76 results about "Target line" patented technology

The utility model discloses a kind of visual calibration device of astigmatism eye focal line, comprising: axial position scale board, board face is printed with E-type visual target for distant visual detection;Cross visual target disc, coaxially rotatably embedded in through-hole;Several groups of pinholes, each group is arranged along visual target line two sides straight line, pinhole center connecting line is parallel with corresponding visual target line;Fixed shaft is through cross visual target disc center, and is mechanically connected with transmission device;LED light source, set in axial position scale board back surface.The utility model has beneficial effect: the utility model can provide clear and visible and invariable measured astigmatism eye objective existence astigmatism focal line of the person being examined, and can accurately determine the clear criterion that cross visual target line coincides with the focal line, so as to maximumly improve the accuracy of astigmatism eye astigmatism axial calibration, reduce the deviation of calibration astigmatism axial direction and actual astigmatism axial direction, improve determination accuracy and determination work efficiency.

Embodiments of the present disclosure relate to a line-of-sight estimation method, device, equipment and medium, wherein the method comprises: obtaining a first eye image to be estimated for a line-of-sight direction, and a plurality of second eye images carrying line-of-sight direction information; combining the first eye image and each of the plurality of second eye images to obtain a plurality of image groups; obtaining correlation information between the plurality of image groups, and based on the correlation information between the plurality of image groups, obtaining line-of-sight difference information and weight information corresponding to each of the plurality of image groups; and based on the line-of-sight difference information and the weight information corresponding to each of the plurality of image groups, and the line-of-sight direction information carried by each of the plurality of second eye images, determining a target line-of-sight direction of the first eye image. Embodiments of the present disclosure can additionally determine the correlation information between the plurality of image groups, and determine the line-of-sight direction of the first eye image based on the correlation information, thereby effectively guaranteeing the accuracy and reliability of the final line-of-sight direction.

This invention discloses a method, apparatus, medium, and device for adjusting the multi-segment layout of circuit diagram traces. The method includes: determining a target line segment and its displacement point, and multiple pushing lines parallel to the target line segment located on the target line segment's movement path, wherein the slope and connection relationship of the preceding and following line segments remain unchanged during the target line segment's movement; selecting the pushing line segment closest to the target line segment as a comparison line segment, and sorting the pushing line segments according to a preset order; sequentially finding pushing line segments whose inflection points with the comparison line segments are not all located on opposite sides of each other as new comparison line segments, and selecting the other pushing line segments as merged line segments; sequentially moving each comparison line segment in the normal direction to a preset distance beyond the displacement point, and merging the two when it connects with the merged line segment during the movement; and moving the target line segment in the normal direction until it is collinear with the displacement point. This invention can automatically move other conflicting parallel line segments during the movement of the target line segment.

The application discloses a rail transit monitoring information playback method and device, equipment, medium and product, and relates to the technical field of data processing. The method comprises the following steps: reading a target line number and a playback time period from a received historical playback instruction; obtaining a plurality of historical rail transit data matched with the line number and the playback time period from a pre-constructed time sequence database table; wherein the historical collection time of the historical rail transit data is within the playback time period, and the historical rail transit data at least comprises historical ATS train operation monitoring data, historical ATS equipment monitoring data, historical integrated monitoring system monitoring data, historical passenger flow monitoring data and historical operation organization adjustment data; and sequentially outputting the plurality of historical rail transit data from early to late according to the historical collection time. The application effectively improves the efficiency and accuracy of fault judgment, and further improves the efficiency and accuracy of fault judgment of operation management personnel.

