59 results about "Horizontal and vertical" patented technology

The invention relates to the technical field of geotechnical engineering, in particular to a slip crack surface calculation method for a limited-width soil body in an active non-limit state. Comprising the following steps: step 1, determining a gradual exertion rule of a limited soil body internal friction angle and cohesion between the rigid gravity type retaining wall and an existing bedrock, a wall-soil external friction angle and wall-soil interface cohesion developing along with the displacement of the retaining wall, and establishing mathematical characterization of limited soil body non-limit state strength parameters developing along with the displacement of the retaining wall; step 2, establishing a relationship among the horizontal stress, the interlayer shear stress and the average vertical stress; step 3, establishing a balance equation of the rectangular area and the triangular area in the horizontal and vertical directions; 4, solving the slip crack surface inclination angle meeting the plastic upper limit theorem by adopting a numerical method; and 5, calculating the resultant force of the horizontal active soil pressure and the upsetting moment of the horizontal active soil pressure on the wall heel. The method provides a theoretical calculation basis for the design of the soil retaining structure under the working condition of the limited-width soil body.

The invention belongs to the technical field of ultra-precise angle measurement, and discloses a three-dimensional angle measurement device and method based on wavefront interference fringes. According to the invention, two wavefront interference light spots are generated by using two paths of detection laser in a single interference measuring head with only a single coordinate reference, the spatial frequencies of respective fringe images in the horizontal and vertical directions are respectively calculated, and simultaneous decoupling is carried out so as to accurately measure the pitching, deflection and rolling angle deviations of the reflector. According to the three-dimensional angle measurement device, point-to-point three-dimensional angle measurement can be achieved, the measurement resolution is high, the measurement result can be directly traced to the laser wavelength, and the requirement of high-end equipment for ultra-precise three-dimensional angle measurement is met.

The utility model discloses a cable strand steel wire positioning device. The positioning device consists of a frame body, a fixing piece and a shaft, the shaft consists of a vertical shaft and a transverse shaft; the vertical shaft and the transverse shaft are respectively fixed by a bearing seat and a bearing on the inner side of the frame body and are arranged in a self-rotating manner; a wire penetrating hole is formed between the vertical shaft and the transverse shaft. And the top edge and the side edge of the frame body are provided with corresponding horizontal and vertical coordinate marks corresponding to the threading holes. The horizontal coordinate and the vertical coordinate are arranged on the device, the steel wire penetrates through the device in a positioning mode according to a coordinate comparison table, the steel wire is prevented from being misplaced, twisted and abraded in operation when the main cable strand is manufactured, and the production efficiency and the product quality of the main cable strand are effectively improved.

The invention discloses a 2D / 3D visual calibration plate for industrial manufacturing, which comprises a calibration plate body, a plurality of target patterns are arranged on the calibration plate body, the target patterns comprise circular patterns and / or square patterns, and the circular patterns are used for calculating an ellipse center point under imaging perspective deformation of an industrial robot camera; the checkered pattern comprises cross lines and digital labels and is used for calibrating the tail end of the industrial robot, and calibration comprises calculation of a coordinate transformation relation between a camera coordinate system and a robot coordinate system. According to the method, the calibration is more precise through the structural optimization of the calibration plate, the calibration process is simplified through the three-point method, the calculated amount is extremely small, the calibration precision and efficiency are remarkably improved, the coordinate axis orientation is assisted through the arrangement of the asymmetric pattern, the horizontal and vertical coordinate axes are judged through the assistance of the grid pattern, and the robustness is improved.

The invention relates to the technical field of geological survey and surveying and mapping, and discloses an inclination angle measurement auxiliary mechanism in surveying and mapping engineering and a measurement method.The mechanism comprises a mounting base and a load-bearing base, a drop hammer located in a hollow cavity of a telescopic connecting rod is arranged on the side, facing the load-bearing base, of the bottom of the mounting base, and a first emitter is arranged at the bottom of the drop hammer; a first detector is arranged in the center of the bearing base; at least three groups of pressure sensors are uniformly distributed in the hollow cavity of the telescopic connecting rod and are relatively positioned on the peripheral side of the drop hammer; a second emitter is arranged on the first rigid supporting rod, and second detectors are arranged at the positions, corresponding to the second emitter, of the second rigid supporting rod and the third rigid supporting rod; the inclination angle measurement auxiliary mechanism is used in cooperation with a geological compass, a surveying and mapping marker post or a geodetic surveying and mapping device, leveling in the horizontal direction and the vertical direction can be automatically achieved, a user does not need to manually operate in the inclination angle measurement process or do not need to subjectively feel to adjust the compass, the measurement workload is reduced, and the measurement precision is improved.

