46 results about "3D radar" patented technology

The invention provides a measuring point selection method and system based on a 3D radar level gauge, and relates to the technical field of measurement, and the method comprises the steps: obtaining original 3D radar point cloud data of a measurement scene, carrying out the adaptive space division of the measurement scene through employing an improved octree algorithm, obtaining a three-dimensional reconstruction result of the measurement scene, and carrying out the calculation of the three-dimensional reconstruction result. Performing normal vector calculation and region clustering, and determining a plurality of key regions in the three-dimensional reconstruction result in combination with a region growing and merging algorithm; and taking maximization of the coverage degree of the measurement points to the key area as a first target, taking minimization of the geometric distribution difference degree between the measurement points as a second target, solving the single-target optimization problem through an improved differential evolution algorithm, and selecting a solution with an optimal comprehensive evaluation index as a final 3D radar level gauge measurement point optimization arrangement scheme.

The invention discloses a mechanical 3D radar control method and system, a storage medium and electronic equipment, and relates to the technical field of radar control. The method comprises the following steps: determining a scanning coverage area based on working state parameters of the mechanical 3D radar, and dividing the scanning coverage area into a plurality of scanning units; acquiring radar echo signals in each scanning unit, performing signal enhancement processing on the radar echo signals according to the spatial position information of each scanning unit, generating enhanced target echo data, performing time sequence analysis and coherent accumulation processing on the target echo data, and extracting frequency domain features based on a coherent accumulation result; performing target extraction on the target echo data according to the frequency domain features to obtain target feature information of each scanning unit; and determining control parameters of the mechanical 3D radar according to the target feature information, and controlling the mechanical 3D radar to execute according to the control parameters. By implementing the technical scheme provided by the invention, the resource utilization efficiency of the mechanical 3D radar can be improved.

The application provides a 3D radar measurement system capable of extending communication, comprising at least one communication branch; each communication branch comprises a first data transmission medium and at least one radar body; the radar body is used for generating measurement data; the measurement data is transmitted to a data communication relay module through the first data transmission medium and is transmitted to a central control end by the data communication relay module; for each radar body of any communication branch, when the distance of the first data transmission medium laid between the radar body and the data communication relay module or the central control end exceeds or approaches the limit distance of normal communication transmission of the first data transmission medium, at least one communication expansion module is laid between the corresponding radar body and the data communication relay module or the central control end. The application can optimize the wiring configuration of the measurement system, reduce the overall wiring cost of the measurement system, and make the measurement system have communication scalability, which is helpful to realize stable communication of the measurement system.

The application discloses a kind of millimeter wave radar point cloud registration methods and devices for vehicle-road cooperation automatic driving, belong to point cloud registration field.The application utilizes the complementary advantages of camera and millimeter wave radar, realizes the accurate registration of vehicle-infrastructure sparse disorder 3D radar point cloud, solves the problem of difficult extraction of sparse disorder radar point cloud semantic features and point pair difficult correspondence.Meanwhile, adaptive scheduling strategy is designed, considering the triggering factor of vehicle and the change degree of point cloud in infrastructure field of view to adaptively trigger data request to ensure real-time registration between multiple vehicles-infrastructure.The application takes camera data and radar point cloud data of vehicle and infrastructure as input and finally completes point cloud registration, while meeting the real-time and accuracy of millimeter wave radar point cloud registration, realizes the improvement of vehicle perception range and perception accuracy in heavy fog weather, and supports the further improvement of millimeter wave radar performance in target detection, path planning and other applications.

The utility model discloses a 3D radar level gauge installation device, which belongs to the technical field of level gauge installation, is used for a silo, a top plate of the silo is provided with an installation hole, the 3D radar level gauge is placed on the inner side of the silo through the installation hole, and is characterized in that the installation device comprises a counter bore cover plate and at least one screw rod; the counter bore cover plate is located on the outer side of the silo, and the counter bore cover plate is arranged on the mounting hole in a covering mode; one end of the screw rod is connected with the counter bore cover plate, and the other end of the screw rod is connected with a body flange at the bottom of the 3D radar level gauge. The 3D radar level gage is installed through the counter bore cover plate and the screw rod, so that the position of the 3D radar level gage sinks, pedestrians are prevented from being stumbled, the use safety is improved, it is guaranteed that obstacles are avoided below the installation position, the problem of measurement blind areas is solved, meanwhile, the counter bore cover plate can prevent coal on a belt from falling off to block the 3D radar level gage, and the safety of the 3D radar level gage is improved. And measuring errors are generated.

