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194 results about "Real Time Kinematic" patented technology
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Real-time kinematic (RTK) positioning is a satellite navigation technique used to enhance the precision of position data derived from satellite-based positioning systems (global navigation satellite systems, GNSS) such as GPS, GLONASS, Galileo, and BeiDou. It uses measurements of the phase of the signal's carrier wave in addition to the information content of the signal and relies on a single reference station or interpolated virtual station to provide real-time corrections, providing up to centimetre-level accuracy. With reference to GPS in particular, the system is commonly referred to as carrier-phase enhancement, or CPGPS. It has applications in land survey, hydrographic survey, and in unmanned aerial vehicle navigation.
Real-time motion planning system based on dynamic environment perception
PendingCN119146965APrecise Environment Awarenessaccurate distanceNavigational calculation instrumentsForecastingSimulationReal Time Kinematic
The invention provides a real-time motion planning system based on dynamic environment perception, and aims to solve the limitation of the prior art in a dynamic environment. According to the system, environment data are captured and processed in real time through a highly integrated sensor fusion technology, and an accurate environment model is generated. And in combination with a deep learning algorithm, the system can predict environment change and realize quick response. In addition, the system adopts an advanced dynamic path adjustment algorithm to ensure path optimization and safe navigation of the machine in a complex environment. Particularly, a multi-machine collaborative planning mechanism is introduced, and efficient collaboration and avoidance among machine groups are realized through a distributed consistency algorithm and multi-agent reinforcement learning. On the whole, the system obviously improves the application potential of the machine in a variable environment, enhances the adaptability and stability of the machine, and opens up a new possibility for the development of the intelligent machine equipment technology.
Owner:STATE GRID CORPORATION OF CHINA +2
Unmanned fire extinguishing robot navigation method and device based on 4D millimeter wave radar
ActiveCN119354205ANavigational calculation instrumentsNavigation by speed/acceleration measurementsOdometryPoint cloud
The invention provides an unmanned fire extinguishing robot navigation method and device based on a 4D millimeter wave radar, and solves the technical problem that in the prior art, effective data cannot be accurately captured for positioning navigation, so that fire cannot be accurately extinguished. The method comprises the following steps: acquiring an initial attitude angle, a local map and an optimal path of a robot, and navigating the robot according to the optimal path; the method comprises the following steps: acquiring feature point clouds, preprocessing the feature point clouds and a local map to obtain a preprocessed feature point cloud set and a preprocessed local map, performing point cloud matching based on a variant ICP algorithm to obtain pose change parameters, and superposing the pose change parameters with an initial attitude angle of a robot to form an incremental odometer. The preliminarily estimated real-time motion state of the robot is obtained and corrected to obtain the high-precision robot positioning and motion state, and the process is cycled until the robot reaches the fire source position, and then water spraying and fire extinguishing are conducted. The method can be widely applied to the technical field of robot navigation.
Owner:HARBIN INST OF TECH AT WEIHAI
Intelligent load prediction and adjustment method in dynamic weighing system
ActiveCN119935295AWeighing apparatus testing/calibrationNavigation instrumentsSensor arrayFrequency spectrum
The invention relates to the technical field of dynamic weighing, and discloses an intelligent load prediction and adjustment method in a dynamic weighing system, which comprises the following steps of: separating a weighing signal into a space domain static load characteristic (pressure point distribution sparsity and gravity center geometric vector) and a time domain dynamic inertial interference component (acceleration coupling noise) through space-time double-domain decoupling; the frequency spectrum aliasing problem of a traditional filtering algorithm is eliminated from a signal source; the future interference trend is predicted based on the real-time motion state of the carrier, a feed-forward compensation signal is generated through a pre-training dynamic basis function library, and dynamic errors are actively counteracted; in combination with sensor array space consistency detection and lightweight online learning, decoupling model parameters are dynamically corrected. According to the method, space geometric analysis and kinematics feedforward prediction are combined, a traditional signal processing framework is strided out, error source separation and real-time compensation are achieved, and the dynamic weighing precision of transient working conditions such as sudden stop and speed change is remarkably improved.