The invention relates to an aircraft flight path planning method based on inertial navigation, and the method comprises the steps: obtaining the coordinates of M route points on the total flight path of an aircraft, the total flight path of the aircraft comprises the flight path of M + 1 segments, and each segment is provided with a plurality of sub-segments; constructing an independent variable of a target function according to an item representing a remaining voyage corresponding to a point on the track of the segment, an item representing a remaining voyage corresponding to a starting end point of the track of the target segment, and an item representing a remaining voyage corresponding to an ending end point of the track of the target segment; constructing the target function according to the independent variable of the target function, the item representing the coefficient of the segment and the item representing the primary function; according to the coordinates of the M waypoints, based on the inter-segment transition condition of the objective function, solving a total coefficient set including the coefficient set of each segment; and according to the objective function and the total coefficient set, determining a horizontal and vertical coordinate corresponding relation set of each segment so as to determine the track of each segment.

The application discloses a metal detection method for real-time correction of product state, comprising: collecting a detection point set of a measured product when the product passes through a probe and calculating a geometric center; extracting a main feature vector and a secondary feature vector orthogonal to the main feature vector based on an Euclidean distance; rotating and aligning in the direction of the main vector and extracting main / secondary direction components after rotation, taking the components and an angle between the main vector as features for recording and caching; calculating an effective average rotation angle and horizontal and vertical judgment thresholds based on a number of qualified records in the cache; translating the point set of a product to be measured and rotating to an aligned coordinate system according to the effective average angle, and comparing the point set after rotation with the effective threshold to determine whether the product is qualified or not. The method realizes online adaptive updating of the threshold based on the nearest qualified sample, can correct in real time under the condition of no shutdown along with the slow change of the product state, reduces false positives and maintains detection sensitivity.

The present invention relates to the technical field of ship navigation operations, and provides a three-dimensional route monitoring method and system. The method includes determining the current segment based on the horizontal and vertical distances between two waypoints in the segment; calculating the horizontal deviation distance and the intersection point of the underwater vehicle and the current segment, and calculating the depth deviation distance and the three-dimensional deviation distance based on the intersection point; detecting whether there is an obstacle hazard using a fan-shaped detection azimuth interval method; obtaining the current water depth based on grid terrain data or nautical chart data, and calculating the true water depth based on tidal data and the current water depth; calculating the depth of the underwater vehicle from the water bottom based on the true water depth, and detecting whether there is a depth hazard based on the depth from the water bottom. The present invention solves the problem that traditional two-dimensional segment judgment cannot adapt to the three-dimensional underwater environment. It enables the vehicle to accurately identify the current segment even in complex sea conditions, grasp the true water depth of the current position in real time, effectively avoid dangers such as collisions with submarine mountains, and improve the safety of deep-sea navigation.

The utility model provides a test device for simulating connection channel pipe-jacking method construction, the test device comprises a model box, a main tunnel model and a connection channel model, the main tunnel model is arranged in the model box, one side of the main tunnel model is provided with a through hole, the connection channel model is located in the main tunnel model, and the through hole is arranged in the connection channel model. A soil body is filled between the interior of the model box and the main tunnel model; a supporting device, a pushing device and a detection device are arranged in the main tunnel model, the supporting device is used for applying pre-supporting force to the pipe wall of the main tunnel model in the horizontal direction and the vertical direction, one end of the pushing device is connected with the supporting device, and the other end of the pushing device is used for pushing the connection channel model to enter the soil body through the through hole; the detection device is used for detecting strain and stress of the main tunnel model in real time. According to the utility model, actual construction conditions can be simulated, and the influence of different jacking forces and pre-supporting forces on the main tunnel structure can be researched.