The application discloses a kind of accurate coal blending car loading system and method of coal preparation plant, the system includes warehouse belt, online coal quality detector a, coal bunker, 3D radar volume monitor, coal feeder, belt scale a, loading belt, online coal quality detector b and belt scale b;Online coal quality detector a is installed on warehouse belt, coal bunker is connected downstream of warehouse belt, 3D radar volume monitor is installed in coal bunker, the outlet of coal bunker is connected with coal feeder, the downstream of coal feeder is connected with belt scale a, the downstream of belt scale a is connected with loading belt, the downstream of loading belt is connected with loading train, online coal quality detector b and belt scale b are installed on loading belt.The method compares the coal quality detection result of loading coal sample and loading requirement, combines the coal quantity of loading and the coal quantity demand required for loading, adjusts the opening of coal feeder under coal bunker to adjust the blending ratio of different coal bunkers, and finally ensures that the coal quality of the whole loading train meets the standard.

1. Name of the product in this design: 3D radar scanner. 2. Purpose of this design: Scanning imaging. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design points: Component 1 3D view 1.

This invention provides a three-dimensional radar vision inspection method and system. The method first performs two-dimensional image inspection on the target object to preliminarily determine its material properties, and then sends a first electromagnetic wave to the target object to perform three-dimensional modeling. Next, material parameters are assigned to the target model, and electromagnetic wave propagation simulation is performed to obtain a simulated radar waveform. Ray tracing measurements are then performed on the target object using radar to obtain a measured radar waveform. The simulated radar waveform and the measured radar waveform are compared. If the difference between the two is within a first preset range, the material of the target object matches the material corresponding to the assigned material parameters. If the difference is still within the first preset range, the material parameters are updated, and the above steps are repeated. This inspection method can not only acquire the three-dimensional morphological information of the target object but also determine its surface material properties, overcoming the limitations of existing technology systems and providing comprehensive object recognition and material analysis capabilities.

The present application belongs to the technical field of tunnel cave data analysis, and in particular relates to a tunnel cave water inflow prediction analysis method and system based on a geological radar. The method first extracts amplitude intensity, hyperbolic shape and disorder degree from 3D radar volume data, then cooperatively identifies abnormal reflection regions, then for the abnormal cave sections, extracts abnormal parameters to comprehensively calculate a water inflow risk index, simultaneously calculates an effective water storage volume according to the abnormal body parameters, and combines radar data to identify the current water content, then combines the water inflow risk index, water content and water storage volume to calculate the estimated water inflow of each section, and finally comprehensively predicts and outputs the overall estimated water inflow of the tunnel cave according to a preset rule. The present application effectively improves the accuracy of the water inflow of the tunnel cave, can provide reliable data support for water inflow prevention and control decisions during tunnel construction, effectively reduces the risk of water inflow accidents, and ensures construction safety and efficiency.

The invention discloses a 3D radar scanning robot based on a two-degree-of-freedom parallel mechanism motion platform, and relates to the technical field of granary measurement. The problem that in the information acquisition process of an existing mechanical 3D millimeter wave radar, due to the fact that a used three-degree-of-freedom series mechanism is large in motion error, the granary inventory detection precision is low is solved. A tray (4) and a base part (1) are arranged in parallel, the tray (4) and the base part (1) are connected through a movable part (2), the upper portion of the movable part (2) is rotationally connected with the tray (4), a control part (3) is installed between the tray (4) and the base part (1), the upper portion of the control part (3) adjusts the pose of the tray (4) in a telescopic mode, and a 3D millimeter wave radar (5) is installed on the tray (4). The method is used for the millimeter wave radar detector in the granary and related real-time measurement.

The application discloses a kind of car stereoscopic navigation method, comprising: the situation around the vehicle body detected by 3D radar is collected by sensing module;Image information after processing is uploaded to cloud;The image combined with cloud information is transmitted to decision module, and the optimal path information of the navigation information of vehicle is made;After determining feasibility, generate navigation information;According to navigation information, generate prompt and path information display, finally navigation information and path information are displayed on the display of display module.The car stereoscopic navigation method provided by the application is more accurate, real-time, can help vehicle accurately find the road segment where it is located in complex road segment, avoid driver getting lost, so that driver fully understands surrounding state, judges road traffic condition in real time;Information exchange between vehicle and road is fed back to three-dimensional stereoscopic navigation, for monitoring road surface condition, guiding driver to select the best driving path.

