17 results about "Section analysis" patented technology

The invention relates to the technical field of section analysis of printed circuit boards, in particular to a section analysis method for PCB positioning cutting, a target abnormal area is positioned on a PCB through an optical microscope, the optical microscope not only can observe the morphology of the surface layer of a sample, but also can observe the morphology within a certain range below the surface layer, and the accuracy of section analysis is improved. And meanwhile, the optical microscope is very sensitive and accurate in color identification, so that compared with the prior art in which the target abnormal area is positioned on the PCB through a scanning electron microscope, the target abnormal area can be more effectively positioned on the PCB, and the purpose of reducing the positioning difficulty of the target abnormal area is achieved. Besides, the positioning layer and the protection layer are deposited in the target abnormal area, so that the cross section sample can be prevented from being physically and chemically damaged in the cutting process on the basis of improving the cutting precision of the cross section sample, and the failure analysis precision of the PCB is improved.

The invention discloses a white and black pavement structure exterior and interior disease one-key plotting method oriented to pavement health management, and relates to the technical field of road engineering detection and maintenance. Reflection crack tracing is realized based on an interlayer disease conduction rule by establishing a cement board joint coordinate system; the method comprises the following steps: determining the types of broken slabs and slab corner fractures by utilizing the spatial geometrical relationship between cracks and joints, calculating indexes such as a load transfer coefficient, a reflection crack rate, a slab breakage rate and a pavement condition index, and generating a visual result containing disease distribution and performance parameters in a linkage manner. According to the method, the traditional single structure layer analysis limitation is broken through, the reflection crack recognition accuracy rate exceeds 92%, the broken plate judgment accuracy rate reaches 94% or above, the batch data processing time complexity is optimized to O (n + m), the single road section analysis time is shortened to be within 5 minutes from 2 hours, the problems of low manual detection efficiency, large errors and the like are effectively solved, and quantitative support is provided for precise maintenance of white and black pavements.

An artificial intelligence-based joint quality prediction method includes collecting raw data including joint cross-section analysis data and joint equipment monitoring data and generating training data by preprocessing the raw data. The artificial intelligence-based joint quality prediction method also includes training, based on the training data, a joint quality prediction model configured to output joint quality of joint equipment based on real-time data collected in real time by the joint equipment. The artificial intelligence-based joint quality prediction method additionally includes validating the trained joint quality prediction model through a K-fold cross validation.

The invention relates to a novel antenna pattern three-dimensional interaction analysis control. The control comprises a data loading module, a model creating module, a rendering control module, a coordinate system conversion module, a section analysis module, a query labeling module and a data exporting module. The method is realized by adopting Qt 5.15. 2 and VTK 8.2 architectures, antenna test data are converted into a three-dimensional model through a VTK visual pipeline flow, and dynamic section analysis under a Cartesian coordinate system, a cylindrical coordinate system and a polar coordinate system is supported. A user can input coordinates or obtain any tangent plane contour through mouse interaction, AZ plane, EL plane and contour surface projection can be displayed in real time, and the functions of spatial point data query and main lobe labeling are achieved. Self-adaptive adjustment of the interface style is achieved through the QSS style file, the QSS style file is packaged into a DLL file, and an API interface is provided. According to the method, the problems of non-uniform interface style and lack of a three-dimensional model section interactive analysis function of existing commercial software are solved, and the antenna pattern analysis efficiency is improved.

The invention discloses a fixing device for tire section analysis, and relates to the technical field of tire section analysis, and the fixing device specifically comprises a base, a workbench is arranged at the top of the base, a fixing plate for placing a tire section is arranged in the middle of the workbench, and a fixing assembly is arranged on one side of the workbench; the fixing assembly comprises a lifting block movably connected with the workbench, the top of the lifting block is movably connected with a rotating sleeve, and the end, away from the lifting block, of the rotating sleeve is connected with a fixing block through a hollow pipe. Friction force between the inflatable air bag and the inner wall of the section of the tire is utilized to fix the section of the tire, so that the section of the tire is stressed uniformly, local stress is avoided, deformation of the section of the tire can be avoided, and accuracy of geometric data acquisition of the section of the tire is improved; therefore, multi-angle geometric data acquisition of the tire section can be realized, and the data acquisition efficiency is improved.

This invention provides a method and system for generating casting process models for automotive chassis components based on multimodal feature recognition. The entire process is automated, effectively addressing the industry pain points of traditional process modeling, such as excessive reliance on human experience, long design cycles, and poor consistency. This invention integrates multi-strategy feature recognition algorithms based on rules, cross-section analysis, and topology spread. It can accurately extract key process features such as spindle holes, machined holes, and complex curved surfaces, and establish a unified local coordinate system, significantly improving the accuracy of complex structural feature recognition. Through a standardized process rule library and standard parts library, it achieves automatic blank processing, automatic selection and assembly of standard parts, and automatic mold generation, compressing the traditional modeling cycle of several days to several hours. Furthermore, this invention performs specific optimizations after selecting chassis components, ensuring that the process scheme closely matches actual production, effectively guaranteeing the consistency and reliability of the process model, and significantly reducing casting process design costs and the risk of human error.