The application discloses a kind of calibration methods, equipment, medium and product for line spectral confocal system, involve line spectral confocal calibration technical field, the method comprises: obtaining the spectral image formed by the plane mirror of different height measured at each calibration point of target line spectral confocal system, obtain the target spectral image of each calibration point;The peak sub-pixel level extraction is carried out to the target spectral image of each calibration point according to column, and the peak position-height corresponding data of each column spectral data of each calibration point is obtained;Based on the peak position-height corresponding data of the same column spectral data of all calibration points, data set is constructed;Based on each data set constructed, combined with the constraint condition set, respectively carry out cubic spline fitting, obtain the cubic spline fitting model of each column spectral data of target line spectral confocal system, wherein, constraint condition includes boundary condition and smoothing condition;The calibration precision of line spectral confocal system is improved.

The application discloses a kind of line current anomaly analysis method and system, method includes: obtaining line current sequence and extracting target line current;Match historical current data to correct and obtain target initial line current;The instantaneous variation of each current and reference is calculated, whether the doubtful abnormal point of non-continuity is screened according to the threshold and the continuity of variation;The attitude angle of sensor is obtained at reference time and suspicious time, respectively reference current and suspicious current are decomposed into X axis, Y axis, Z axis three-dimensional component;By comparing whether each axis component deviation is over threshold, multidimensional anomaly determination is carried out.The application improves reference accuracy by historical data correction, effectively distinguishes transient disturbance and continuous fault by continuity judgment, and realizes current space three-dimensional decomposition and diagnosis by combining attitude angle, which significantly improves the accuracy, robustness and fault type recognition ability of anomaly detection.

The application discloses a kind of circuit layout's wiring line segment linkage adjustment method, device, medium and equipment.The method comprises: obtaining target line segment and its moving terminal;Judge whether the intersection of the extension line of the adjacent line segment before and after target line segment exists between the detection line parallel to target line segment and target line segment passing through moving terminal;If there is no intersection, find the associated line segment on other wiring closest to target line segment parallel to target line segment between the detection line and the straight line where target line segment, the adjacent line segment before and after are located;Keep the slope and connection relationship of the adjacent line segment before and after associated line segment unchanged, move associated line segment in normal direction towards moving terminal, until length becomes zero or crosses moving terminal and is spaced from moving terminal by preset line distance;Keep the slope and connection relationship of the adjacent line segment before and after target line segment unchanged, move target line segment in normal direction towards associated line segment, until spaced from associated line segment by preset line distance.The application can realize the joint movement of other associated line segment when moving line segment.

A multi-frame coherent detection and tracking method for weak target line spectra is disclosed, based on multi-frame coherent integration. Step 1: Perform multi-frame coherent integration on the passive sonar received data to obtain measured values; Step 2: Establish a state equation including a target presence indicator variable; Step 3: Establish a multi-frame coherent integration measurement equation based on the coherence of the signal phase in the multi-frame data; Step 4: Derive the likelihood ratio function based on multi-frame coherent integration that matches the measurement equation; Step 5: Combine the measured values ​​from Step 1 and the multi-frame coherent detection and tracking model established in Steps 2 to 4, and use a particle filter iterative algorithm to obtain a more robust target line spectrum detection and tracking result. This invention addresses the problem of numerous missed detections in single-frame detection and tracking methods caused by amplitude fluctuations in the received signal in dynamically time-varying marine acoustic channels. It can be applied to most sonar equipment.

An electronic device comprising: a memory storing instructions; and at least one processor configured to execute the instructions, wherein, by executing the instructions, the at least one processor is configured to: acquire an input image, acquire line map information indicating positions of a plurality of lines in the input image, acquire two-dimensional (2D) mesh map information including a plurality of meshes corresponding to the input image, identify a target line of the plurality of lines included in the line map information that intersects the plurality of meshes included in the 2D mesh map information, identify a size of the target line, identify a degree of radial distortion of the target line based on the size of the target line, perform distortion correction on the target line based on the degree of radial distortion, and acquire a corrected image corresponding to the input image based on the distortion correction.