The invention discloses a 3D radar control method and device, a program product and a storage medium, and relates to the technical field of radar control. A radar detection area is divided into a plurality of detection sub-areas, and reflected signal intensity, effective echo rate and background noise are respectively acquired in each detection sub-area, so that target characteristics and electromagnetic environment differences of each area are comprehensively reflected. And a target detection evaluation value is calculated based on the information, and different detection parameters are configured for the central region and the peripheral region of each detection sub-region, so that the detection parameters can be differentially configured according to region characteristics. According to the parameter configuration mode based on the regional characteristics, the detection performance of a key region can be improved in a targeted manner, and meanwhile, the detection requirements of a peripheral region are considered, so that the problem that the detection performance of a unified parameter configuration scheme is insufficient in a complex scene is solved, and the overall detection effect of the radar in the complex scene is improved.

The invention discloses an automatic leak repairing robot and a leak repairing method thereof, and the method comprises the following steps: S1, enabling the leak repairing robot to move to a target carriage along a track, positioning the position of the carriage through a scanning device, and recognizing the identification number of the carriage; s2, pre-stored compartment door parameters are called according to the compartment identification number; s3, moving to a vehicle door position according to the compartment door parameters, and identifying door slot information and adhesive residue information; s4, the moving speed is adjusted according to the door crack information and the residual glue information, and spraying and leak repairing are conducted on the door crack; and S5, after leakage repairing of the current vehicle door is completed, the vehicle door is moved to the next vehicle door, and S3 and S4 are executed circularly till leakage repairing operation of the whole compartment is completed. According to the invention, a machine vision perception technology is adopted, a 2D camera image and 3D radar point cloud data program algorithm is innovated, and the length, width and position information of the compartment door slot are accurately identified; interference factors such as dirt, residual glue and ambient light change of the compartment door slot are solved through processing modes such as noise filtering, data acquisition and intelligent compensation, and the recognition rate of the compartment door slot is effectively improved.

The invention belongs to the technical field of power transmission, and discloses a three-dimensional protection system and method for a power transmission line channel construction scene, and the system comprises a hoisting structure, a current transformer, a control box, and a radar unit. The current transformer is fixedly arranged on one side of the hoisting structure, and the current sensor is configured to be clamped on the outer side of the wire; the hoisting structure is fixedly connected with the top of the control box, and the radar unit is arranged at the bottom of the control box; a photovoltaic panel is arranged on the outer side face of the control box, a battery pack, a power management module and a main control unit are arranged in the control box, and the main control unit is in communication connection with the radar unit. And the photovoltaic panel, the current transformer and the battery pack are electrically connected with the power management module. According to the invention, 3D radar detection, a data processing algorithm, an integrated energy system and a stable communication system are fused, and real-time monitoring and accurate ranging early warning of potential threats of the power transmission line are realized, so that the occurrence rate of faults caused by external damage is effectively reduced, and safe and stable operation of a power grid is guaranteed.

The invention relates to a 3D radar material level instrument and a material level scanning imaging system, and belongs to the technical field of detection. The bearing frame is horizontally and rotatably connected to the mounting frame; the driving assembly is mounted on the mounting frame and used for driving the bearing frame to rotate; the swinging frame is connected to the bearing frame in a swinging manner; the swing assembly is mounted on the mounting frame and used for driving the swing frame to swing; the probe is mounted on the swing frame; the protective shell covers the mounting frame, the bearing frame, the driving assembly and the swing frame, and the swing assembly and the probe are arranged in the protective shell; and the protective shell is transparent at a position close to the probe. The method has the beneficial effect of improving the space utilization rate.

1. Name of the product in this design: 3D radar level scanner. 2. Purpose of this design: For use in 3D radar level gauges. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model relates to the technical field of 3D radar imaging material level instruments, and discloses a multi-angle dynamic scanning type 3D radar imaging material level instrument which comprises a shell assembly which comprises a shell base cover, a shell bottom cover arranged at the bottom of the shell base cover, a meter head fixedly installed on the top of the shell base cover and an upper cover fixedly installed on the top of the meter head. And a waterproof and dustproof mounting cavity is formed in the shell assembly. According to the multi-angle dynamic scanning type 3D radar imaging material level instrument, a stepping motor drives a gear to drive three sets of medium gears and transmission shaft gears which are distributed in a 120-degree mode to conduct synchronous transmission, a worm shaft drives a worm to be meshed with a worm gear, reciprocating type mechanical scanning of the movable radar module is achieved, meanwhile, static detection of the four fixed radar modules is matched, and the multi-angle dynamic scanning type 3D radar imaging material level instrument is achieved. A dynamic and static complementary 3D radar imaging system is formed, tempered glass protects the display screen and ensures that data are visible, and the plastic base disc and the stainless steel disc are combined with the sealing ring to achieve waterproof wave transmission.

