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154results about How to "Realize precise identification" patented technology

Robot charging method and device

The objective of the invention lies in providing a robot charging method and device. The method comprises the steps: enabling robot to move to a position nearby a potential or registered charging pile according to an environment map and the self-positioning information of the robot, i.e., the posture of the robot in the environment map; carrying out the linear extraction of structural data of an identification through a laser collection device after the robot moves to a short-range pile-searching butt joint region, recognizing the charging pile through combining with the preset identification template structural data, and carrying out the butt joint of the charging pile with the robot for charging when the collected structural data of the identification and the identification template structural data meet a preset matching degree; carrying out the physical connection confirmation according to the voltage condition after the connection of the robot and the charging pile, and guaranteeing the charging correct behavior. The method can achieve the precise recognition of the charging pile, is high in efficiency, is reliable, and effectively irons out defects of a series of pile butt joint jittering, interference and wrong recognition caused by the sensitive characteristics of hardware and the environment interference in the prior art.
Owner:SHANGHAI SLAMTEC +1

Power system weak link identification method based on risk evaluation

The invention relates to a power system weak link identification method based on risk evaluation and belongs to the field of power system analysis. The method includes acquiring fault probability of elements of a power system, a future load curve of the power system, states of the elements and load of nodes of the power system; utilizing a minimum load shedding loss optimization model to judge the failure state of the power system and determining the optimum load shedding quantity of each node under each element sampling state; finishing calculation of risk indicators of the power system through repeated sampling and power system failure state judgment; conducting statistics on the weak link characteristic quantity corresponding to faults of generators and an electric transmission and transformation device, calculating five element weakness recognition indicators of the elements according to the risk indicators and the weak link characteristic quantity and finally sorting the recognition indicator values to recognize the weak link of a generator set and the electric transmission and transformation device. By means of the method, the weak link of the power system is improved, large-area power failure of the power system is prevented, and operation safety of the power system is improved.
Owner:TSINGHUA UNIV

Part defect detection method and device and electronic equipment

PendingCN111768381ARealize precise identificationReduce the probability of misjudgment of defectsImage enhancementImage analysisPattern recognitionAlgorithm
The invention discloses a part defect prediction method and device and electronic equipment, and relates to the fields of artificial intelligence, deep learning, cloud computing and computer vision, in particular to the aspect of industrial quality inspection. According to the specific implementation scheme, the method includes: obtaining plane images of multiple planes of the part; cutting the plane image according to a reference size to obtain a plurality of sub-images; inputting the plurality of sub-graphs into a pre-trained defect prediction model to obtain a defect prediction result of each sub-graph; and inputting the defect prediction result into a pre-trained defect identification model to obtain a defect identification result of each sub-graph, the defect identification result comprising a defect type and a defect grade. Through the above scheme, on one hand, accurate identification of real defects of the part can be realized, so that the accuracy of a defect detection resultis improved, and the probability of misjudgment on whether the part has defects or not is reduced; and on the other hand, the input data of the defect prediction model is convenient to process, and the labor cost can be reduced.
Owner:BEIJING BAIDU NETCOM SCI & TECH CO LTD

Digital picture book rapid identification method and system, computer readable storage medium

The invention discloses a digital picture book rapid identification method and a system, a computer readable storage medium; the method comprises the following steps: pre-extracting cover feature points of digital picture books stored in a digital picture book stock, and carrying out quantification clustering; extracting cover feature points of a to-be-identified digital picture book, and carryingout quantification clustering; using a cluster-based cover feature point coupling algorithm to identify the digital picture book in the digital picture book stock; if the highest first coupling rateis between the first and second thresholds, selecting a plurality of digital picture books from the digital picture book stock so as to form a candidate digital picture book set; using a non-linear transformation-based cover feature point coupling algorithm to identify digital picture book in the candidate digital picture book set. The method combines the cluster-based cover feature point couplingalgorithm with the non-linear transformation-based cover feature point coupling algorithm so as to identify the digital picture book in the digital picture book stock, thus fast and accurately searching digital picture books.
Owner:SHENZHEN KUAIYIDIAN ELECTRONICS TECH

Industrial process fault diagnosis method based on similarility local spline regression

The invention provides an industrial process fault diagnosis method based on similarity local spline regression, and relates to the technical field of fault monitoring and diagnosis. The method includes the steps of collecting industrial process data, performing partial labelling and standardization processing, obtaining forecast labels by using an LSR method, processing the forecast labels by using a similarity analysis method, performing label correction on fuzzy fault identification points, then constructing an online diagnosis model based on a spline function, obtaining a coefficient matrix by using a ridge regression method, collecting new data during the industrial production process, obtaining the corresponding labels through the online diagnosis model and the coefficient matrix, and performing fault diagnosis. The industrial process fault diagnosis method in the invention solves the problem in fault diagnosis of multi-source heterogeneous data including a large number of physical and chemical variables, images, audio, video and the like in an industrial production process, without the need for fault identification of all industrial production data, thereby saving a lot of time and manpower, and can greatly reduce false alarms and improve the accuracy and sensitivity of fault detection.
Owner:NORTHEASTERN UNIV

