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28results about How to "Improve mapping accuracy" patented technology
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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
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
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
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
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
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 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
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
Line construction section high-precision mapping method and system based on AI vision technology
The application relates to a high-precision surveying and mapping method and system for a line construction section based on AI vision technology, which comprises the following steps: acquiring image data and point cloud data of the line construction section; inputting the image data and the point cloud data into a segmentation module to generate a semantic segmentation graph, and obtaining terrain point cloud data and terrain image data; inputting the terrain point cloud data into a terrain analysis module, and calculating a terrain complexity coefficient by the terrain analysis module; determining a surveying and mapping span value according to the terrain complexity coefficient; analyzing the terrain edge density of the terrain image data, and if the terrain edge density is greater than a preset threshold value, adjusting the surveying and mapping span value to a smaller value to obtain an adjusted surveying and mapping span value; and collecting data by using the adjusted surveying and mapping span value to generate a surveying and mapping data model of the line construction section.
Owner:NANJING YINGAN INTELLIGENT TECH RES INST CO LTD
A Kriging-driven system and method for updating bridge digital twin modeling
This invention belongs to the field of digital twin technology, specifically providing a bridge digital twin modeling and updating system and method driven by cluster learning and Kriging. The system includes: a data acquisition and processing module for obtaining performance characteristic information of the actual bridge structure; a digital twin model construction module for constructing a bridge digital twin model and processing the performance characteristic information of the simulated bridge structure; an objective function construction module for constructing a residual objective function and obtaining optimization variables and their parameter space based on the residual objective function; an optimization module for guiding the Kriging surrogate model to search for optimal parameters in the parameter space using a cluster optimization mechanism driven by multiple learning functions in parallel; and a model update module for updating the bridge digital twin model using the optimal parameters. This invention effectively improves the accuracy of bridge structure state identification and reduces model update costs, making it suitable for bridge performance prediction and operation and maintenance management under complex working conditions.
Owner:TONGJI UNIV
A mapping catheter tip and method of making the same
ActiveCN116649981BSimplifies electrode installation processIncrease productivitySensorsDiagnostic recording/measuringHigh densityMembrane array
This invention discloses a mapping catheter tip and its preparation method. The mapping catheter tip includes a flexible film, electrodes, electrode wires, a support member, and a tube body. The flexible film includes a surface film and a base film. The electrodes are arrayed on the base film, and each electrode is individually connected to an electrode wire. One end of the electrode wire is integrated into the flexible film, and the other end extends into the tube body. The surface film has a perforated structure, with the electrodes exposed from the perforations. The support member includes at least one support arm, at least one side of which is bonded to the flexible film. The proximal ends of the support arms converge and are bonded to a joint portion of the support member, which is then fixed within the tube body. Integrating the electrode and electrode wire components into the flexible film simplifies the electrode installation process for high-density mapping catheters with multiple electrodes, improving production efficiency. This invention distributes the electrodes within the flexible film, thus making the design independent of the support member. The support member can adopt various forms.
Owner:SICHUAN JINJIANG ELECTRONICS SCI & TECH CO LTD
A method and system for unmanned aerial vehicle surveying for geographic information collection
ActiveCN120991812BFull Coverage GuaranteedEnsure flight altitudeNavigational calculation instrumentsSurveying instrumentsUncrewed vehicleElevation data
The application provides a kind of unmanned aerial vehicle surveying and mapping method and system for geographic information collection, belong to surveying and mapping technical field, this method includes: based on the first digital elevation data of target area determines first route;Target area includes multiple target sub-regions;Multiple times execute the route adjustment operation of unmanned aerial vehicle, until to the end point of first route, to realize the geographic information surveying and mapping of target area.The unmanned aerial vehicle surveying and mapping method and system for geographic information collection provided in the application can improve the surveying and mapping accuracy of unmanned aerial vehicle.
Owner:HEBEI YIZHI INFORMATION TECHNOLOGY CO LTD
Energy industry data intelligent treatment system and method based on AI Agent and MCP
PendingCN121958244Aensure safetyReduce labor costsDatabase updatingSemantic analysisData sourceData treatment
The invention discloses an energy industry data intelligent treatment system and method based on AI Agent and MCP, and relates to the technical field of industrial data treatment and artificial intelligence, and the system specifically comprises an AI agent module, a plurality of MCP service modules and a data storage module. Through AI driving, a traditional data governance period taking a month as a unit is shortened to a week or even day level, the labor cost is greatly reduced, high-efficiency and automatic processing is realized, an AI Agent is isolated from a data source through an MCP protocol, a sensitive voucher only exists at an MCP Server end, the data security risk is effectively managed and controlled, high data security is ensured, and the method is suitable for large-scale popularization and application. The decoupling architecture allows the system function to be seamlessly expanded by developing a new MCP Server in the future, core Agent codes do not need to be modified, high expansibility is achieved, and practical application is easy to carry out.
Owner:HANGZHOU MOSI INTELLIGENT TECHNOLOGY CO LTD
An industrial internet production line dynamic optimization control method based on digital twinning
PendingCN122239602ASolve the problem of being overwhelmedImprove Mapping AccuracyProgramme total factory control
This invention relates to the field of industrial internet technology and discloses a dynamic optimization control method for industrial internet production lines based on digital twins. The method includes the following steps: S1, constructing a synchronous mapping twin to generate a digital twin mapped to the physical production line; S2, building a dynamic optimization model to construct a control model integrating deep reinforcement learning and adaptive fuzzy logic; S3, embedding predictive maintenance feedback; S4, performing virtual-real interaction verification; and S5, constructing a twin interaction platform. This invention, through an improved attention mechanism deep learning model in S1, introduces dynamic allocation of data fusion weights to control strategy influence factors, enhancing the accuracy of key data feature extraction. After feature mapping and weighted fusion of multi-source heterogeneous data, the resulting global feature tensor accurately reflects the core state of the production line, solving the problem of key information being submerged in traditional data fusion, providing high-quality data support for subsequent optimization control, and improving the mapping accuracy between the digital twin and the physical production line.