The present application relates to the technical field of optical lens design, and discloses a lens design method and system for interlayer angle cumulative offset, comprising: constructing polar coordinate layered topology parameters; generating pre-optimization angle coefficients and each layer starting phase sequence through geometric shading conditions deduction and safety factor adjustment; constructing spiral point array coordinate set based on target line density method and polar coordinate rotation transformation; calling radial ray collision detection algorithm for shading evaluation, combining numerical gradient iterative optimization and rational number avoidance strategy to extract optimization angle coefficients of maximum corridor shading rate; generating lens processing coordinate file through smooth transition constraint verification and boundary clipping. The present application can effectively shield the radial visual corridor and improve the night vision quality of myopia prevention lenses.

This invention belongs to the field of oil and gas seismic exploration and discloses a method for initial velocity modeling in complex exploration areas based on compaction laws. The method includes the following steps: establishing a complex structural model and converting it into a parametric model; reconstructing well logging curves using AI to obtain full-depth velocity curves; segmenting the well logging curves according to formations and establishing the relationship between burial depth and velocity, i.e., statistical compaction laws; filling the statistical compaction laws into the parametric model to obtain the initial velocity model; and adjusting the velocity. This invention generates an initial velocity model that conforms to geological laws, improving the accuracy of velocity modeling, especially in areas with dual complexity. It significantly improves the migration effect in complex areas and also increases the efficiency of velocity generation. After establishing an initial velocity model for a dual complexity area, the target line deviation effect was significantly improved. This method is applicable to the establishment of initial velocity models, especially in areas with dual complexity.

An intelligent anti-theft electricity distribution system, method, electronic device and storage medium, the system comprises: a data acquisition module configured to acquire current data, power data and temperature data of a power distribution line; a data processing module configured to perform spatio-temporal alignment processing on the current data and the temperature data to obtain a current temperature data matrix, and construct a node current balance equation based on the current temperature data matrix and the power data; a confidence generation module configured to construct a Bayesian network based on a preset historical electricity theft case library, input a calculation result of the node current balance equation into the Bayesian network for time series probability inference calculation to obtain a electricity theft behavior confidence; an instruction generation module configured to match a preset risk level according to the electricity theft behavior confidence, and generate a risk disposal instruction according to the risk level; and an execution module configured to determine a target line to perform a target operation according to the risk disposal instruction. The technical solution provided by the present application can solve the technical problem of single detection dimension.

This invention discloses a method, apparatus, storage medium, and electronic device for adjusting circuit layout routing. The method includes: acquiring a target line segment and its endpoint; constructing a search rectangle enclosing the endpoint and the target line segment along a preset direction; finding, within the search rectangle, a vertex belonging to other traces, where the included angle of the preceding and following line segments faces away from the target line segment, the angle bisector of the preceding and following line segments is perpendicular to the target line segment, and the endpoint is located on the same side of the target line segment as an associated vertex; detecting whether a detection line segment passing through each associated vertex and whose perpendicular angle bisector is intercepted by the line containing the preceding and following line segments of the target line segment intersects with the associated vertex, and designating the associated vertex with the intersecting result as a pushing vertex; maintaining the slope and connection relationship of the preceding and following line segments of the target line segment and the pushing vertex unchanged, moving the target line segment towards the endpoint in the normal direction, and simultaneously moving the pushing vertex. This invention enables the synchronous movement of other associated vertex points while moving the line segment.

An electronic apparatus including: a memory storing instructions; and at least one processor configured to execute the instructions, wherein, by executing the instructions, the at least one processor is configured to: acquire an input image, acquire line map information indicating positions of a plurality of lines in the input image, acquire two-dimensional (2D) grid map information including a plurality of grids corresponding to the input image, identify a target line intersecting the plurality of grids included in the 2D grid map information among the plurality of lines included in the line map information, identify a size of the target line, identify a degree of radial distortion of the target line based on the size of the target line, perform distortion correction on the target line based on the degree of radial distortion, and acquire a corrected image corresponding to the input image based on the distortion correction.