Owner:HUNAN HAIDEWEI TECH
Anti-unmanned aerial vehicle detection method and system
The invention relates to the technical field of unmanned aerial vehicle detection, in particular to an anti-unmanned aerial vehicle detection method and system, and the method comprises the following steps: scanning a target airspace in real time through broadband cognitive radio, and constructing an environment feature matrix; based on the environment feature matrix, double-flow feature extraction is carried out, and a protocol fingerprint vector is generated; activating a corresponding group behavior analysis model according to the protocol fingerprint vector, and constructing a behavior topological graph; constructing a dynamic threat vector by adopting a game theory in combination with the behavior topological graph and the real-time motion parameters; generating a multi-dimensional interference strategy set according to the dynamic threat vector; according to the invention, an omnibearing and real-time updated threat vector is constructed, a node threat value is calculated through a non-cooperative game model, accurate evaluation is carried out in combination with spatio-temporal information, potential threats are effectively identified, accurate interference on an unmanned aerial vehicle group is realized, the perception capability of unmanned aerial vehicle behaviors in a complex scene is enhanced, and the risk of the unmanned aerial vehicle behavior in the complex scene is reduced. And the execution precision and efficiency of the interference strategy are obviously improved.
Owner:QUANTUM LEAP (ZHANGJIAGANG) TECHNOLOGY CO LTD
Method and device for identifying unmanned aerial vehicle based on motion features of high-point camera holder
PendingCN119625633AImprove the ability to identify and resist interferenceimprove accuracyImage enhancementImage analysisReal Time KinematicUncrewed vehicle
Owner:CHINATOWER CO LTD HEBEI BRANCH
Multi-mode fusion time service method and system based on dynamic calibration of DCP equipment
The invention discloses a multi-mode fusion time service method and system based on dynamic calibration of DCP equipment. The method comprises the following steps: completing initial time reference data acquisition based on a multi-mode satellite signal; meanwhile, time data of a ground time service network are collected, and motion parameters of DCP equipment are monitored in real time through an inertial navigation unit; establishing a correlation model of the motion parameter and the time service error; quantitative analysis of error sources is completed based on the correlation model; fusing the multi-source time data; dynamically adjusting the fusion weight of each data source according to the real-time motion state of the DCP equipment; redundant time slots are automatically distributed to high-error equipment; outputting the calibrated time signal to DCP equipment through an interface to complete clock synchronization; and continuously monitoring the time deviation of the DCP equipment, and dynamically updating the calibration parameters to form closed-loop optimization. And the environmental adaptability and the precision stability of the timing system are improved.
Owner:BEIJING HUAYUN SHINETEK TECH CO LTD
Network RTK method for generating virtual reference station based on PPP SSR correction
The invention relates to the technical field of global satellite navigation systems, in particular to a network RTK (Real Time Kinematic) method for generating a virtual reference station based on a PPP (Point-to-Point Protocol) SSR (Simple Sequence Repeat) correction, which comprises the following steps of: calculating a moving station approximate coordinate of a target moving station; an observation value error of each target satellite is corrected through the target server by using the rough coordinate of the moving station and the PPP SSR information of the plurality of target satellites, and a position coordinate and an observation value of a virtual reference station are generated; on the basis of an RTCM protocol, the target server side encodes the position coordinates and the observation values to obtain OSR information corresponding to the position coordinates and the observation values, and broadcasts the OSR information to the target moving station; and based on the OSR information and a double-difference relative positioning strategy, enabling the target moving station to obtain relative position information between the target moving station and the virtual reference station so as to determine position coordinates of the target moving station. Therefore, the problems of slow convergence, limited coverage range, poor receiver compatibility and the like of the existing navigation positioning technology are solved.