Owner:SICHUAN YEXIN ENERGY INVESTMENT IND INTERNET CO LTD
A method for quantitatively detecting conductivity of solid conductive medium by inductive magneto-thermo-acoustic effect
This invention discloses a quantitative detection method for the conductivity of solid conductive media using inductive magneto-thermo-acoustic methods, belonging to the field of non-destructive testing technology. It establishes a quantitative mapping relationship between ultrasonic measurement signals and conductivity distribution by deeply analyzing the multi-field coupling relationship of solid conductive media under pulsed electromagnetic excitation; constructs a mathematical model of magneto-acoustic-thermo-acoustic multi-field coupling under solid constraint conditions to accurately solve the forward problem of electromagnetic and acoustic fields; optimizes the excitation and receiving system parameters to improve detection resolution and signal-to-noise ratio; reconstructs the sound source term using a time-inversion method-compressed sensing joint algorithm, and achieves quantitative conductivity inversion using a least-squares iterative algorithm based on Lorentz force divergence-thermal function; quantifies and calibrates the inversion results to ensure detection accuracy; reconstructs the conductivity distribution using imaging technology to identify abnormal regions; and finally generates a standardized detection report.
Owner:LANZHOU JIAOTONG UNIV
De-dynamic point method for autonomous mobile platforms and systems and devices therefor
ActiveCN115272730BEliminate the effects of registrationImprove mapping accuracyImage enhancementImage analysisPoint cloudTimestamp
A dynamic point removal method for an autonomous mobile platform, and a system and device thereof. The dynamic point removal method for an autonomous mobile platform comprises the steps of: obtaining image information and point cloud information collected simultaneously at a current frame timestamp and a previous frame timestamp via a camera and a radar respectively configured on the autonomous mobile platform, to obtain current frame image data, previous frame image data and current frame point cloud data correspondingly; performing feature point processing on the current frame image data and the previous frame image data according to a relative pose relationship of the autonomous mobile platform between the current frame timestamp and the previous frame timestamp, to determine a dynamic region in the current frame image data; projecting the current frame point cloud data to an image plane of the camera, to take point clouds projected into the dynamic region as potential dynamic points; and removing the potential dynamic points in a point cloud cluster close to the camera by performing clustering processing on the potential dynamic points.
Owner:SUNNY OPTICAL ZHEJIANG RES INST CO LTD
Displacement sensor processing method and device, storage medium and electronic equipment
PendingCN121977420AGuaranteed accuracyGuaranteed reliabilityUsing electrical meansStands/trestlesArea networkControl engineering
The invention discloses a processing method and device of a displacement sensor, a storage medium and electronic equipment, an AMT gear shifting execution mechanism is hoisted to calibration equipment, the calibration equipment comprises a high-precision positioning mechanism, a displacement sliding table, a displacement ruler and a driving mechanism, the driving mechanism is used for driving the displacement sliding table to move along a preset track, and the displacement sliding table moves along the preset track; the method comprises the steps that a displacement sliding table is driven by a driving mechanism to move, a target shaft in an AMT gear shifting execution mechanism is linked to move within the measuring range of the target shaft, and the displacement measurement value of a displacement ruler and the voltage value of a displacement sensor of the AMT gear shifting execution mechanism at each displacement point are obtained; the relative position between the magnetic core on the target shaft and the displacement sensor is changed; based on the displacement measurement value and the voltage value corresponding to the displacement measurement value, a calibration curve is established by adopting a polynomial fitting algorithm, and the calibration curve comprises a mapping relation between the displacement measurement value and the voltage value; and the calibration curve is written into the displacement sensor through controller area network (CAN) communication.
Owner:CHANGZHOU ECTEK AUTOMOTIVE ELECTRONICS LTD
Real estate surveying and mapping device based on surveying and mapping geographic information service
PendingCN121897840ARealize complex usage requirementsAutomated precise adjustmentSurveying instrumentsStands/trestlesData miningLandform
The invention provides a real estate surveying and mapping device based on surveying and mapping geographic information service, which comprises a bottom frame, universal wheels for moving are arranged at the bottom of the bottom frame, a telescopic mechanism is arranged on one side of the top of the bottom frame, a transversely arranged top frame is arranged at the top of the telescopic mechanism, and an angle adjusting mechanism is arranged at the top of the top frame. And a surveying and mapping component is arranged at the top of the angle adjusting mechanism. Compared with the prior art, the device has the following beneficial effects that the device can be rapidly transferred through the universal wheels at the bottom of the bottom frame, the anchoring ground mechanism is vertically inserted into the ground through the anchor columns and is transversely supported through the transverse insertion pieces, a vertical and transverse double-fixing structure is formed, the anti-overturning capacity is high, and the device is suitable for various terrains such as flat, soft and gradient terrains; the device deviation in the surveying and mapping process is effectively avoided.
Owner:SHANDONG KEHUI XINGTU GEOGRAPHIC INFORMATION CO LTD