The application relates to the technical field of rock-soil section analysis, in particular to a slope section stability analysis system, which comprises a slope segmentation module, a multi-model analysis module, a working condition correction module and a stability coefficient calculation module. The slope segmentation module is configured with a section segmentation strategy, a virtual three-dimensional slope model is constructed by performing geological contour scanning on a slope, and a plurality of characteristic sections are generated by analyzing the virtual three-dimensional slope model. The multi-model analysis module is configured with an analysis model library, the analysis model library stores a plurality of slope space analysis models, and the structure surface of the characteristic sections is analyzed to determine corresponding rock mass structure models. The working condition correction module is configured with a slope working condition parameter library, and is used for establishing a parameter mapping relationship with the corresponding characteristic sections. The stability coefficient calculation module is configured with a safety coefficient analysis model, and the rock mass structure model and the slope working condition parameter library are used for calculation and analysis to determine the slope stability coefficients of the corresponding characteristic sections under different working conditions. The application has the effect that the accuracy and comprehensiveness of slope section stability analysis are improved.

The present invention discloses a method for removing scallop effects from swath observation data, comprising the following steps: collecting swath observation data with scallop effects in a target area; performing interpolation filling on missing values and discontinuous areas of the swath observation data; performing section-by-section analysis on the preprocessed swath observation data, extracting local maximum points and local minimum points on each section, and calculating the pixel spacing between adjacent local extreme values; counting the pixel spacing between adjacent local extreme values on all sections, and generating a histogram to present the number distribution of pixel periods; calculating a weighted average value based on the pixel periods counted in the histogram to determine the kernel size of a mean filter, wherein the kernel size covers complete periodic fluctuations; applying the designed mean filter to the swath observation data section by section, and repeating the process until all data are completely scalloped. The present invention provides an accurate denoising effect in a concise and efficient manner.

This application discloses a method for constructing a three-dimensional structural model based on cross-section analysis, belonging to the field of geological model construction technology. The method includes: acquiring borehole trajectory data and observation data for a target geological area, and determining virtual intersection points between each borehole trajectory; calculating the local gradient deviation and spectral vector of each borehole trajectory at the virtual intersection point based on the observation data; constructing a confidence weighting matrix based on the intersection angle and local gradient deviation between each borehole trajectory; determining the optimal observation value at the virtual intersection point with the smallest spectral vector error based on the confidence weighting matrix and the spectral vector deviation between each borehole trajectory; updating the observation data with the optimal observation value to generate a corrected observation sequence, and constructing a three-dimensional structural model based on the corrected observation sequence. This application achieves the technical effect of improving the reconstruction accuracy of the model structure under complex borehole layout conditions and enhancing the continuity of topological fractures or attribute fields in the model.

The application discloses a kind of composite briquette adding phase geometric structure and space distribution optimization method, adopt ellipsoid equation to simultaneously describe round ball type, whisker type, sheet type filling method, realize the optimization design of different geometric shapes;Specific steps are as follows:1, give the relevant condition of briquette;2, establish the r-θ2D section analysis model of briquette;3, given the discrete geometric number of adding phase;4, generate corresponding ellipse in model using random algorithm;5, determine whether the ellipse generated in 4 has problem, if there is problem, repeat 4;6, repeat steps 4, 5, generate M sets of data containing random geometry, space distribution;7, carry out mesh division;8, use numerical analysis method and solve in parallel, obtain M groups of key variables;9, based on the result in 8, using genetic algorithm and other optimization means, evaluate the pros and cons of M groups of design, then generate M groups of data again in combination with steps 4-6;10, repeat steps 4-9 until the optimization algorithm convergence condition is reached;11, output optimization result.

The invention belongs to the technical field of pathological sections, and particularly relates to a pathological section analysis device which comprises a workbench. A feeding unit, a scanning unit and a discharging unit are arranged above the workbench. The feeding unit comprises a containing groove formed in the workbench, and a containing plate is slidably connected into the containing groove. By arranging a first bevel gear, a second bevel gear and a reciprocating screw rod, when feeding is needed, a first motor is started, an output shaft of the first motor drives a rotating rod to rotate, the rotating rod drives the second bevel gear to rotate, the second bevel gear drives the first bevel gear to rotate, and the first bevel gear drives the reciprocating screw rod to rotate; the placing plate is driven by the reciprocating screw rod to move upwards, at the moment, the glass slide on the uppermost layer moves upwards to the top of the workbench, then the first electric push rod is started, the push plate is driven by the output end of the first electric push rod to move, the glass slides are integrally pushed to the scanning unit through the push plate, and the function of rapid feeding is achieved.