Owner:WUHAN UNIV
Robot automatic navigation method and system based on depth vision fusion
The invention discloses a robot automatic navigation method and system based on depth vision fusion, and relates to the technical field of intelligent navigation, and the method comprises the steps: carrying out the registration of a point cloud subset of continuous frames through employing an ICP algorithm, distributing weights for a static obstacle and a dynamic obstacle, and carrying out the fusion, and obtaining a fused environment perception data set. The method comprises the following steps: updating a dynamic environment in real time, generating a dynamic environment map, carrying out trajectory tracking on moving targets by using binocular vision equipment, calculating a real-time motion trajectory of each moving target, obtaining an environment hotspot map, generating a global navigation path for a robot by using an A * algorithm, planning a detouring path at the periphery of a hotspot area, and outputting a navigation path sequence. According to the method, intelligent optimization of the motion path of the robot is realized through path planning and an obstacle avoidance strategy, the safety is ensured, the path efficiency is maximized, and unnecessary detour and pause time is reduced.
Owner:SHIJIAZHUANG UNIVERSITY +1
Motion track display method and system based on Beidou positioning and medium
ActiveCN119689510ASatellite radio beaconingHigh level techniquesPattern recognitionComputer graphics (images)
The invention provides a motion trail display method and system based on Beidou positioning and a medium. The method comprises the following steps: acquiring real-time positioning position data and positioning time data received by intelligent wearable equipment, processing according to the positioning time data to obtain effective positioning time data, acquiring corresponding effective real-time positioning position data, calculating to obtain positioning position deviation data, and performing threshold comparison to obtain a positioning difference state; positioning parameters are obtained and processed according to the positioning difference state, effective positioning position data are obtained after comparison, fusion position data are obtained after processing is conducted according to the real-time motion state data and the effective positioning position data, and the fusion position data are labeled in a motion coordinate system of the intelligent wearable device to obtain and display a motion track; therefore, the technology of obtaining and displaying the motion trail is realized by judging the effective positioning time data and the positioning difference state and calculating the effective positioning position data.
Owner:深圳市微克科技有限公司
Methods and Systems for Centimeter-accurate Localization with Carrier Phase from Asymmetric Antennas
PendingUS20240421474A1
Example embodiments relate to centimeter-accurate localization using asymmetric antennas. A pair of mobile devices can establish a wireless communication connection with one device acting as a base station and the other being a rover for real-time kinematic (RTK) positioning. When the mobile devices have similar asymmetric antennas for Global Navigation Satellite System (GNSS) signal reception, errors caused by the asymmetric antennas can be canceled by combining measurements from both devices. The rover mobile device may display instructions for the user to adjust its orientation to align with the orientation of the base station mobile device. The rover mobile device can then obtain and use measurement or correction data from the base station to determine its position relative to the rover mobile device. Such techniques can be performed by complementary model devices to be used to map areas to a high degree of precision (e.g., centimeter level), including elevation.
Owner:GOOGLE LLC
Communication resource scheduling method and system of low earth orbit satellite
The invention provides a communication resource scheduling method and system for a low-orbit satellite, and the method comprises the steps: transmitting a spot beam to a target region by the low-orbit satellite through a directional antenna, and starting to provide communication services for all target terminals in the coverage range of the spot beam; when the preset switching period is ended, the satellite resource control center determines a new low earth orbit satellite taking over the target area according to the real-time motion information of the low earth orbit satellite; controlling the new low-orbit satellite to adjust the pointing angle of the directional antenna so as to enable the spot beam emitted by the new low-orbit satellite to cover the target area; meanwhile, beam switching instructions are generated and sent to all target terminals in batches; and all the target terminals execute a beam switching action so as to continuously provide communication services for all the target terminals through the spot beams emitted by the new low-orbit satellites. According to the invention, unified beam switching of all user terminals in the target area is realized, the situation of high concurrency of switching instructions of a satellite resource control center when the number of users is large is avoided, and the communication response speed of the users is improved.