FIELD: radar technology.SUBSTANCE: invention relates to passive methods of protecting radar stations (RLS) from homing high-precision weapons (HPW) with a passive homing head (PHH), which include anti-radar missiles (ARM). The radar station and an additional radiation source (ARS) synchronized with it emit coherent signals in the direction of the spatial position of the ARM. These devices represent a source of spatially diverse interference to the passive homing head of a missile. The normal to the phase front of the resulting electromagnetic wave differs from the normal to the phase front of the radar. As a result, the missile's passive homing head is oriented in the direction of the false target, which is different from the direction of the protected radar. The condition for the interference impact is the provision at the input of the receiving antenna of the PGSN of an inversion zone of the total wave front of the resulting signal of the radiation sources with certain amplitude-phase relationships, as well as the provision of a change in the angular velocity of rotation of the missile-target line of sight.EFFECT: increased radar's protection against anti-missile missile attacks by diverting its guidance trajectory to a false point from the protected radar.1 cl, 2 dwg

The application discloses a high-voltage line plug operation control method, a robot and a storage medium, and belongs to the technical field of power maintenance. The application executes a first plug changing action on a target line through first control data, the first plug changing action includes a plug-in action and a plug-out action; a tension detection device is controlled to detect first tension data of the target line and collect environmental data of the target line; when the first plug changing action fails, a tension response model of the first plug changing action is determined according to the first tension data, the environmental data and the first control data; second control data is generated according to the tension response model and the abnormal action of the execution failure, and a second plug changing action is executed according to the second control data, thereby realizing the technical effect of improving the scene adaptability of the robot.

The application relates to the technical field of metal mesh etching, in particular to a metal local etching method and a printing screen for photovoltaic cells, and the method comprises the following steps: performing degreasing, washing and drying treatment on a metal mesh to be etched; coating photoresist on the surface of the metal mesh, and pre-baking the metal mesh after coating; aligning a mask with the metal mesh, cross-linking and solidifying the photoresist in the exposed area through an exposure operation to form a protective layer; removing the photoresist in the unexposed area by using an alkaline developing solution; etching the surface of the metal mesh, taking out the metal mesh after the metal of the metal mesh reaches a target line diameter, and performing etching post-treatment; heating the metal mesh, forming a micro gap between the photoresist and the surface of the metal mesh, stripping the photoresist, and cleaning to obtain a local etching metal mesh. The method can control line diameter error and improve pattern precision through the slit coating and visual positioning exposure process, and can meet the production requirements of most fine grid lines.

This application discloses a method for safety assessment of uneven settlement of transmission towers, relating to the field of power engineering monitoring technology. The method includes: acquiring multiple SAR images covering the target transmission line corridor within a preset time period; determining multiple transmission towers and their tilt conditions based on the SAR images and a target detection model; determining the limit state values ​​corresponding to each tilt condition based on the tilt conditions, a surrogate model, and a finite element model. The limit state values ​​are calculated based on the allowable stress and maximum component stress of the transmission tower, and the finite element model is established based on the mechanical performance state of the transmission tower components. Based on the limit state values, a safety assessment of the transmission tower's settlement is performed to obtain the assessment results. This application obtains the limit state values ​​of the transmission tower through a surrogate model and a finite element model, correlating the tilt conditions of the transmission tower with structural mechanics, thereby improving the accuracy of the transmission tower safety assessment.

