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44results about How to "Improve Mapping Accuracy" patented technology
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Texture mapping method, device, equipment, medium and system
PendingCN119625149AImprove mapping accuracyImprove mapping efficiencyImage analysisGeometric image transformationGraph mappingComputer graphics (images)
The invention provides a texture mapping method, device, equipment, medium and system, and relates to the technical field of texture images. The method comprises the following steps: acquiring a plurality of poses of a first target spot on a scanner tracked by a tracking device, wherein the plurality of poses are tracking coordinates when the scanner collects multi-frame three-dimensional data; according to the plurality of poses, under a preset tracking coordinate system of the tracking equipment, splicing the plurality of frames of three-dimensional data to obtain a three-dimensional geometric model of the target object; obtaining a texture map of the target object collected by texture shooting equipment; performing pose calculation on the texture map based on a preset tracking coordinate system to obtain pose information of the texture map in the three-dimensional geometric model; and mapping the texture map to the three-dimensional geometric model according to the pose information of the texture map in the three-dimensional geometric model to obtain a texture three-dimensional model of the target object. Therefore, manual pre-punctuation is not needed, the texture mapping efficiency is improved, and the texture mapping precision is also improved through full-automatic pose calculation.
Owner:ZG TECH CO LTD
An AR-based video label dynamic superimposition anti-shake method and system
PendingCN122293995AImprove visual stabilityImprove Mapping AccuracyComputer graphics (images)Superimposition
This invention discloses a video tag dynamic overlay anti-shake method and system based on AR, comprising: acquiring real-time video stream and device pose parameters at corresponding timestamps; constructing a dynamic perspective projection model based on the device pose parameters and calculating the initial pixel coordinates of the target AR tag in the current video frame; planning a local feature search window based on the initial pixel coordinates; calculating the average pixel displacement vector of image feature points in the local feature search window of the current and adjacent historical video frames; performing reverse displacement compensation on the average pixel displacement vector to obtain the target rendering coordinates, and rendering the target AR tag to the current video frame based on the target rendering coordinates. Compared with the prior art, this invention can overcome the shortcomings of large drift errors caused by simply relying on mechanical pose, high computational power consumption caused by global matching, and high-frequency jitter of tags caused by slight device vibrations, thereby improving tag mapping accuracy, reducing system computational power consumption, and improving the visual stability of video overlay.
Owner:广西信安锐达科技有限公司
Unmanned ship mapping method, unmanned ship and computer readable storage medium
The application is suitable for the technical field of unmanned ship, and provides an unmanned ship mapping method, an unmanned ship and a computer readable storage medium, which comprises the following steps: in the process of unmanned ship sailing, a plurality of first position points in a target environment where the unmanned ship is located are acquired by a monocular vision device of the unmanned ship; for any one of the first position points, a bearing angle sequence of the unmanned ship relative to the first position point is acquired by the monocular vision device; positioning information of the first position point is calculated according to the bearing angle sequence; and a map of the target environment is generated according to the positioning information of each first position point in the target environment. Through the above method, the problem that the unmanned ship cannot accurately map due to limited load can be solved.
Owner:ZHUHAI YUNZHOU INTELLIGENCE TECH COMPANY
Vehicle signal field mapping method, electronic equipment and storage medium
PendingCN119646621AImprove efficiencyimprove accuracyDigital data information retrievalInternal combustion piston enginesField mappingSignal field
The invention provides a field mapping method for a vehicle signal, electronic equipment and a storage medium, and the method comprises the steps: obtaining a current vehicle signal of a to-be-mapped vehicle model, determining a signal type corresponding to the current vehicle signal, determining a target model in a plurality of field mapping models which are trained according to the signal type, and carrying out the mapping of the target model, the field information corresponding to the current vehicle signal is determined through the target model, signal field mapping based on the model is achieved, manual comparison of the vehicle signal matrix is not needed, the mapping efficiency and accuracy of the vehicle signal are greatly improved, and therefore the efficiency and accuracy of large-scale vehicle signal integration and analysis can be improved; according to the method, the field information is identified through the field mapping models corresponding to the signal types, the processing efficiency of the vehicle signals can be improved, the processing real-time performance of the vehicle signals is guaranteed, delay is reduced, the different signal characteristics of different signal types are considered, the field information is identified through the field mapping models corresponding to the signal types, and the field mapping precision can be further improved.