Owner:BEIJING MIBO TELECOMM TECH CO LTD
Dam termite nest positioning method based on intelligent multi-mode fusion and detection equipment
PendingCN120428218ASatellite radio beaconingRadiation thermographyGlobal Positioning SystemPollution
The invention relates to the technical field of dam termite prevention and control in water conservancy and hydropower engineering, in particular to a dam termite nest positioning method and detection equipment based on intelligent multi-mode fusion, which utilizes technologies such as geological radar, infrared thermal imaging, RTK (Real Time Kinematic) and GPS (Global Positioning System) positioning and is assisted by a machine learning algorithm to carry out data processing. An infrared thermal imaging camera carried by a crawler chassis is used for rapidly scanning the surface of a dam and finding out temperature abnormal points which may be termite activity areas, an underground high-resolution image is further obtained through a carried ground penetrating radar, meanwhile, coordinate information of the areas is collected, a high-precision dam area map is combined, and the termite activity area is obtained. The termite nest position is further accurately confirmed; by means of the method, the accuracy and efficiency of dam termite nest positioning can be remarkably improved, meanwhile, the environmental pollution risk caused by a traditional method is reduced, and the method is beneficial to protection of safe and stable operation of a water conservancy project and makes a contribution to environmental protection.
Owner:ZHUJI WATER CONSERVANCY BUREAU +1
Mobile real time kinematic (RTK) / precise point positioning (PPP) enhancement with antenna PCO / PCV compensation
ActiveUS20240418871A1Satellite radio beaconingLocation information based serviceReal Time KinematicSatellite system
Techniques for global navigation satellite system (GNSS)-based positioning of a mobile device based on antenna phase center compensation are disclosed. The techniques can include determining a phase center profile of a receiver antenna of the mobile device that is placed in a fixed-frame condition and executing an antenna phase center compensation procedure upon detecting placement of the mobile device in a non-fixed frame condition. The antenna phase center compensation procedure can include obtaining attitude information of the mobile device based at least in part on sensor data obtained from one or more sensors of the mobile device, and incorporating the attitude information of the mobile device into the phase center profile of the receiver antenna of the mobile device. A global navigation satellite system-based positioning operation may be executed that includes antenna phase center compensation based at least in part on incorporating the attitude information into the phase center profile.
Owner:QUALCOMM INC
Motion control for heavy-duty vehicles using real-time kinematic positioning
PendingUS20250123402A1External condition input parametersSatellite radio beaconingControl engineeringReal Time Kinematic
A control unit for managing the motion of a heavy-duty vehicle via real-time kinematic positioning is disclosed. The control unit comprises a vehicle state interface designed to retrieve state information from vehicle state sensors, including kinematic parameters and information about the availability of RTK correction data. The nominal operational design domains and corresponding RTK-enhanced ODDs are defined, wherein each nominal ODD maintains enhanced safety margins when contrasted with its RTK-enhanced counterpart. The control unit's functionality includes the selection of an active ODD based on availability of RTK correction data, selecting an RTK-enhanced ODD when such data is available, and selecting a nominal ODD when absent. The control unit subsequently directs the vehicle's motion using the kinematic parameters in alignment with the active ODD.
Owner:VOLVO TRUCK CORP
Unmanned aerial vehicle visual tracking method and system based on neural network
The invention provides an unmanned aerial vehicle visual tracking method and system based on a neural network, and the method comprises the steps: collecting a dynamic image sequence containing the motion track information of a target object in real time through a camera device carried by an unmanned aerial vehicle, and carrying out the multi-scale spatial-temporal feature extraction of the sequence; the method comprises the steps of obtaining global motion features representing displacement changes of a target in a three-dimensional space and local texture features representing surface detail space-time continuity, inputting the global motion features and the local texture features into a pre-trained neural network model for fusion, generating real-time motion prediction parameters, adjusting flight attitude parameters of an unmanned aerial vehicle according to the real-time motion prediction parameters, and generating a dynamic tracking instruction. The unmanned aerial vehicle and the target are controlled to keep a preset relative motion relation, the dynamic tracking instruction drives the unmanned aerial vehicle to execute a tracking task, an image sequence is updated in real time and fed back, closed-loop tracking control is formed, and efficient, stable and accurate visual tracking of the target object is achieved.