This invention discloses a method for evaluating the quality of marine controlled-source electromagnetic data, belonging to the field of data quality evaluation technology. The method includes: projecting the acquired marine controlled-source electromagnetic data onto a two-dimensional plane, whereby the real and imaginary parts of the data signal are projected onto the horizontal and vertical coordinates to obtain the data distribution; performing cluster statistics on the data distribution using the K-medoids clustering method to obtain cluster centers; and using the cohesion (CP) calculation formula to perform aggregation degree analysis on the data distributed according to the cluster centers to obtain the data quality assessment result. This invention can directly quantify and evaluate data based on the cohesion of the electromagnetic data distribution characteristics, without defining empirical functions, requiring no specific data volume, and is unaffected by fly-spot data, thus improving the applicability and accuracy of the evaluation method.

The invention discloses a surface topography detection probe device and method based on active deflection compensation, and the device comprises an up-down displacement measurement module which is used for carrying out the measurement of the vertical displacement of a contact probe through a split type multi-polar-plate capacitive sensor structure; the up-and-down force balance control module and the up-and-down displacement measurement module form a second closed-loop control system and are used for controlling the contact force between the contact pin and the surface of the sample to be constant; the front and back deflection measurement module is used for detecting the deflection amount of the contact pin in the scanning direction; the front-back deflection control correction module and the front-back deflection measurement module form a first closed-loop control system and are used for calculating required correction torque through a closed-loop control algorithm and applying reverse driving force to counteract deflection caused by shearing force, and the two closed-loop systems work cooperatively to control the probe in the horizontal direction and the vertical direction. The problems that when an existing probe scans a complex shape, a track deviates due to shearing force, and the signal-to-noise ratio of displacement measurement is insufficient are solved.

The invention discloses a virtual gift guiding method and system fusing AR navigation and LBS, particularly relates to the technical field of augmented reality, and is used for solving the problem that a user is difficult to position targets at different height levels due to lack of guidance in the vertical direction in a complex three-dimensional space in existing augmented reality navigation. Height data of a user and a target position are obtained and fused, a height difference is calculated, and the matching degree between the change trend of the height difference and the vertical motion intention of the user is analyzed, so that joint reasoning is intelligently triggered; further identifying a channel connected with a vertical layer, and evaluating the visual discoverability of the channel and the spatial cognitive state of the user; and finally, dynamically selecting a visual coding strategy based on an evaluation result, and generating and rendering a composite virtual guidance element which integrates horizontal and vertical direction guidance in an augmented reality interface, so that visual and accurate full-dimensional space navigation is realized.

This invention discloses an automatic finite element modeling method and system based on construction drawings. The method includes: automatically outputting unannotated construction drawings as annotated ones using a computer vision-based construction drawing recognition module; assigning horizontal and vertical axis numbers and 3D coordinate information to each building component on the annotated construction drawings using a grid dimension recognition module; automatically recognizing and fusing the dimensional information of each building component on the annotated construction drawings with their assigned horizontal and vertical axis numbers and 3D coordinate information using a large language model as an automatic modeling module; naming and assigning material properties to each building component in the 3D geometric model; and automatically creating a visualized finite element model based on the construction drawings by assigning support constraint information and load information to the 3D geometric model. This invention has the advantages of high modeling efficiency, high quality, and replacement of manual labor.

This invention discloses a coordinate transformation method for lane line recognition. Based on a high-quality image acquisition system and the analysis and derivation of the world coordinate transformation algorithm in lane line recognition, it further analyzes and derives the transformation method between the image coordinate system and the camera coordinate system regarding the horizontal and vertical coordinates, and points out existing problems and optimization directions in the coordinate transformation algorithm. To simplify the coordinate transformation calculation, a coordinate transformation method based on tanγ0 calibration is derived. Six methods for tanγ0 calibration are proposed, and the optimal method is selected for calibration. Substituting the tanγ0 calibration value into the transformation formula achieves the coordinate transformation function for lane line recognition. Finally, the transformation method is tested, and hardware installation suggestions for improving coordinate transformation accuracy are given, effectively improving the accuracy and real-time performance of coordinate transformation, thereby improving the accuracy of automatic lane line recognition.