The application relates to a hierarchical double-tank coordinated inflation method and device based on head collision point prediction, and belongs to the technical field of airbag inflation. The method comprises the following steps: taking the midpoint of a vehicle bumper as an origin, taking the vehicle head direction as an x axis, taking the left side of the vehicle as a y axis, establishing a coordinate system, and converting a vehicle front collision area into a plurality of line segments in the coordinate system; based on the height of a pedestrian, the distance from the pedestrian to the origin, the relative speed, the azimuth angle and the body inclination angle of the pedestrian, the initial coordinates of the head of the pedestrian, the velocity components of the pedestrian on the x axis and the y axis are calculated; the head prediction coordinates and the shortest distance of each line segment are calculated, the line segment corresponding to the shortest distance less than a first preset threshold value is determined as a target line segment, and the remaining time from the current time to the occurrence of the collision is determined; based on the target line segment, the remaining time and the required inflation time of each airbag, an inflation strategy is determined. The method provided by the application improves the inflation efficiency and realizes that the external safety airbag is inflated when the personnel collides with the vehicle.

The application discloses a high-orbit satellite line-of-sight correction method based on earth curvature matching, which comprises the following steps: (1) constructing a target line-of-sight vector calculation model of a high-orbit satellite camera; (2) solving a coordinate set of a theoretical earth edge point and extracting a coordinate set of an actual earth edge point; (3) fitting a theoretical earth edge curve and an actual earth edge curve and constructing a coordinate point pair with consistent curvature characteristics; (4) constructing a line-of-sight compensation matrix and solving three-axis rotation compensation angles in the line-of-sight compensation matrix by using the coordinate point pair obtained in step (3); and (5) adding the line-of-sight compensation matrix in the target line-of-sight vector calculation model, realizing the unification of the theoretical earth edge and the actual earth edge and completing line-of-sight correction. According to the application, only a single frame of image containing the earth edge is needed to complete the line-of-sight correction with high precision.

This application relates to the field of medical device testing technology, specifically a phantom and method for coronal plane reflection detection in a three-dimensional imaging device. The phantom includes: a top panel and a sealed space inside the acoustic window filled with a background tissue-like material; target lines embedded in the background tissue-like material; an acoustic window, a window for ultrasonic wave transmission, simulating the acoustic characteristics of human epidermal tissue; the background tissue-like material is a water-based polymer gel-based composite material; target lines, with their upper ends fixed in openings in the top panel and their lower ends free; used for quantitative measurement of imaging parameters in the coronal plane, where the coronal plane is a plane parallel to the horizontal plane when the human body is prone on the three-dimensional ultrasound imaging device; the imaging parameters include the lateral linearity, longitudinal linearity, axial image resolution, and lateral image resolution of the reflected image in the coronal plane; the center-to-center distance between two adjacent target lines is a predetermined distance; the predetermined distance is determined by the resolution of the three-dimensional ultrasound imaging device at the corresponding position in the coronal plane.

This invention provides a method and system for detecting faults in distribution network lines based on unmanned aerial vehicle (UAV) inspection, belonging to the field of power grid fault detection and identification technology. The method includes: determining a target line based on line anomaly information and obtaining the path information of the target line; dispatching a UAV to inspect along the target line direction, obtaining magnetic field measurements, UAV position data, and the distance between the UAV and the target line, thus obtaining a magnetic field sampling sequence; constructing a magnetic field distribution map along the target line based on the preprocessed magnetic field sampling sequence; determining suspected anomaly locations, fault types, and fault location information based on the magnetic field distribution map, and outputting the magnetic field distribution map, fault type, and fault location information to a display terminal for display. This method enables rapid inspection of abnormal distribution network lines, achieving identification of suspected anomaly locations, fault type discrimination, fault location information determination, and visual display, thereby improving the efficiency of distribution network line fault inspection and maintenance.

This invention discloses an automatic impedance line adjustment method, device, and medium, relating to the field of impedance line design technology. The method includes: identifying whether two input target lines are impedance lines; if so, acquiring their spatial constraint data on the circuit board plane; determining the relative positional relationship of the two impedance lines through vector operations to distinguish the upper and lower lines; extracting the outer spatial constraints of both lines from the spatial constraint data based on this relationship, and determining the available outer space; calculating the current actual spacing between the impedance lines, and calculating the target spacing and movement compensation amount based on impedance model parameters; determining the movement direction and distance of the upper and / or lower lines based on the available outer space and movement compensation amount, and controlling their movement; after the movement is completed, performing operations to merge adjacent line segments and delete redundant line segments on the line graphic to optimize the layout. This invention achieves efficient, accurate, and adaptive adjustment of impedance line spacing, effectively avoiding spatial interference and adapting to constraints in multiple scenarios.