Owner:CHONGQING JINKANG NEW ENERGY VEHICLE CO LTD
A method of updating a robot map
The application discloses a robot map updating method, which comprises the following steps: step 1, a robot establishes a current map in a current environment; step 2, the current map is updated according to the angle relationship between the current map and a map stored in a historical map library last time, the updated current map is stored in the historical map library, and the updated current map is updated as the map stored in the historical map library last time, so that the current map established in step 1 is updated; wherein each frame of map stored in the same historical map library represents the current environment.
Owner:AMICRO SEMICONDUCTOR CO LTD
Construction management and BIM component intelligent association method based on semantic space analysis
PendingCN121979918AImprove association efficiencyThe process takes a short timeSemantic analysisOffice automationThree-dimensional spaceEngineering
The invention discloses a construction management and BIM component intelligent association method based on semantic space analysis. The method comprises the steps that original voice signals are collected and processed; converting the voice signal into text information; performing entity recognition on the text information, and extracting entities; extracting space coordinates and attribute information of the components, and constructing a three-dimensional space index; searching all components in the spatial position range by utilizing a three-dimensional space index, and filtering to obtain candidate components; sorting the candidate components based on the space coordinates and the component types of the candidate components, and generating a mapping relationship between relative sequence numbers and component identifiers; mapping the relative sequence number of the entity into a component identifier by utilizing the mapping relationship; calculating the matching degree of each candidate component in multiple dimensions and the total matching degree to obtain a target BIM component; the detection result and the target BIM component are stored in an associated mode, and the attribute or state of the corresponding component in the BIM model is updated. The information association efficiency and the matching accuracy can be improved.
Owner:CHINA CONSTR FOURTH ENG DIV CORP LTD
Electrolytic bath health state assessment method based on multi-dimensional characteristics of electrolyte
ActiveCN121959480ABreaking the blind spot in single indicator dimension determinationImprove mapping accuracyElectrolysis componentsBiological modelsElectrolytic agentAlgorithm
The invention relates to the technical field of neural network models, in particular to an electrolytic bath health state assessment method based on electrolyte multidimensional characteristics, which comprises the following steps: by calling a graph neural network to aggregate multiple parameter nodes, quantitatively exploring a hidden nonlinear cross correlation effect in multiple physical and chemical indexes to construct a multidimensional topological correlation architecture; the accuracy of multi-dimensional spatial feature mapping is improved by calling a long short-term memory network to superpose an internal department control tensor, comparing norm penalty numerical value separation exceeding extreme value parameters, avoiding the bottleneck of long sequence time sequence feature overlap operation calculation, and controlling a life prediction error root-mean-square extreme value to be within a predetermined security tolerance interval; according to the method, a candidate scalar is separated by splicing cross-dimensional parameter extraction dependency association, prediction and label difference aggregation coefficients are compared to generate an error gradient, the non-planned physical failure shutdown probability is controlled within a minimum tolerance interval, and the smoothness index of a whole life cycle prediction curve and the safety of an operation cycle are improved.