The present application relates to the technical field of safety monitoring of water conservancy and hydropower projects, and in particular to an arch dam displacement monitoring device and method based on laser alignment and ranging, wherein the device comprises: a relative displacement measuring component for obtaining horizontal and vertical displacements perpendicular to a target direction between adjacent measuring points of a plurality of measuring points of the arch dam, and obtaining horizontal displacements along the target direction between adjacent measuring points; a displacement coordinate conversion component for converting the obtained horizontal and vertical displacements into relative horizontal and relative vertical displacements in a target coordinate system based on a preset geometric projection relationship; an arch dam displacement monitoring component for calculating the absolute three-dimensional displacement of each measuring point by stepwise superposition based on the relative horizontal and relative vertical displacements, and obtaining the actual displacement of the arch dam according to the absolute three-dimensional displacement of each measuring point. Thus, the present application solves the problems in the related art such as the need to build an observation room to protect the instrument, high implementation cost, and poor adaptability to the terrain on both sides of the dam.

The present invention provides a method for diagnosing the spatial stability of underwater structures based on three-dimensional through-scanning. The method comprises: S11, performing a bidirectional scan of the underwater structure to extract point cloud data; S12, generating a three-dimensional structure model based on the point cloud data to obtain the buried depth of the underwater structure; S13, obtaining the lateral settlement difference based on the buried depth of the underwater structure, and calculating the inclination angle between the horizontal axis of the underwater structure and the horizontal plane; S14, obtaining the longitudinal elevation deviation based on the buried depth of the underwater structure, and calculating the angle between the longitudinal axis of the underwater structure and the horizontal plane; S15, setting the intersection point of the horizontal and vertical tangents along the direction of the underwater structure as A, finding an arbitrary point on the horizontal tangent as B, and finding an arbitrary point on the vertical tangent as C, and given the coordinates of the three points, calculating the angle at point A; S16, comparing the angle at point A with a preset threshold to determine the stability of the underwater structure. The stability diagnosis method provided by the present invention improves the safety and service life of underwater structures.

A system is provided.SOLUTION: A system comprising means for collecting position information (latitude, longitude, and altitude) every hour from a plurality of base stations installed all over the country, means for comparing the collected position information with previous position information and calculating horizontal and vertical displacement of the ground, means for inputting the calculated displacement data of the ground to a generative AI model and analyzing correlation with past earthquake data to predict an earthquake, means for notifying a self-governing body or a weather forecast service provider of a prediction result, and means for storing the prediction result in a database and archiving it in an analyzable form later.SELECTED DRAWING: Figure 1

This invention relates to the field of pattern recognition technology, specifically to a method and system for identifying the state of porcelain insulators. The method includes the following steps: collecting pixel features from the surface of the porcelain insulator, screening and establishing a bright coordinate sequence, extracting a set of stripe center points, linearly fitting the horizontal and vertical coordinates to generate an ideal projection reference, comparing the deviation span with the damage boundary, locating surface defects, and obtaining the identification result. In this invention, by screening pixel features according to a set boundary to establish a bright coordinate sequence, integrating the sequence to extract a set of stripe center point coordinates, performing linear fitting on the horizontal and vertical coordinates of the center points to generate an ideal stripe projection reference, comparing the deviation span of each coordinate from the reference, and filtering out two-dimensional row and column coordinates exceeding the judgment limit, the comparison mechanism of directly constructing an ideal projection reference from the bright feature structure of the porcelain insulator effectively avoids external background interference and the drawbacks of overall texture averaging, enhancing the sensitivity of porcelain insulator state identification and achieving accurate location of the actual distribution of surface defects.

Provided is a method of calculating high-resolution three-dimensional wind numerical information considering detailed topographic information, the method performing, when the wind numerical data of the operational LDAPS model is calculated (S100), a downscaling process based on the detailed topographic information using the wind numerical data as an input data, wherein the downscaling process performs a preprocessing process of converting a coordinate system and interpolating horizontal and vertical numerical data (S200), performs a process of adjusting roughness lengths (S300), correcting heights (S400), and correcting a subgrid-scale terrain drag effect (S500) on the basis of the detailed topographic information, and finally generating data that has gone through each of the processes as high-resolution wind numerical data (S600).

The invention discloses a bare soil extraction method based on a remote sensing two-dimensional spectral index, and the method comprises the steps: taking SAVI and NDRGI as horizontal and vertical coordinates to construct a two-dimensional index scatter diagram of each agricultural area, adjusting the size of a confidence ellipse of each land coverage category, namely a confidence region, enabling the confidence ellipse of an impervious surface and the confidence ellipse of cultivated land in a bare soil period to intersect, and enabling the confidence ellipse of the impervious surface and the confidence ellipse of cultivated land in a bare soil period to intersect; therefore, extraction thresholds of different agricultural areas can be obtained, bare soil distribution of the different agricultural areas can be accurately extracted, and bare soil distribution of research areas constructed by the different agricultural areas can be accurately extracted.