The application relates to the electric power technical field and provides a fault distance determination method and device and a computer readable storage medium, the method comprises the following steps: acquiring the line length of each sub-line of a plurality of sub-lines of a power transmission line and the line type of each sub-line; the line type comprises a cable line or an overhead line; monitoring the zero sequence voltage or the zero sequence current, the phase current and the current traveling wave of the power transmission line through a traveling wave detection device located at the head end of the power transmission line; determining whether the power transmission line has a fault according to the zero sequence voltage or the zero sequence current and the phase current; in the case that the power transmission line has a fault, determining a preliminary fault length according to the current traveling wave and the line type of a first line; the first line is a sub-line where the traveling wave detection device is located; and determining the target fault length of the fault point from the traveling wave detection device and the target line type of the sub-line where the fault point is located according to the preliminary fault length, the line length of each sub-line and the line type of each sub-line. The accuracy of fault position determination can be improved.

This invention relates to the field of underwater acoustic signal processing technology, and in particular to a method for enhancing the line spectrum of moving targets based on an elite selection genetic algorithm. Based on the Doppler-warping transform, the method utilizes an elite selection genetic algorithm to autonomously optimize and estimate the target's motion parameters. Using the entropy of the transformed target signal's spectral function as the cost function, the optimal motion parameters are searched by comparing the spectral entropy values ​​under different parameters. Then, the optimal parameters are used to perform a Doppler-warping transform on the original signal, refocusing the line spectrum energy dispersed by the Doppler effect near the original frequency, thus achieving autonomous enhancement of the moving target's line spectrum. This invention effectively solves the problems of the inability to accumulate moving target line spectrum energy over long periods and the autonomous search of Doppler-warping transform parameters, improving the probability and accuracy of line spectrum detection. It can be applied to data backtracking and review processing in underwater moving target detection, and has good engineering practical value.

This invention relates to the fields of microelectronics manufacturing and precision surface engineering, comprising: a laser unit for generating and controlling a laser beam, an electrodeposition unit for providing an electric field, a detection unit for real-time online monitoring of coating thickness and edge contour, and a control unit for dynamically adjusting laser and electrochemical parameters based on monitoring data. The process steps include: substrate pretreatment, plating solution preparation, intelligent matching of initial parameters based on the target linewidth, adaptive closed-loop deposition, and post-processing. During deposition, by real-time detection of coating thickness and edge overflow, the control unit dynamically adjusts the laser single-pulse energy, scanning speed, and current density to compensate for process disturbances. This invention solves the problems of low pattern accuracy, poor edge localization, and weak process adaptability in existing technologies, achieving high-precision micro-pattern fabrication with linewidth accuracy controlled within ±1% and edge overflow ≤0.5μm, thus improving process stability and product yield.

This application discloses a method, apparatus, device, medium, and product for constructing a three-dimensional grid, relating to the field of data processing technology. The method includes acquiring line string data of a target object corresponding to a grid to be constructed, wherein the line string data includes line string data of a first open line string and a second open line string of the grid to be constructed; based on the line string data, marking the first open line string and the second open line string as a reference line string and a target line string, respectively; dividing the target line string into convex segments and non-convex segments based on the line string data; constructing a non-convex segment grid and a convex segment grid based on the convex segments, non-convex segments, and the reference line string; and determining the target grid based on the convex segment grid and the non-convex segment grid. This application solves the technical problem in the prior art that it lacks adaptability when constructing grids for lines with large morphological changes in different regions of the line string, resulting in grids that do not conform to visual perception.