Owner:YONGZHOU XINCHENG MANGANESE CO LTD
A surveying device for geotechnical construction
ActiveCN117228016BImprove practicalityeasy to collectWithdrawing sample devicesWater resource assessmentStructural engineeringGeotechnical engineering
Owner:WUHAN SURVEYING GEOTECHN RES INST OF MCC
A multi-sensor-based bidirectional asynchronous construction method and system for a grid map
The application discloses a kind of based on multi-sensor's grid map two-way asynchronous construction method and system, the method includes: obtaining three-dimensional point cloud data, RGB image and depth map;Based on the space corresponding relation of RGB image and three-dimensional point cloud data, three-dimensional point cloud data is semantically labeled;Three-dimensional point cloud data, RGB image and depth map are timestamped alignment, coordinate transformation and filtering processing, obtain final point cloud data, with semantic point cloud data point cloud data is spatiotemporal alignment generation fusion point cloud data as semantic grid map input;Construct semantic grid map, adopt the two division strategies of front view map and rear view map, by independent thread asynchronous update;Establish motion object database and predict dynamic object motion trajectory based on time sequence prediction algorithm, update in semantic grid map synchronously.The application effectively guarantees the intelligent device obstacle avoidance success rate and path planning rationality, guarantee the operation safety and efficiency under complex environment.
Owner:CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP CO LTD +1
Data integration method and device based on geographic space information
PendingCN119646112Alower requirementReduce learning costsDatabase management systemsGeographical information databasesData fileTerm memory
The invention relates to a data integration method and device based on geographic space information. The method comprises the following steps: selecting a to-be-analyzed file, and configuring a geographic space data integration source end and a target end; obtaining metadata of the geographic space data file; performing conversion according to the obtained metadata to obtain a target end field and assembling a table building statement; creating a spatial index of the target end according to the obtained metadata; and segmenting according to the number of geographic space data files, segmenting a corresponding number of subtasks by a manage management node, and concurrently executing file analysis, SQL assembly and data writing operation. According to the method, the geographic space data file is analyzed through the program to obtain the metadata information, the analysis process of files in different formats is unified, the technical background requirement and the learning cost of operators are reduced, the data integration efficiency is improved, and the complexity and the time cost of geographic space data integration are reduced. According to the method, the memory overflow risk is reduced by adopting a block reading mode, and the stability of metadata analysis is improved.
Owner:CHINA ELECTRONICS CLOUD DIGITAL INTELLIGENCE TECH CO LTD
Irregularly shaped folding triaxial drone frame and drone device
This utility model discloses an irregularly shaped foldable three-axis drone frame and drone device, comprising: an assembly frame structure; a front rotor assembly structure, comprising two sets, the two sets of front rotor assembly structures being respectively and positionably interchangeably mounted on the front two sides of the assembly frame structure, and the rotation directions of the driving rotation ends of the two sets of front rotor assembly structures being opposite to each other; and a rear rotor assembly structure, comprising a single set, extending to the rear of the assembly frame structure, the rear rotor assembly structure having two sets of coaxially arranged driving rotation ends, the two sets of driving rotation ends being opposite to each other. This solves the technical problem in the prior art where drone frames struggle to simultaneously achieve portability and field of view advantages.
Owner:SHENZHEN XIANGNONG INNOVATION TECH CO LTD
Artificial Intelligence Control Method and System for Retractable Roof Greenhouses for Peach Tree Cultivation
ActiveCN121455268BImprove mapping accuracyGuaranteed feasibilityClimate change adaptationAdaptive controlGreenhouseAgricultural engineering
This invention relates to an artificial intelligence-based control method and system for retractable roof greenhouses used in peach tree cultivation, specifically as follows: First, an IoT sensor network is deployed to collect greenhouse environmental data and label growth stages, defining optimization tasks and action spaces. After aligning multi-source data using a dynamic time warping algorithm, environmental features and agricultural operations are fused using tensor decomposition technology. Constraint-aware convolution is used to embed environmental constraints and extract features, combining photosynthetically active radiation utilization rate and sensitivity indicators to obtain a growth efficiency feature vector. A strategy network is constructed through stage-adaptive exploration, bi-branch value function calculation, constraint-enhanced action selection, and deterministic strategy gradient optimization, ultimately outputting control commands to drive the greenhouse equipment. This method can accurately quantify the impact of environmental factors, improve the safety and effectiveness of control, and adapt to the growth needs of peach trees.