Owner:SICHUAN YUNTU SHIJING SMART TECHNOLOGY CO LTD
Satellite-borne SAR radar target real-time guiding method based on ADS-B signals
ActiveCN120762027ASatellite radio beaconingRadio wave reradiation/reflectionData setSynthetic aperture radar
The invention discloses a satellite-borne SAR (Synthetic Aperture Radar) radar target real-time guiding method based on ADS-B (Automatic Dependent Surveillance-Broadcast) signals, which relates to the technical field of radar control, and comprises the following steps: receiving Beidou dual-band signals and global ADS-B signals in real time, resolving by adopting a carrier phase double-difference ionosphere elimination combinatorial algorithm, and obtaining a satellite-borne SAR generating satellite platform pose data including satellite position component data, satellite speed component data and satellite attitude component data; inputting the airspace target point cloud data set into an adaptive airspace clustering algorithm, dynamically adjusting a clustering neighborhood radius by using satellite speed component data, and outputting central geographic coordinates of a target dense area; fusing the beam pointing vector and the angular velocity data through a beam-attitude dynamic coupling controller, and generating a phase shifter code value adjustment instruction; the neighborhood recognition range is dynamically adjusted through the real-time motion state of the satellite, and the positioning precision and timeliness of the dynamic airspace target dense area are remarkably improved. And the continuous monitoring capability and the guiding precision of the time-sensitive target are improved.
Owner:YANTAI SANHANG RADAR SERVICE TECH INSITITUTE
Real time kinematics in golf fleet vehicles
PendingUS20250295965A1Satellite radio beaconingGolf club bagsCommunication interfaceReal Time Kinematic
A vehicle system includes a RTK hub, a vehicle, and one or more processing circuits. The RTK hub is configured to be positioned at a known location, and includes a first communications interface configured to facilitate acquiring a hub GPS position of the RTK hub based on a hub GPS signal acquired from a GNSS satellite. The vehicle includes a sensor configured to acquire a vehicle GPS position of the vehicle based on a vehicle GPS signal from the GNSS satellite and a second communications interface configured to facilitate communications between the vehicle and the RTK hub. The processing circuits are configured to determine corrective position data based on the hub GPS position and the known location, determine a corrective position of the vehicle based on the vehicle GPS position and the corrective position data, and control an operation of the vehicle based on the corrective position of the vehicle.
Owner:TEXTRON INNOVATIONS INC
GNSS RTK and MEMS IMU fusion positioning method based on vehicle-mounted smart phone terminal
A GNSS (Global Navigation Satellite System) RTK (Real Time Kinematic) and MEMS (Micro Electro Mechanical System) IMU (Inertial Measurement Unit) fusion positioning method based on a vehicle-mounted intelligent mobile phone terminal comprises the following steps: acquiring original measurement values of a GNSS and an MEMS IMU, converting the GNSS into an international general format RINEX, downloading nearby public base station satellite data to carry out RTK positioning of a base station and a mobile phone terminal, and carrying out speed smoothing filtering to obtain position calculation; smooth transition when the satellite quality is poor is completed through a GNSS RTK and MEMS IMU loose combination; and finally, completing threshold judgment of parking detection on IMU data through a tree structure Parzen estimation algorithm (TPE), calculating a precision difference with a data truth value, and iteratively obtaining an optimal threshold and a positioning result. The method is simple and accurate in positioning based on the low-precision sensor and the satellite and inertial navigation sensor data of the vehicle-mounted mobile phone by combining the parking characteristics of the vehicle during running.
Owner:SHANGHAI JIAOTONG UNIV
Unmanned aerial vehicle identification method, device, equipment, medium and computer program product
The invention provides an unmanned aerial vehicle recognition method, device and equipment, a medium and a computer program product, and the method comprises the steps: inputting a multi-dimensional feature vector of a to-be-detected terminal into a motion mode recognition model, and outputting a motion mode type; if the type of the motion mode shows that the to-be-detected terminal is suspected to be an unmanned aerial vehicle object, performing spatial matching on the multi-dimensional feature vector and GIS data to obtain a geographic information model; and determining whether the to-be-detected terminal is an unmanned aerial vehicle or not according to a comparison result of the real-time motion state of the to-be-detected terminal and the geographical environment characteristics. The unmanned aerial vehicle identification method provided by the invention not only considers the motion information of the to-be-detected object, but also combines GIS information, especially auxiliary verification of actual road network information and building information, can distinguish the unmanned aerial vehicle and other targets easy to confuse with the unmanned aerial vehicle in a complex environment, can realize accurate identification of the unmanned aerial vehicle, and improves the detection accuracy of the unmanned aerial vehicle. And decision accuracy is improved.