The present application relates to a 3D radar level gauge and a level scanning imaging system, belonging to the technical field of detection. The 3D radar level gauge includes: a mounting frame; a receiving frame horizontally rotatably connected to the mounting frame; a driving component mounted on the mounting frame for driving the receiving frame to rotate; a swinging frame swingably connected to the receiving frame; a swinging component mounted on the mounting frame for driving the swinging frame to swing; a probe mounted on the swinging frame; a protective housing covering the mounting frame, the receiving frame, the driving component, the swinging frame, the swinging component and the probe therein; and the protective housing is transparently arranged near the probe. The present application has the beneficial effect of improving space utilization rate.

The present invention provides a method and system for selecting measuring points based on a 3D radar level meter, which relates to the field of measurement technology, including obtaining original 3D radar point cloud data of a measurement scene, using an improved octree algorithm to adaptively divide the measurement scene into three-dimensional spaces, obtaining a three-dimensional reconstruction result of the measurement scene, performing normal vector calculation and regional clustering, and combining a regional growing and merging algorithm to determine a plurality of key areas in the three-dimensional reconstruction result; taking maximizing the coverage of the measuring points to the key areas as a first goal, taking minimizing the difference in geometric distribution between the measuring points as a second goal, solving the single-objective optimization problem through an improved differential evolution algorithm, and selecting a solution with the best comprehensive evaluation index as a final 3D radar level meter measurement point optimization arrangement scheme.

The utility model relates to the technical field of 3D radar material level measurement, in particular to a 3D radar material level measuring instrument which comprises a 3D radar material level measuring instrument body, a cleaning mechanism and a protective shell, the cleaning mechanism comprises an arc-shaped seat, an L-shaped rod, an L-shaped frame and an electric push rod, a drainage groove is formed in the inner side of the arc-shaped seat, a rubber strip is arranged at the inner bottom of the drainage groove, and the inner bottom of the rubber strip is provided with a through hole. A fixing block is arranged at one end of the arc-shaped seat, a water collecting groove is formed in the fixing block, a collecting bottle is arranged below the fixing block in a threaded mode, a disc is arranged above the L-shaped rod, a water tank is arranged on the disc, a water pump is arranged in the water tank, the water outlet end of the water pump is communicated with a water outlet pipe, one end of the water outlet pipe is communicated with two flow dividing pipes, and a plurality of nozzles are arranged on the flow dividing pipes. By improving the cleaning technology, it is ensured that dust and cleaning water cannot directly fall on the ground, additional secondary cleaning work is avoided, and the time spent on cleaning the protective shell by workers is remarkably shortened.

This invention discloses a road target detection method that fuses 4D radar and visual sensors, belonging to the field of intelligent transportation environment perception and autonomous driving technology. First, radar point cloud data and camera image data are acquired and processed to obtain radar BEV features, 3D radar occupancy weights, and image features. Then, the radar BEV features and image features are input into an attention-guided depth distribution supervision module. By combining an attention mechanism with depth distribution supervision, a depth probability distribution map is generated. Next, by combining image features, 3D radar occupancy weights, and the depth probability distribution map, image BEV features are generated. Finally, the radar BEV features and image BEV features are input into a high-efficiency gated fusion module. By combining a difference-driven attention mechanism with gated residual fusion, fused BEV features are generated and input into the detection head, outputting the detection result. This invention can improve the accuracy and system stability of 3D road target detection.

The invention discloses a radar data pre-labeling method based on clustering. The method comprises the following steps: reading radar data; performing clustering processing on the radar data; target labels are edited based on clustering results, and the clustered normal targets are labeled; and taking a clustering result and a labeling result as a real labeling result. According to the radar data pre-labeling method based on clustering, radar data labeling is carried out based on clustering, the labeling precision of 3D radar data can be improved to be complete and just surrounds a target area, laser radar labeling can be rapidly achieved, and the workload is reduced by 90% or above; the problems of low radar data labeling precision, non-uniform rules and low radar data labeling speed can be solved; automatic labeling and model algorithm training can be realized, and pre-labeling, manual correction and algorithm training can be automatically realized; and multi-mode automatic labeling can be realized.