Owner:SHANDONG FEICHENG MODERN FRUIT CO LTD
Camera calibration method and device, electronic device, and storage medium
This application discloses a camera calibration method, apparatus, electronic device, and storage medium. The method includes acquiring multiple corresponding point pairs between 2D points in an image captured by a roadside camera and 3D points in a real roadside scene to obtain a first calibration parameter. The 3D points include coordinate position points in a world coordinate system, and the 2D points include coordinate position points in a pixel coordinate system corresponding to the 3D points. The first calibration parameter is iterated according to a preset optimization function to obtain a second calibration parameter. The mapping relationship table between the 2D points and 3D points is determined according to the second calibration parameter. This application improves the 2D-3D positioning accuracy of the roadside camera by optimizing and iteratively calculating the extrinsic parameter matrix.
Owner:ZHIDAO NETWORK TECH (BEIJING) CO LTD
A method for image enhancement processing of UAV remote sensing mapping
The invention discloses an image enhancement processing method for remote sensing and mapping of unmanned aerial vehicles, and relates to the technical field of image enhancement processing. During the operation of the system, the flight attitude and position information are recorded by GNSS and IMU equipment, the flight path of the unmanned aerial vehicle is controlled, and the collected original image is preliminarily processed to calculate and obtain: flight stability coefficient Fs, image acquisition quality coefficient Iq and terrain feature retention coefficient Tf, and the non-local mean NLM algorithm is used to remove random noise in the remote sensing image, optimize the edge area, and use the Laplace pyramid algorithm to improve the edge clarity and texture details of the terrain image, strengthen the mountain and hilly landform features, correct the color distortion caused by the complex lighting conditions in the mountains, make the image color truly restore the terrain features, avoid the loss of important landform information due to excessive brightness or darkness, optimize the terrain feature extraction, and generate the final index Z final ,Quality assessment of enhanced and rectified images.
Owner:SURVEYING & MAPPING INST OF LINYI MUNICIPAL BUREAU OF LAND & RESOURCES
Target sphere for 3D laser scanner and total station and coordinate conversion method
The present application provides a target ball and coordinate conversion method for a three-dimensional laser scanner and a total station, including: a surveying prism, a hemisphere, a bracket, an adjustment mechanism, and a horizontal detection mechanism, wherein the adjustment mechanism is arranged on the bracket; the hemisphere is arranged in the adjustment mechanism, the surveying prism is arranged at the center of the hemisphere, and the adjustment center of the adjustment mechanism coincides with the center of the hemisphere, the prism center of the prism coincides with the center of the sphere, and the rotation axis of the hemisphere and the two rotation axes of the adjustment mechanism are perpendicular to each other, and are used to perform rotation adjustment of the surveying prism in three axes while keeping the center of the prism unchanged; the horizontal detection mechanism is arranged on the bracket, and is used to detect whether the bracket is horizontal. In this way, the center of the target ball and the center of the prism are physically in the same physical position, which simplifies the measurement process, avoids factors such as excessive scanning angle, unstable fixing method, unclear center of the target, etc., thereby reducing the generation of errors and improving the surveying accuracy.
Owner:SUZHOU UNIV OF SCI & TECH
An engineering surveying and mapping data intelligent acquisition, analysis and processing system and method
ActiveCN120298791BRealize intelligent collectionHigh precisionCharacter and pattern recognitionResourcesCollection analysisData acquisition
The present application relates to the field of engineering surveying and mapping technology, in particular to an engineering surveying and mapping data intelligent acquisition, analysis and processing system and method, mainly applied to data acquisition, analysis and processing in the process of engineering construction; the system covers image acquisition, data classification, database storage, data processing, data analysis and decision feedback modules; the image acquisition module obtains an engineering surveying and mapping image feature set, the data classification module receives and classifies and stores the data; the database stores the classified data, the data processing module divides and calculates the importance of the image feature nodes; the data analysis module identifies abnormal data, and the decision and data feedback module receives the identification result and adjusts the data threshold; the system significantly improves the surveying and mapping precision through feature node processing and importance calculation; at the same time, the multi-level comparison mechanism improves the accuracy of abnormal detection, and provides efficient and accurate data support for engineering construction.