The present invention relates to the technical field of ship navigation operations, and provides a three-dimensional underwater motion trajectory interpolation method and system that takes into account the influence of ocean currents. The method includes calculating the turning rate based on the heading difference and time difference between two adjacent motion trajectory points to be interpolated, and calculating the heading of the interpolation point based on the turning rate; calculating the horizontal velocity and vertical velocity of the interpolation point based on acceleration; fusing ocean current information based on time to obtain the horizontal flow velocity, current direction, and vertical flow velocity of the interpolation point, inferring the forward and reverse horizontal position and forward and reverse vertical position of the interpolation point, and calculating the horizontal position and vertical position of the interpolation point; and completing the interpolation between two adjacent motion trajectory points based on the interpolation point time and the horizontal and vertical position of the interpolation point. The present invention accurately establishes the corresponding relationship between time and trajectory points, forming a motion trajectory with a uniform time series, and provides a reliable data foundation for subsequent applications such as trajectory fusion and playback.

The invention discloses a sugarcane lodging identification method, device and equipment based on mottle characteristics of a remote sensing image, and relates to the field of remote sensing image processing, and the method comprises the steps: collecting a multispectral remote sensing image in a research region; classifying pixels in the multispectral remote sensing image by adopting a pre-trained first machine learning model, and determining a sugarcane planting area in the multispectral remote sensing image; calculating canopy coverage according to the category of each pixel in the sugarcane planting area; performing section line analysis on the sugarcane planting area along the horizontal direction and the vertical direction respectively to determine mottle characteristics; the mottle characteristics comprise the maximum background wavelength in the horizontal direction, the maximum crest number in the vertical direction, the crest period variance in the vertical direction and the crest width variance in the vertical direction; and determining the lodging state of the sugarcane in the research area by adopting a pre-trained second machine learning model according to the canopy coverage and mottle characteristics. According to the invention, the identification efficiency and precision of the sugarcane lodging state are improved.

The present application relates to geotechnical engineering technical field, especially to a kind of active non-limit state under the calculation method of sliding surface of finite width soil body, comprising the following steps: step 1, determine the gradual development law of internal friction angle, cohesion, wall-soil external friction angle and wall-soil interface cohesion in finite soil body between rigid gravity retaining wall and existing bedrock with retaining wall displacement development, establish the mathematical representation of the strength parameters of finite soil body non-limit state with retaining wall displacement development;Step 2, establish the relationship between horizontal stress, interlayer shear stress and average vertical stress;Step 3, establish the balance equation of rectangular area and triangular area in horizontal and vertical directions;Step 4, solve the sliding surface inclination angle that meets the plastic upper limit theorem by numerical method;Step 5, calculate the horizontal active earth pressure resultant force, the overturning moment generated by horizontal active earth pressure on wall heel.The present application provides theoretical calculation basis for the design of retaining structure under the working condition of finite width soil body.

The present invention relates to the technical field of geological drilling and exploration, and discloses an exploration device for geological survey, comprising an electric push rod, which is hoisted and arranged above a trolley through a support module, and a conversion module is fixedly arranged on the support module. The conversion module is arranged in cooperation with a drilling module and a magnetic measurement module, and drives the drilling module and the magnetic measurement module to be alternately fastened to the output end of the electric push rod. The magnetic measurement module follows the trolley to move in ground magnetic measurement to find data anomalies, and a borehole is opened at the data anomaly point by the drilling module, and then the magnetic measurement module is switched to enter the borehole for vertical magnetic measurement. The magnetic measurement module is cooperated with a protective piece. The present invention realizes an exploration method that organically combines horizontal and vertical directions. By utilizing the function of the conversion module, the drilling work and the magnetic measurement work can be effectively combined to form a magnetic measurement method that first performs preliminary positioning and then accurately positions, effectively avoids blind drilling, reduces exploration costs, and significantly improves the overall efficiency of the magnetic measurement work.