The invention relates to the technical field of underground pipe networks, and discloses a WisemapGisServer-based CIM (common information model) pipeline detection and analysis method, which comprises the following steps of: detecting a horizontal clear distance and a vertical clear distance; detecting the burial depth; collision detection; carrying out comprehensive detection and cross section analysis; longitudinal section analysis, wherein the longitudinal section analysis is used for analyzing and displaying pipe point information between the selected pipelines; flow direction analysis; communication analysis: according to the function logic of the communication analysis, analyzing all the pipelines on the shortest path for communicating the pipelines and the pipeline points according to the specified pipelines or pipeline points; and pipe explosion analysis: analyzing pipe sections and areas influenced by pipeline fracture or valve closing according to the pipeline subjected to explosion or a pipe point needing to be closed, and giving out a valve closing scheme. According to the method, the high-frequency use data is identified and stored in the memory database, so that the analysis efficiency is remarkably improved on the premise of ensuring the accuracy of a detection result; various efficient space queries provided by the WisemapGisServer are fully utilized, and the problems of time-consuming range filtering and the like are solved.

The present invention discloses a method, system, device and medium for cross-section analysis of underground pipeline information. The method includes obtaining an electronic map of the analysis area and the layout pipe segments of the underground pipelines in the analysis area in the electronic map; drawing an intersection line based on the analysis area, marking the intersection element points of the intersection line and the layout pipe segments, and performing cross-section analysis on the attribute fields of the intersection element points to generate a cross-section analysis result and a longitudinal section analysis result; setting classification fields, and counting the length and quantity of the target pipelines in the analysis area. The present invention provides an electronic map of the analysis area through an underground pipeline management platform, incrementally displays the layout pipe segments of the underground pipelines on the electronic map of the analysis area, and draws an intersection line according to construction requirements to determine the pipeline information of the intersection element points, replacing the traditional method of manually carrying instruments to go to each destination in turn for orderly detection, improving the detection efficiency and shortening the construction period.

The application discloses a fixing device for tire section analysis, and relates to the technical field of tire section analysis, in particular to a fixing device for tire section analysis. The application utilizes the friction force between the inflation air bag and the inner wall of the tire section to fix the tire section, makes the tire section bear force uniformly, avoids partial stress, and further avoids deformation of the tire section, improves the accuracy of geometric data collection of the tire section, and the fixing assembly can realize rotation and lifting of the tire section, so that the tire section can collect geometric data at multiple angles, and improves the data collection efficiency.

The invention discloses a Yellow River downstream dam stability rapid evaluation and early warning method. The method comprises the following steps: S1, unmanned aerial vehicle positioning and river channel parameter identification; s2, analyzing a river surface flow field; s3, inverting and verifying the water depth of the river channel; and S4, dam bank section analysis and stability judgment. According to the method, GPS data and a river channel surface video are acquired through an unmanned aerial vehicle, a flow field is analyzed by using a PIV technology, the water depth is inverted in combination with an innovative calculation formula, a dam bank section is intercepted based on an underwater topographic map, the stability of the dam bank is judged, and early warning is issued. The method is suitable for the field of Yellow River downstream dam bank stability analysis, can efficiently and accurately evaluate the dam bank stability, and has the advantages of scientificity and practicability.

Disclosed is a combined numerical and graphical grid and matrix cross-section analysis method for use in structural simulation calculations. The method comprises the following steps: decomposing and discretizing an analyzed component object, and on the basis of grid locations occupied by units after decomposition and discretization, determining a cross-sectional shape and locations of the units; using a mathematical tool capable of performing a matrix operation, using a grid to express a cross-section, determining coordinates by means of a cross-section grid, and using a matrix sequence to represent a cross section of the entire component; implementing matricization of component information by means of combined graphical and numerical value assignment simulation of all cross sections. The present invention uses a spatial grid to simulate a cross section of a component, and by means of establishing discrete grid units, using combined numerical and graphical means, using a matrix positioning method for grid coordinates, and using a multi-dimensional digital matrix to record data, it is possible to establish a unified structural component input and analysis module, which can implement simulation of a structural system in the most intuitive and concise way, and provide considerably effective analysis result display.

The invention discloses an electric power system operation mode rapid backtracking method, system and device based on section analysis and a storage medium, and the method comprises the steps: executing AC power flow N-K scanning in a historical main operation mode of a power grid, and recognizing power flow sections with overload out-of-limit of other lines after elements are cut off; calculating a power transfer coefficient of the cut element to each overload line in the section, and establishing a section inequality describing a section power change relation based on the transfer coefficient; when the planned line is shut down and overhauled, reading a stored section inequality related to the line to be overhauled, performing backtracking calculation according to the section inequality in combination with historical operation data similar to the current operation scene, and evaluating the overload risk of other lines in the section after the overhauled element is cut off; and the controllability of the section in a historical similar scene is judged based on the overload condition so as to evaluate the feasibility of the maintenance plan. The requirements of scheduling personnel on calculation efficiency and real-time performance are met, and a basis is provided for line maintenance outage plan arrangement.