Owner:ZHUHAI ELECTRIC POWER ENG SUPERVISION CO LTD
An urban topographic mapping method based on image analysis
The present application relates to the technical field of image processing, and more particularly to a city terrain mapping method based on image analysis, comprising: a UAV collects terrain images and point cloud data, the terrain images are subjected to radiation correction, geometric correction and feature extraction to obtain multi-dimensional terrain features, the point cloud data is subjected to cleaning, denoising and standardization to serve as standardized point cloud data; a three-dimensional network framework is constructed by combining the two and TIN, image texture is optimized to a city terrain three-dimensional model, and terrain mapping is completed accordingly; the mapping accuracy is determined by the accuracy rate of multi-dimensional terrain feature extraction, if it is not up to standard, it is determined whether to increase the ground point classification height threshold; if it is not necessary to increase, the image acquisition integrity is determined by the building shadow coverage rate of the terrain images, if it is not up to standard, it is determined whether to increase the terrain feature texture roughness coefficient; if it is not necessary to increase, the TIN modeling triangular net edge number correlation redundancy rate is determined based on the image frame loss rate. The present application improves the mapping accuracy of city terrain.
Owner:BEIJING DADI HONGTU SURVEY TECH CO LTD
Protective box staff for surveying and mapping
ActiveCN224108811UGuarantee the stability of useadjustable positionHeight/levelling measurementStands/trestlesTowerRubber mat
The utility model relates to the technical field of geographical surveying and mapping, in particular to a protective box staff for surveying and mapping, which comprises a staff rod, a rubber sleeve is slidably connected to the outer side of a bottom tube of the staff rod, a threaded sleeve is sleeved on the outer side of the rubber sleeve, a pre-tightening sleeve is in threaded connection with the outer side of the threaded sleeve, and a top ring is integrated at the top of the pre-tightening sleeve. Wedge-shaped rubber blocks are integrated at the top of the rubber sleeve at equal intervals, a rotating frame is fixedly connected to the bottom of the threaded sleeve, supporting legs are rotatably connected to the outer side of the rotating frame at equal intervals, the supporting legs are arc-shaped blocks, the radian of the supporting legs is 120 degrees, and rubber pads are integrated on the inner arc surfaces of the supporting legs. The utility model aims to provide the protective box staff for surveying and mapping, so as to solve the problems that most of the existing box staff adopts a simple multi-stage telescopic tube design with a built-in spring buckle, is not externally provided with a protective mechanism, and is easily influenced by carrying, so that the scale is abraded or the outer tube is deformed and the stretching is blocked. And the surveying and mapping precision is influenced by inclination during surveying and mapping.
Owner:汪山林
Adjustable container gas collecting pipeline welding tool
ActiveCN224209369Uimprove product qualityImprove mapping accuracyWelding/cutting auxillary devicesAuxillary welding devicesProcess engineeringMaterial resources
The utility model discloses an adjustable welding tool for a gas collecting pipeline of a container. The adjustable welding tool solves the problems that in the prior art, the pipeline welding quality is poor, and the installation efficiency is low. According to the technical scheme, the adjustable welding tool for the gas collecting pipeline of the container comprises a limiting plate frame and a tool valve; the limiting plate frame comprises a supporting frame and a limiting plate, the limiting plate is fixed to the supporting frame, a main valve positioning hole and a plurality of valve positioning holes arranged in rows and columns are formed in the limiting plate, and the tool valves are adjustably installed in the valve positioning holes. The tool valve is adjusted in real time by surveying and mapping different container gas collecting pipes in the early stage, and the welding and mounting quality and efficiency in the later stage are improved; the welding tool for the container gas collecting pipeline can realize continuous maintenance of the container, reduces manpower transfer and material resource consumption, improves the production quality of the pipeline, and improves the overall installation efficiency.