1. Name of the designed product: detection vehicle (road surface digital holography and road structure ground penetrating three-dimensional radar). 2. Use of the designed product: used as a detection vehicle. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.

The application provides a yard slot safety detection method and system, a yard crane and a medium, and relates to the technical field of automation. The method is applied to a radar detection system, the radar detection system is in communication connection with a programmable logic controller (PLC) of a spreader and a 3D radar arranged at a short side of the spreader. The method responds to a lock signal sent by the PLC, determines the current state of the spreader according to the lock signal, and the current state of the spreader includes that the spreader is not loaded with a container and the spreader is loaded with a container. A detection processing module is used to determine the point cloud of the safety detection area corresponding to the current state of the spreader according to the point cloud data sent by the 3D radar, and to perform safety detection on the spreader in the yard slot according to the point cloud of the safety detection area. The method can avoid a safety detection blind area and improve the effect and efficiency of safety detection in the yard slot.

A control method and system of a mechanical 3D radar, a storage medium and an electronic device, relate to the technical field of radar control. The method comprises: determining a scanning coverage area based on the working state parameters of the mechanical 3D radar, and dividing it into multiple scanning units; collecting radar echo signals in each scanning unit, and performing signal enhancement processing on the radar echo signals according to the spatial position information of each scanning unit to generate enhanced target echo data; performing time series analysis and coherent accumulation processing on the target echo data, and extracting frequency domain features based on the coherent accumulation results; extracting targets from the target echo data according to the frequency domain features to obtain target feature information of each scanning unit; determining control parameters of the mechanical 3D radar according to the target feature information, and controlling the mechanical 3D radar to execute according to the control parameters. The technical solutions provided by the present application can improve the resource utilization efficiency of the mechanical 3D radar.

1. The name of the product of this design: Material Scanner Box. 2. Purpose of the product of this design: A millimeter-wave 3D radar is installed for 3D scanning of materials stored in silos and to generate 3D point cloud data to achieve real-time detection of the surface shape and height of materials. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The utility model discloses an integrated injection molding antenna for a 3D radar, which comprises an antenna shell and a mounting base which are integrally formed by injection molding. According to the utility model, the antenna comprising the antenna shell and the mounting base is designed to be integrally injection-molded, and the rotating shaft on the antenna shell is also designed to be integrally injection-molded, so that the antenna structure is simplified, and a plurality of reinforcing ribs, mounting holes and wire slots are integrally arranged on the antenna shell; through the arrangement, the structure of the antenna shell is firmer and more stable, the laser ranging module, the angle sensor or the photoelectric coded disc and other components can be integrated conveniently, the fixation of the cable passing through the wire groove is good, cable bending and other damage caused by reciprocating motion can be greatly reduced, and the service life of the cable is greatly prolonged.

The invention relates to a three-dimensional radar echo extrapolation method based on deformation convolution dynamic field constraint. The method comprises the following steps: S1, continuously collecting radar reflectivity and radial speed data within 2 hours; s2, converting radar reflectivity data into three-dimensional data under a Cartesian rectangular coordinate system, mapping radial speed data into a radial rectangular coordinate system, and constructing a sample set; s3, acquiring middle-layer radial convergence feature information in the radial velocity diagram; s4, building a radar echo extrapolation model; s5, introducing deformation convolution to complete automatic extraction of the dynamic field information of the convection system; s6, dividing the sample set into a training set, a verification set and a test set; and S7, obtaining a reflectivity image in the next one hour. According to the method, the three-dimensional structural characteristics and the dynamic characteristics of the weather system are fully considered, and meanwhile, the complex evolution process of the weather system is accurately simulated and predicted in combination with the multi-source physical constraint information.

The invention provides an airport FOD target detection method and system based on a three-dimensional radar. The method comprises the steps that S1, an airport high-precision radar carries out preprocessing through radar original echoes; s2, performing an airport FOD detection analysis and target screening algorithm based on kernel density estimation; and S3, carrying out system global optimization and parameter adjustment based on performance inspection. According to the method, a rapid stabilization algorithm of the airport FOD target is realized, and rapid, stable and accurate target detection of the FOD is successfully realized by means of a kernel density FOD detection and target screening algorithm and by using field actual data. In continuous engineering application practices, continuous technology updating and method iteration form a set of complete method, and the engineering application shows that the scheme is effective and practical; the method solves a pain point in the airport aspect, realizes rapid, stable and reliable FOD target detection, and has very important application theory and engineering significance for eliminating the potential safety hazard of the FOD target in the airport.