The application discloses a beam structure damage probability identification method, comprising the following steps: (1) obtaining a damage frequency panorama; (2) marking the damage frequency on the damage frequency panorama to obtain damage frequency contour bands / contour lines, which represent all combinations of damage positions and degrees corresponding to the frequency; (3) projecting the contour bands / contour lines to an xOy plane to form an intersection area / intersection points, and the points in the intersection area or the intersection points are used to indicate the damage positions and degrees; (4) statistically processing the horizontal and vertical coordinates of the boundary vertices of the intersection area or the intersection points to obtain mathematical expectation values representing the damage positions and degrees; (5) calculating the variances of the damage positions and degrees; (6) calculating the probability density functions of the damage positions and degrees according to the central limit theorem; and (7) calculating the possible distribution areas of the damage positions and the probability sizes thereof and the possible intervals of the damage degrees and the probability sizes thereof according to the probability density functions.

This specification provides an AR information visualization annotation method and apparatus based on LBS and image recognition, comprising: responding to a user sending AR message information via a mobile phone, obtaining the latitude and longitude of the current AR message sending location through location-based services (LBS), and determining the latitude and longitude coordinates; establishing a three-dimensional coordinate system with the camera position as the origin, adjusting the camera to the direction of the AR message sending location, and determining the horizontal and vertical rotation angles between the current camera direction and the starting direction; obtaining the horizontal and vertical rotation angles, determining the endpoint coordinates of the message location using trigonometric functions, and generating AR message information at the endpoint coordinates. By combining virtual and real scenes, the accuracy of information annotation location is improved, and the operation is simple and recording is fast.

The present invention provides a multi-view global map stitching method based on a calibration plate. The method comprises: acquiring images with overlapping areas through three cameras in different directions and performing distortion correction; performing HSV interval conversion on the background of a specific rectangular calibration plate containing three different markers in the image, performing binarization and closing operation to obtain a mask, performing edge detection using the Canny operator to extract the calibration plate contour, and then performing quadrilateral fitting on the contour to obtain the coordinates of the four corner points of the calibration plate; calculating the first-order difference of the coordinates of each corner point based on the sum of the horizontal and vertical coordinates of the corner points, with the smallest sum being the upper left corner point and the largest sum being the lower right corner point, performing perspective transformation; identifying each corner point using the features of the calibration plate, matching the identified corner points accordingly, and dividing and stitching using a seam line to complete the stitching.

The invention is applied to the field of helicopter model development fault diagnosis, and relates to a helicopter rotor shaft and cross section bending moment time domain correlation atlas analysis method. The method comprises the following steps: extracting actual measurement data of rotor shaft bending moment measurement strain gauges on all cross sections under a specific working condition, and constructing a bending moment data matrix Mm of each cross section according to geometric arrangement of the rotor shaft bending moment measurement strain gauges; data at the same moment in two groups of measured data of different direction channels of the same cross section form measuring point abscissas and ordinates of a Cartesian coordinate system; drawing positions of all measuring points on a time domain in a Cartesian coordinate system to obtain a time domain correlation graph; obtaining a time domain correlation graph normal form of the correct measurement data of the rotor shaft bending moment of the helicopter with the same number of rotor support arms under the same working condition; and comparing the time domain correlation graph with the time domain correlation graph normal form, and judging whether the actually measured data have faults or not.

This invention provides a collaborative positioning method and system for lunar active beacons and ground-based distributed telescopes, relating to the field of astronomical observation technology. The method includes: acquiring first, second, and third information; performing wavefront phase separation based on the first information to obtain the wavefront distortion distribution field under the influence of atmospheric turbulence; performing multi-station interferometric coherence calculations based on the wavefront distortion distribution field to obtain a set of spatial interferometric response functions; reconstructing the optical path difference based on the spatial interferometric response function set, and obtaining the equivalent atmospheric optical path delay differential field by calculating the refractive index integral gradient of the wavefront propagation path; modeling the lunar coordinate system based on the third information to construct a spatial reference framework constrained by the lunar attitude; and performing lunar surface coordinate inversion based on the spatial reference framework, the equivalent atmospheric optical path delay differential field, and the second information to obtain the three-dimensional position of the beacon in the lunar body coordinate system. This invention achieves a simultaneous order-of-magnitude improvement in lunar surface positioning accuracy in both the horizontal and vertical directions.