Owner:HENAN AEROSPACE HYDRAULIC & PNEUMATIC TECH
Surveying and mapping precision visualization regulation and control system based on remote sensing surveying and mapping terminal
InactiveCN119618267AGuaranteed stabilityDecreased mapping accuracyMeasurement devicesControl systemRemote sensing
The invention discloses a surveying and mapping precision visualization regulation and control system based on a remote sensing surveying and mapping terminal, relates to the technical field of surveying and mapping precision regulation and control, and solves the technical problem that in the prior art, real-time accuracy analysis cannot be carried out on synchronous ring surveying and mapping and asynchronous ring surveying and mapping. Transverse overlapping synchronization information and vertical overlapping synchronization information are collected, whether deviation exists in synchronous ring surveying and mapping or not is deduced according to information analysis, and surveying and mapping regulation and control are carried out; and the asynchronous ring detection unit is used for detecting asynchronous ring surveying and mapping, collecting asynchronous single frame loss data and asynchronous multiple deviation data, inferring that deviation exists in surveying and mapping of a mobile main body of the asynchronous ring surveying and mapping, and performing surveying and mapping regulation and control.
Owner:SHANDONG URBAN CONSTR VOCATIONAL COLLEGE +1
A measuring device for land area surveying and mapping and a method of using the same
The present invention relates to the field of land area surveying and mapping, and specifically to a measuring device and a method for using land area surveying and mapping. It includes a frame, a timing module and a central controller; the frame is provided with a front wheel assembly, a rear wheel assembly, a power device, a gyroscope and a battery, the rear wheel assembly includes a rear wheel, the output end of the power device is connected to the rear wheel transmission, and the battery is electrically connected to the power device and the gyroscope; the timing module times the total driving time of the rear wheel, and generates a timing signal every preset unit time; the central controller is connected to the power device control, and is connected to the gyroscope and the timing module for communication, receives the inclination angle data of the frame relative to the horizontal plane detected by the gyroscope, receives the timing signal generated by the timing module and the statistical total driving time data of the rear wheel, and calculates the total horizontal movement distance of the rear wheel when it is straight. The present invention can improve the surveying and mapping accuracy by calculating the horizontal distance during movement in segments and summarizing them.
Owner:ZIBO TIANHE MAPPING ENG CO LTD
Combined vernier length measuring structure
ActiveCN224202347UHigh measurement accuracyHighlighted integrabilitySlide gaugesMechanical measuring arrangementsStraightedgeVernier scale
The utility model discloses a combined vernier length measuring structure which comprises a plate-shaped first structural body and a plate-shaped second structural body, wherein the edges of the first structural body and the second structural body are attached. The first structural body comprises at least four straight edges which are connected end to end, the first structural body is provided with at least one concave angle, and a length scale mark is arranged on one straight edge in the horizontal direction of the concave angle; the second structural body comprises at least three straight edges which are connected end to end, the second structural body is provided with at least one convex corner, vernier scale marks are arranged on one straight edge in the horizontal direction of the convex corner, and the concave corner and the convex corner are both right angles; the ruler has the advantages that the principle of a vernier caliper is adopted, the first structural body and the second structural body are used in cooperation, and compared with an existing ruler, the ruler can effectively improve the length measuring precision.