Owner:CHINA MOBILE CHENGDU INFORMATION & TELECOMM TECH CO LTD +1
Minimally invasive puncture system based on navigation system
PendingUS20260007474A1Surgical needlesSurgical navigation systemsPhysical medicine and rehabilitationReal Time Kinematic
The provided is a minimally invasive puncture system based on a navigation system. The minimally invasive puncture system includes a puncture instrument and an electromagnetic navigation module. A first electromagnetic positioning sensor in the electromagnetic navigation module is fixedly provided on a puncture needle body portion of the puncture instrument, and a second electromagnetic positioning sensor is slidably sleeved on the puncture needle body portion. An electromagnetic positioning reading device in the electromagnetic navigation module is configured to acquire real-time coordinates of the first electromagnetic positioning sensor and the second electromagnetic positioning sensor, so as to obtain a real-time movement trajectory of the second electromagnetic positioning sensor relative to the first electromagnetic positioning sensor, thereby determining whether a real-time needle insertion trajectory of the puncture needle body portion entering the human body conforms to a system-default needle insertion trajectory.
Owner:SHANGHAI MEDVIDA MEDICAL TECH CO LTD
Positioning rod for fixing RTK surveying instrument
ActiveCN222278026URealize regular workEasy to fixMachine framesStands/trestlesReal Time KinematicStructural engineering
The utility model provides a positioning rod for fixing an RTK (Real Time Kinematic) surveying instrument, which belongs to the technical field of surveying and mapping, and comprises a main rod body, the top of the main rod body is coaxially and fixedly connected with an RTK, the main rod body is fixedly connected with a positioning ring, the output end of the positioning ring is fixedly connected with a handbook, the bottom of the main rod body is coaxially and fixedly connected with a threaded rod, and the threaded rod is fixedly connected with the RTK. And the bottom of the threaded rod is fixedly connected with a matched cross rod. By arranging the cross-shaped inserting plate, the device can be inserted into soil to achieve self-anchoring when facing a soft soil ground, so that the device is better fixed, and meanwhile, when facing a paved road surface or a hardened road surface, the supporting arms can make contact with the ground through adjustment of the supporting adjusting mechanism, so that the device is more convenient to use. The main rod body is integrally supported at multiple angles by matching with the cross-shaped inserting plate, so that the overall inclination of the device is avoided, and meanwhile, when the device faces soft soil, the main rod body can be fixed by inserting the supporting arms into the soil.
Owner:ANHUI SHANGCE ZHIGU INFORMATION TECHNOLOGY CO LTD
Data processing method and system based on airspace monitoring of unmanned aerial vehicle
ActiveCN119763377AInternal combustion piston enginesAircraft traffic controlData setTime series dataset
The invention discloses a data processing method and system based on unmanned aerial vehicle airspace monitoring. The method comprises the following steps: acquiring real-time motion parameter data and timestamps of each unmanned aerial vehicle and aircraft in an unmanned aerial vehicle group; according to the motion parameter data and the timestamp, carrying out data point equal-interval sampling operation to obtain a time sequence data set; performing data cleaning operation according to the time sequence data set to obtain screened data; according to the screening data, performing normalization operation to obtain normalized data; performing relative collision risk calculation according to the normalized data to obtain relative collision risk data; according to the relative collision risk data and the time sequence data set, performing path planning matrix construction operation to obtain risk target point set data; and performing conflict-free screening operation according to the risk target point set data to obtain a target point. The method can reduce the collision risk of the unmanned aerial vehicle.