Point cloud and multi-view fused vehicle-mounted laser point cloud multi-target identification method

The invention relates to a point cloud and multi-view fused vehicle-mounted laser point cloud multi-target identification method, which comprises the steps of constructing a depth model PGVNet based on an independent point cloud object to perform surface feature category prediction by performing point cloud local feature extraction on the independent point cloud object by utilizing a point cloud feature extraction module; generating a multi-view image of the independent object, and extracting an optimal view feature by using a view feature extraction module through view grouping and group feature fusion; fusing the optimal view feature and the point cloud feature by using a point cloud view feature fusion module based on an attention mechanism to obtain a point cloud global feature fused with attention; and finally, using the classifier MLP is to predict the category of the independent ground object target on the vehicle-mounted laser point cloud surface. According to the method, on one hand, the problem of information redundancy between similar views is reduced, on the other hand, the optimal view features can be used for guiding the model to learn point cloud local features, themodel classification precision is improved, and a new research method is provided for vehicle-mounted laser point cloud roadside multi-target fine classification.
Owner:FUZHOU UNIV

Distributed intelligent video analysis system, method, apparatus, device and storage medium

The invention relates to the field of intelligent video analysis, in particular to a distributed intelligent video analysis system, method, apparatus, equipment and storage media, The system comprises: an intelligent video analysis platform and a plurality of local video processing devices, a local video proces device comprises a front-end and an IP video source, the IP video source is used for collecting or storing the IP network video stream which needs intelligent video analysis. The front-end computer is used for acquiring the IP network video stream which is output from the IP video source, identifying the IP network video stream, and sending the initial identifying information to the intelligent video analysis platform. The intelligent video analysis platform is used to receive the preliminary identification information, process the preliminary identification information based on the depth learning algorithm, obtain the identification result, and send the identification result back to the front-end computer. With the distributed deployment of low-cost front-end, the video is accurately identified, and at the same time, the cost is greatly saved, the performance of intelligentvideo analysis is fully utilized, and the performance resources of video processing are effectively saved.
Owner:上海鸢安智能科技有限公司

Device for accurately identifying semi-active laser target azimuth

The invention relates to a device for accurately identifying the semi-active laser target azimuth, which belongs to the technical field of laser. The device comprises an optical system and an array detection system, wherein the optical system comprises a concavo-convex lens, a biconvex lens, a first convex-concave lens and a second convex-concave lens; the four lenses are coaxial; the array detector is positioned on a focal plane of combined focal length of the four lenses; the center of a detection surface of the array detector is positioned on optical axes of the four lenses; optical energyis focused on the array detector through the optical system; the array detector is used for converting the received optical signal into an electrical signal; and the optical system is used for ensuring that light with different angles is incident to corresponding pixel positions according to difference of performance parameters of the array detector. According to the device disclosed by the invention, the aim that reflection lasers with different angles have signal response at corresponding positions of the array detector is achieved by using the design of the optical system and the selectionof the array detector, thereby the accurate identification of the target azimuth is achieved; and the device is applied to military affairs so as to improve accurate strike capability of a weapon system.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Three-dimensional composite imaging method of hyperspectral laser, system and unmanned self-propulsion device

The invention provides a three-dimensional composite imaging method of a hyperspectral laser, a system and an unmanned self-propulsion device. The method includes steps of scanning an underwater suspicious zone through hyperspectrum so as to determine a detecting target in a suspicious zone; scanning the detecting target through a laser, and acquiring a backward scattering signal; confirming the distance information with the detecting target through the backward scattering signal; preforming interference shielding treatment on intensity information, spectrum information, and polarization information of the backward scattering signal, and acquiring the position information of the detecting target after analyzing the distance information with the detecting target; according to the intensityinformation, spectrum information, and polarization information of the backward scattering signal after removing interference, generating a three-dimensional image of the detecting object. Through combination of active laser scanning and hyperspectral passive imaging, the polarization information and spectral information of the detecting target are extracted; through information fusion of the both, speciality inversion of the small underwater target is completed, thereby realizing the accurate identification and high-precision location of the detecting target under the water.
Owner:SHANGHAI SPACEFLIGHT INST OF TT&C & TELECOMM

Electrified equipment fault diagnosis method based on neural network model

The invention discloses an electrified equipment fault diagnosis method based on a neural network model. The electrified equipment fault diagnosis method comprises the following main steps: S1, acquiring an infrared image of a measured object; S2, performing image processing, and establishing an image model library; S3, associating object names of the detected objects, and extracting detection features; S4, setting a threshold upper limit, and formulating a diagnosis rule; S5, constructing a data set of the defect sample image, constructing a convolutional neural network model, and training the convolutional neural network model; and S6, acquiring an infrared image of the measured object online, and realizing online automatic diagnosis through the convolutional neural network model, thereby identifying and diagnosing faults of the electrified equipment. According to the method, the trained convolutional neural network model is applied to identification of the defect image of the electrified equipment, so that accurate identification of the fault of the electrified equipment is realized, the operation is simple and convenient, the data is standard and unified, the working difficultyof electric power inspection can be reduced, the inspection efficiency is improved, and the fault detection rate is increased.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER CO LTD JIAXING POWER SUPPLY CO
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