Owner:INNER MONGOLIA ESSAY STATIONERY CO LTD
An active mapping method based on optical flow residual prediction and semantic entropy driving
PendingCN122530507AAvoid misjudgment as staticreduce afterimage
The application belongs to the technical field of mapping, and relates to an active mapping method based on optical flow residual prediction and semantic entropy driving, which quantifies the semantic ambiguity degree based on semantic entropy, realizes collaborative mapping by predicting dynamic interference trajectories through optical flow residuals, sequentially executes uncertainty prediction, tracking, mapping, trajectory prediction and path planning stages, fuses semantics and geometric features to generate a weighted semantic perception uncertainty map, suppresses dynamic interference through dense bundle adjustment, constructs a semantic consistency loss to optimize static area reconstruction, predicts dynamic trajectories based on RAFT optical flow and Kalman filter and generates a no-fly zone, and completes path planning through a global-local collaborative architecture and a multi-target cost function; the application improves the dynamic scene mapping and background area mapping accuracy, realizes early avoidance of dynamic obstacles, takes into account obstacle avoidance safety and mapping optimization requirements, and provides observation data support for a SLAM system.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
Image processing method, device and storage medium based on open vocabulary
ActiveCN119251408Breduce ghostingImprove mapping accuracySemantic analysisInference methodsLinguistic modelImaging processing
The present application discloses an image processing method, device and storage medium based on open vocabulary, which relates to the technical field of three-dimensional mapping. The method includes: based on the current frame collected by the robot, obtaining the instance area and instance name corresponding to each first instance object, and inputting them into the large language model to obtain the position relationship description text and object attribute description text of the first instance object; obtaining the local point cloud map and the global point cloud map of the current frame; searching for the first target instance object matching any first instance object in the global point cloud map to perform point cloud merging operation and text merging operation, and updating the global point cloud map; the point cloud merging operation is used to merge the point clouds of the instance objects; the text merging operation is used to merge the position relationship description text, object attribute description text and instance name of the instance objects respectively. In this way, the mapping accuracy can be improved, and the environment can be parsed into a semantically rich and structured three-dimensional scene map.
Owner:ZHONGKE YUNGU TECH
Laser radar data real-time transmission system and method and storage medium
PendingCN119575402Aavoid detection biasImprove Mapping AccuracyElectromagnetic wave reradiationRadarData acquisition
The invention discloses a laser radar data real-time transmission system and method and a storage medium, relates to the technical field of radar data transmission, and solves the technical problems that in the prior art, light wave parameter setting of a laser radar cannot be reasonably performed during laser detection, and a light wave surveying and mapping period cannot be planned according to an actual target area. Specifically, a laser radar transmits light waves and recycles light waves to plot a target area, the plotted area is determined and set as the target area, laser emission is carried out on the target area through the laser radar, and the space environment of the target area is plotted through detection of the transmitted light waves. Target area data acquisition is carried out after the emission and recovery period is completed, and data acquisition is carried out on a target area after the emission and recovery period of the laser radar is determined.
Owner:ZHONGEN OPTOELECTRONIC TECH (SUZHOU) CO LTD
An unmanned aerial vehicle aerial surveying and mapping device
The utility model discloses an unmanned plane aerial surveying and mapping device relates to unmanned plane technical field, the utility model discloses an unmanned plane body, the unmanned plane body bottom is provided with surveying and mapping camera, the unmanned plane body bottom is provided with automatic leveling mechanism, and the automatic leveling mechanism includes the installation shell of setting in the unmanned plane body bottom, the rotating stand of fixed connection in the installation shell top, and the counterweight of fixed connection in the installation shell one side. The utility model discloses through the cooperation of automatic leveling mechanism and counterweight, can dynamic adjustment surveying and mapping camera's horizontal state in the unmanned plane flight process, ensures that the picture always is perpendicular to the ground, effectively reduces image tilt and distortion, significantly improves surveying and mapping precision, and the airbag, catheter and check valve design in the stop gear, can buffer swing in the leveling process, prevent the shaking caused by gas backflow, further enhance the stability of camera in dynamic adjustment.
Owner:唐晓伟 +1
A method, device, equipment and storage medium for updating high-precision maps
ActiveCN115235448Breduce transmissionIncrease transfer rateNavigation instrumentsFeature vectorAlgorithm
The present application relates to a method, device, equipment and storage medium for updating a high-precision map, the method comprising obtaining a first high-precision map and a second high-precision map; parameterizing the first high-precision map and the second high-precision map to obtain each parameterized map cube; calculating the center value and covariance matrix of each map cube to obtain the eigenvalues of the eigenvector of the covariance matrix, wherein there are at least three eigenvalues; sorting the eigenvalues in order of size, and adjusting the order of the eigenvectors of the covariance matrix of each map cube in the sorted order; judging whether the first high-precision map needs to be updated based on the eigenvalues or eigenvectors; if the judgment result meets the preset conditions, replacing the first high-precision map with the second high-precision map. The present application has the effect of updating the map as the scene changes.