Owner:ZHAOQING AGRICULTURAL SCHOOL (ZHAOQING ENGINEERING & TECHNOLOGY SECONDARY VOCATIONAL SCHOOL) +1
Systems for locating a golf ball position of a plurality of golfers
Systems and methods for determining the at-rest position of the golf ball of one or more golfers during tournament play. Beacons worn either by a golfer or another person associated with the golfer's playing group collect or receive a location signal from one or more global navigation satellite system (GNSS) satellites, wherein the signal's accuracy can be enhanced using real time kinematic (RTK) correction data. Location signals collected or received by the beacons are requested by, and transmitted back to, a portable device in radio frequency (RF) communication with one or more of the beacons and operated by the user. Methods and systems of the present invention can also utilize a laser rangefinder, operated by the user, to measure line-of-sight distance, inclination angle, and azimuth to a golfer's golf ball from the user's determined GNSS location when the beacon is worn by the user.
Owner:R2 INNOVATIVE TECHNOLOGIES
Vehicle turning path planning method and device for irregular land parcels
PendingCN121635303AVehicle position/course/altitude controlPosition/direction controlSimulationReal Time Kinematic
The invention provides a vehicle turning path planning method and device for irregular land parcels, and is applied to the technical field of path planning, and the method comprises the steps: carrying out the initialization of a pheromone field based on the boundary data of a geographic information system and internal obstacle data, and constructing a rasterized map for representing a passable region; based on the current state of the vehicle, determining the minimum distance of obstacles in the surrounding environment of the target vehicle; based on the real-time movement speed, the minimum turning radius of the target vehicle is determined; determining a dynamic corridor parameter of the target vehicle based on the minimum distance and the minimum turning radius of the surrounding obstacle; based on the dynamic corridor parameters and the pheromone field of the rasterized map, generating a turning point probability density field of the target vehicle, and sampling the turning point probability density field to obtain a turning point set; and constructing a turning path of the target vehicle based on the turning point set, and determining the turning cost of the turning path. According to the invention, Pareto optimization of energy consumption and efficiency in a complex scene can be realized.
Owner:BEIJING RES CENT FOR INFORMATION TECH & AGRI
Method and system for quickly establishing hoisting process for automatic driving tower crane based on RTK (Real Time Kinematic)
PendingCN119612362AImprove the efficiency of hoisting operationsImprove operational efficiencyLoad-engaging elementsControl systemControl engineering
The invention relates to the technical field of building construction safety, in particular to a method and system for rapidly establishing a hoisting process for an automatic driving tower crane based on RTK. The method comprises the following steps that the position of a tower crane body, the position of a hoisting point and the position of a falling hoisting point are positioned through an RTK handheld positioner, and the positioning is sent to a mobile control end; meanwhile, a field worker makes a hoisting request with a tower crane administrator through an interphone and carries out process examination and approval communication; the mobile control terminal quickly and automatically establishes a hoisting process according to the positioning information, then the hoisting process is checked by a tower crane manager, and after the checking is successful, the hoisting process is sent to the central control system; and the central control system controls the tower crane to move according to the hoisting process, the tower crane firstly reaches the hoisting point to hoist the goods and then moves to the hoisting point with the goods, and finally goods transportation is completed. According to the method, the cargo hoisting point and the cargo dropping point can be accurately determined, so that the dispatching operation efficiency of automatic driving of the tower crane is improved.
Owner:中科骊久(济南)机器人有限公司
Unmanned aerial vehicle cluster formation control method and system based on multi-level intelligent algorithm
ActiveCN121635470AVehicle position/course/altitude controlPosition/direction controlAlgorithmCollision detection
The invention relates to the technical field of unmanned aerial vehicle autonomous control, and discloses an unmanned aerial vehicle cluster formation control method and system based on a multi-level intelligent algorithm, and the method comprises the steps: obtaining the external environment monitoring data and motion state data of an unmanned aerial vehicle cluster, constructing a multi-target comprehensive cost function, and carrying out the optimization of a cluster formation initial track, obtaining an optimal trajectory set meeting dynamic constraints; executing collision risk assessment on the sampling points on the optimal trajectory set, and outputting a trajectory safety judgment result; performing mathematical characterization and eigenvalue modulation on the formation topological structure through a Laplacian matrix, and generating target formation parameters adapted to environmental constraints; and finally, converting the optimal track set and the target formation parameters into a bottom layer flight control instruction, driving the unmanned aerial vehicle to execute a flight action, and collecting real-time motion state data at the same time. Therefore, the problems that in the prior art, trajectory optimization convergence is slow, collision detection real-time performance is poor, formation dynamic adaptation is insufficient, and system module collaboration is weak are solved.
