein tree-based representation and building of a cerebral function imaging diagnostic problem knowledge-based information model are included; a knowledge model is designed, the knowledge base is built, data of the knowledge base are managed, a data base is combined with the knowledge base, and imaging characteristics are extracted. According to the cerebral function imaging characteristics, knowledge representation theories of knowledge engineering are introduced, the problem is described according to the tree-based representation method based on knowledge, rules in auxiliary diagnosis are represented on this basis, and therefore the knowledge base of the problem is formed. By the use of the technology combining the knowledge base, the data base and medical image processing, a semi-automatic cerebral function imaging auxiliary diagnosis process according to the method of the knowledge engineering is designed, and the cerebral function imaging diagnostic method with some information having reference value can be provided for doctors.
Owner:DALIAN LINGDONG TECH DEV

Low-illumination image brightness enhancement and super-resolution method based on double-channel codec

The invention relates to a low-illumination image brightness enhancement and super-resolution method based on a double-channel codec, and belongs to the technical field of computer vision images. The method comprises the steps of 1, performing feature extraction on a dark light image through an encoder sharing parameters to obtain a set of feature maps; 2, sending the feature map to a super-resolution decoder for decoding to obtain a super-resolution feature map; 3, pooling the feature map output by the encoder in the step 1 and the super-resolution feature map in the step 2 respectively to obtain two feature vectors, performing weighted fusion on the feature vectors by using an attention mechanism, and then sending the feature vectors to a low-illumination decoder for decoding; and finally, carrying out post-processing on the outputs of the two decoders to obtain a corresponding image after super-resolution. The invention is reasonable in design, low-illumination enhancement and image super-resolution tasks are combined for the defects of an existing low-illumination enhancement method, the visual effect of the reconstructed image is improved, and a good effect is achieved on the low-illumination enhancement and super-resolution comprehensive tasks on the whole.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Intelligent lamp pole crowd behavior recognition method and device based on human body joint point coordinates

PendingCN111723667AFully consider the characteristicsHighlight imageBiometric pattern recognitionNeural architecturesHuman bodyData set
The invention relates to an intelligent lamp pole crowd behavior recognition method based on human body joint point coordinates. The method specifically comprises the following steps: S1, constructingan image training set for human body behavior recognition and a human body joint point coordinate data set corresponding to human body behaviors; S2, acquiring crowd behavior information and extracting human skeleton behaviors by a camera of the intelligent lamp post, and interpolating the human skeleton behaviors without articulation points in the crowd behavior information according to the human articulation point coordinate data set; S3, setting a time attention layer for human skeleton behaviors, extracting features of the human skeleton behaviors, then constructing a deep learning network, and setting corresponding hyper-parameters; and S4, training the deep learning network through the deep learning open source framework to obtain a crowd behavior recognition model, and recognizingnewly obtained crowd behavior information through the crowd behavior recognition model. Compared with the prior art, the method has the advantages of improving the human body behavior recognition rate, reducing the influence of shielding objects on the recognition result and the like.
Owner:TONGJI UNIV

Street view flow information acquisition method based on computer vision

The invention discloses a street view flow information acquisition method based on computer vision. The method comprises the following steps: detecting and identifying objects in a street view for each frame of video by adopting a target detection algorithm YOLOv5; extracting appearance features of the detected object to assist matching of the detection frame and the prediction frame; predicting the position of each detected target appearing in the next frame by using a Kalman filtering algorithm; using a Hungary algorithm to calculate a cost matrix by using the extracted appearance features and motion features, and realizing cascade matching of detection frames to allocate a tracking target sequence number for an identified object; maintaining appearance features and tracking serial numbers of the detected object by using data structures such as a prototype library, and judging whether the detected object appears in the video for the first time or not according to the appearance features and the tracking serial numbers; and intercepting a small image of the object detected for the first time, transferring the small image to a specified path, counting the number of different objects appearing in each category, and displaying the motion trail of the object in the video. According to the invention, image information of common objects and counting statistical information of different types of objects in the street scene are collected in real time.
Owner:HOHAI UNIV

Hyperspectral image classification method and system based on lightweight neural architecture search

The invention discloses a hyperspectral image classification method and system based on lightweight neural architecture search. A hypernetwork is built through modular lightweight candidate operations, the serialization of the discrete candidate operations is carried out on the edge through a weighted mixing operation,double-layer optimization of the hypernetwork is carried out in a gradient optimization mode, and meanwhile, the model search speed is increased through subnet weight sharing. Then, in the optimization process, a greedy decision is utilized to select an undispersed edge, an operation with the maximum framework parameter on the edge is reserved, other operations in the edge are deleted, the remaining network forms a new super-network, the new super-network is iteratively optimized in the mode, the super-network is continuously simplified along with continuous dispersion of the edge and deletion of the operations on the edge, and finally a lightweight deep neural network architecture for hyperspectral image classification is obtained. The lightweight module is fully utilized to construct the super network, the neural architecture search method based on sequential greedy is realized, and the network architecture with less parameter quantity and higher classification precision can be automatically generated.
Owner:XIDIAN UNIV

Rapid high-resolution image segmentation method based on block recommendation network

The invention discloses a rapid high-resolution image segmentation method based on a block recommendation network, and relates to image processing. The method comprises the following steps: 1) constructing a global branch and a local refined branch; 2) performing down-sampling on the original high-resolution image, and uniformly dividing the original high-resolution image into a plurality of imageblocks; 3) inputting the down-sampled image into a global branch to obtain a global segmentation feature map, and uniformly dividing the global segmentation feature map into a plurality of feature blocks; 4) inputting the down-sampled image into a block recommendation network to obtain a recommendation block; 5) taking out the recommendation block according to the recommendation block label, performing significance operation on the recommendation block and the feature block corresponding to the global segmentation feature map, and inputting a result into a local refined branch; 6) fusing corresponding positions of the local refined feature blocks and the global segmentation feature map, and outputting a fused segmentation result as an overall segmentation result; 7) calculating error lossbetween the segmentation result and a real label, training a network and updating network parameters, and 8) taking any test image, and repeating the steps 1)-6) to obtain a segmentation prediction result The method is accurate in segmentation, low in calculation resource consumption and short in reasoning time.
Owner:XIAMEN UNIV

A fast detection method for multi-source navigation electronic map vector road network changes

The invention discloses a detection method for rapid change in a multi-source navigation electronic map vector road network. The detection method comprises the following steps: I. reading two groups of road networks to be matched, wherein one group is marked as a reference road network and the other group is marked as a target road network, acquiring topological relation between road network node and arc, and constructing a spatial index of node elements; II. for each road node in the reference road network, searching candidate matching node from the target road network, determining matching relation of the road node, and determining corresponding relation of road arcs by calculating an included angle cosine matrix; III. depending on the obtained node matching relation and arc corresponding relation, finally obtaining possible m-to-n matching relation between the road arcs, wherein if the matching relation can exist, both m and n are not changed; and IV. on the basis of result of the determined road arc matching relation, further deducing and judging possible matching relation. Through the detection method disclosed by the invention, a matching result with relatively high accuracy rate is obtained, and efficiency is comparatively high as well.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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