Owner:GUANGZHOU WERIDE TECH LTD CO
A high-precision surveying device
This utility model relates to the field of surveying instrument technology and discloses a high-precision surveying device, including a tripod and a measuring rod. A sleeve is fixedly provided at the middle of the top of the tripod, and a telescopic column is slidably connected to the sleeve. A limiting component for limiting the telescopic column is provided at the top of the sleeve, and a reinforcing component for reinforcing the tripod is provided at the bottom of the sleeve. An mounting plate is installed on the top of the telescopic column, and a damping universal joint is fixedly installed on one side of the mounting plate. The measuring rod can be supported by a mounting bracket. By engaging the mounting bracket with the mounting block, the measuring rod can be quickly installed and disassembled. After installation, the angle of the measuring rod can be freely adjusted by the damping universal joint. It can be quickly leveled with the help of a spirit level. The operation is simple, and it can prevent the measuring rod from tilting slightly along the slope of the ground when the ground is uneven, thus improving the surveying accuracy.
Owner:TIANJIN MAIPU SURVEYING & MAPPING CO LTD
Farmland unmanned aerial vehicle aerial surveying and mapping machine and surveying and mapping method thereof
PendingCN119611825AGuaranteed shooting accuracyGuaranteed cleaning effectCleaning using toolsCleaning using liquidsUncrewed vehicleEngineering
The invention relates to a farmland unmanned aerial vehicle aerial surveying and mapping machine and a surveying and mapping method thereof, and relates to the technical field of data surveying and mapping, four hollow pipes are further installed on the lower surface of an unmanned aerial vehicle frame, the hollow pipes are arranged in the axial direction of a first supporting rod, and liquid beads are arranged in the hollow pipes; the middle of the hollow pipe is connected with a circuit, and the four liquid beads are located in the middle of the hollow pipe respectively, so that the circuit can be conducted; the four liquid beads are located at the two ends of the hollow tube, a circuit is disconnected, and the circuit controls the main lens and the secondary lens to shoot; the shooting angle and stability of the main lens and the secondary lens in the flight process are strictly ensured; the camera in the main lens faces the opposite direction of the camera in the secondary lens, the two opposite side faces of a three-dimensional image are shot respectively, the three-dimensional image is imported into a computer for mapping, a three-dimensional surveying and mapping picture is formed, pictures of the main lens and the secondary lens are mutually verified, and surveying and mapping precision is further improved.
Owner:129 EXPLORATION TEAM GENERAL ADMINISTRATION OF CHINA COAL GEOLOGY
Method of making a multi-material composite seal based on additive manufacturing
ActiveCN121525479BImprove mapping accuracyaccurate mappingCAD customisation/personalisationChemical property predictionDynamical optimizationRandom forest
The application discloses a multi-material composite seal preparation method based on additive manufacturing, and relates to the technical field of seal manufacturing. A seal component parameter database based on a seal application scenario is set, and a seal application scenario keyword in the seal component parameter database is mapped to quantitative parameters of each seal component. Based on actual production requirements of the seal, a target application scenario keyword is input to the database, and the database automatically outputs the quantitative parameters of each component of the corresponding seal through fuzzy matching and priority sorting. The application realizes accurate mapping of working condition requirements and component quantitative parameters by constructing a seal component parameter database based on an application scenario, avoids experience dependence in parameter setting in a traditional process, and ensures that the performance of each component is highly matched with an actual working condition. A dynamic optimization mechanism of the database combines a random forest machine learning algorithm, can continuously incorporate new scene data, improve parameter mapping accuracy, and enhance the adaptability of the method to diversified working conditions.
Owner:HEBEI SHIXIANG SEALING ELEMENT CO LTD