Owner:GHOSTCLOUD
Two-dimensional formation composite sliding mode control method under explicit convergence time limit
PendingCN121979224AVehicle position/course/altitude controlAdaptive controlVirtual vehicleDynamic models
The invention provides a two-dimensional formation composite sliding mode control method under an explicit convergence time limit, and relates to the technical field of automatic driving cooperative control. The method comprises the following steps: firstly, acquiring real-time motion state information of a pilot vehicle and N following vehicles, and establishing a third-order nonlinear dynamic model of each following vehicle; calculating a tracking error of the following vehicle based on the virtual vehicle strategy; dynamically processing the predetermined performance constraints; constructing a composite finite time sliding mode surface of a layered structure, and determining a total execution time limit required by convergence of all monitoring signals in the two-dimensional vehicle formation control system from an initial deviation state to a predefined steady state region; and finally, on the basis of the composite finite time sliding mode surface, an external disturbance boundary is estimated online in combination with an adaptive control algorithm, a control instruction is generated, and a monitoring signal is forced to reach a steady state in an explicit time upper boundary. The method provides a visual performance estimation means for practical engineering application, and improves the stability, rapidity and accuracy of two-dimensional formation control.
Owner:NORTHEASTERN UNIV AT QINHUANGDAO
Interactive artificial intelligence golf assistant system
ActiveUS12296246B2Gymnastic exercisingTeaching apparatusComputer graphics (images)Real Time Kinematic
The embodiments disclose a system for interactively providing golf swing guidance to a user on a golf course including a database coupled to a remote server to collect, store and maintain updated topography of golf courses based on LIDAR, a club sensor configured to removably attach to one or more portions of the golf club and further configured to collect the club sensor golf club swing data as the user operates the golf club in a practice swing, a remote server configured to interactively identify a location of a user on the LIDAR topography when positioned at a golf course using a real-time kinematics device, a user audio device wirelessly coupled to the remote server configured to interactively communicate feedback guidance to and from the user of golf club selection and golf club swing adjustments.
Owner:PETERSON JACK +2
Radar real-time data transmission processing classification identification method and system
The application relates to the technical field of data processing, and discloses a radar real-time data transmission processing classification identification method and system.The method comprises the following steps: performing track mode identification on narrowband data of a target radar to obtain a real-time motion mode category of the narrowband data; performing directional region selection on synchronous wideband echo data of the target radar based on the real-time motion mode category to obtain a signal segment of the synchronous wideband echo data; performing sparse decomposition on the signal segment to obtain compact features of the signal segment; performing motion mode compatibility quantification on the compact features based on the real-time motion mode category to obtain category scores of the compact features; performing feedback adjustment on the real-time motion mode category based on the category scores and the compact features to obtain an optimized motion mode of the real-time motion mode category; and performing confidence fusion judgment on the optimized motion mode to obtain a classification identification of the real-time motion mode category; and the application can improve the efficiency of radar real-time data transmission processing classification identification.
Owner:ZHEJIANG LANJIAN DEFENSE TECH CO LTD
RTK positioning method suitable for quadruped robot in outdoor wide area range
PendingCN121657086ANavigation by speed/acceleration measurementsSatellite radio beaconingWide areaOriginal data
The invention discloses an RTK (Real Time Kinematic) positioning method applicable to a quadruped robot in an outdoor wide area range, and aims to solve a series of problems caused by insufficient adaptability of an existing GNSS (Global Navigation Satellite System) RTK positioning scheme to the quadruped robot. Accessing a network differential data server by using an NTRIP network protocol through a built-in 4G mobile network receiver of the GNSS receiver, and trying to obtain RTCM3.2 differential data; in the GNSS receiver, if the RTCM3.2 differential data is successfully received, RTK calculation is carried out by combining the satellite original data and the RTCM3.2 differential data, and RTK positioning data is generated; and outputting the generated positioning data to a main controller of the quadruped robot through a communication interface of the GNSS receiver.
Owner:HUARUAN TECH CO LTD