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135 results about "3d laser scanner" patented technology
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Method and apparatus for machine guidance at a work site
InactiveUS20050283294A1Advanced technologyAnalogue computers for trafficComputations using stochastic pulse trainsTerrainDigital imaging
A method and apparatus for providing machine guidance of all types of earthmoving machinery, other heavy equipment, and work site vehicles. The method and apparatus is applicable to any industrial work site such as a construction site, open pit mine, quarry operation, or landfill. The machinery, equipment, or vehicle is not required to be equipped with a positional receiver of any kind. The position of all machinery, equipment, and vehicles is performed by employing an array of 3D laser scanners (or any 3D digital imaging devices) positioned throughout the work site. 3D images of the work site are transmitted from the laser scanners to a remote processing unit via a data link or network. The processing unit analyzes the images and determines the position of the machinery, equipment and vehicles. The positions are transmitted to the machinery, equipment, and vehicles via the data link or network. The current Digital Terrain Model (DTM) of the work site is captured and stored in real time in the form of a 3-D digital image, as a by-product of scanning the work site and determining the position of the work site machinery, equipment, and vehicles. The remote processing unit compares the current DTM to the work site's design DTM and transmits the difference to the required machinery, equipment, and vehicles for feedback to their operators in real time.
Owner:LEHMAN ALLEN A JR +2
Spatial digital plotting and 3D visualization method for private garden
InactiveCN109945845AReduce redundancyImplement the buildPhotogrammetry/videogrammetrySurveying instrumentsResearch ObjectData acquisition
The invention discloses a spatial digital plotting and 3D visualization method for a private garden. The method comprises the following steps that S1) data collection is carried out by obtaining holographic data of a plotting research object as well as holographic data of a control target via a 3D laser scanner, and close-range multi-visual-angle shooting measurement is carried out; S3) a point cloud model is established based on 3D laser scanning, concretely, after de-noising, coordinate matching, sampling rarefying and redundancy reduction, a spatial point cloud model of the plotting research object is established based on 3D laser scanning, S3) a 3D model is established based on a close-range multi-visual-angle image by obtaining the point-cloud data model according to the real-scene colors after splicing; S4) multi-source 3D model data fusion and model generation are realized; and S5) a 2D linear drawing is generated on the basis of the 3D laser scanning holographic data.
Owner:NANJING FORESTRY UNIV
Co-registration - simultaneous alignment and modeling of articulated 3D shapes
Present application refers to a method, a model generation unit and a computer program (product) for generating trained models (M) of moving persons, based on physically measured person scan data (S). The approach is based on a common template (T) for the respective person and on the measured person scan data (S) in different shapes and different poses. Scan data are measured with a 3D laser scanner. A generic personal model is used for co-registering a set of person scan data (S) aligning the template (T) to the set of person scans (S) while simultaneously training the generic personal model to become a trained person model (M) by constraining the generic person model to be scan-specific, person-specific and pose-specific and providing the trained model (M), based on the co registering of the measured object scan data (S).
Owner:MAX PLANCK GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN EV
3D laser scanning technology and BIM technology combined with the site construction management system
InactiveCN109101709AEnable accurate comparative analysisCorrect construction errors in timeGeometric CADImage enhancementPoint cloudOriginal data
The invention discloses a field construction management system combining 3D laser scanning technology and BIM technology, includes establishing and optimizing BIM model and managing construction quality on site. the process includes the following steps: (1) data collection: using a 3D laser scanner to scan on site, collecting the real and complete original data of target structure project, and obtaining the point cloud data with accurate spatial information; B, data processing: splicing, denoising, classifying and coloring the collected three-dimensional laser point cloud data by using the point cloud data preprocessing software; C, establishing a scanning model: importing that preprocess point cloud data into the Revit software to generate a scanning BIM model; D, 3D laser scanning and BIM technology synchronous site construction management: the scanned BIM model being accurately compared with the design CAD model and the BIM model, the difference between the construction site and thedesign being found, and the design model being optimized; simplifying the workload of quality management personnel.
Owner:CHINA MCC17 GRP
Method for establishing 3D digital maintenance platform of aircraft based on 3D laser scanning technology
InactiveCN104778742AIncrease valueNon-contactSpecial data processing applications3D modellingInformatizationSimulation
The invention relates to a method for establishing a digital maintenance platform of an aircraft based on a real 3D space point cloud by using a 3D laser scanning technology and a reverse modeling technology. The method disclosed by the invention comprises the following steps: firstly, obtaining point cloud data of the aircraft and parts thereof through a 3D laser scanner, and then on the basis of the point cloud data, generating the 3D digital model through data processing and reverse modeling. Based on the 3D digital model, a set of visualized operational software platforms in butt joint with the maintenance work of the aircraft is established, so that massive maintenance information can be related and integrated, and efficient convenient interactive functions can be established. The aircraft model data in the method is the real 3D point cloud information of the aircraft, and the aircraft model data can be used as maintenance information storage and maintenance interactive platforms and can complete space measurement, drawing extraction, staff training, maintenance simulation and the like in software, so that the aircraft maintenance work is greatly improved in the respects of digitalization, informatization, intelligentization and visualization.
Owner:CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP
Method and apparatus associating GPS position with three-dimensional laser scanner measurement
InactiveCN101303228ACompact and reasonable structureSimple methodBeacon systems using radio wavesPosition fixationGps receiverDeformation monitoring
The invention relates to a method of associated GPS positioning and 3D laser scanner measurement and apparatus thereof, wherein WGS-84 coordinates acquired through static positioning by a GPS receiver are introduced into 3D laser scanner measurement for being used in controlling coordinate conversion. The method realizes monitoring of 3D absolute deformation amount of a 3D laser scanner through a resolved equation of transformation, and associates GPS positioning with 3D laser scanner measurement through cooperation with the apparatus mainly composed of a pedestal, a beacon, and a connecting rod for holding the GPS receiver. The method is effectively applicable to deformation monitoring of multi-story buildings and bridges, wherein the geometrical center of the apparatus can be used as the control point by simply leveling the instrument without setting of special control points. The apparatus, being reasonably compact in structure, simply operable and portable, is widely applicable to engineering survey, academic research, educational training and practice, as well as solution of practical engineering problems in industrial and mining enterprises and civil construction.
Owner:CHINA UNIV OF MINING & TECH
Template library based rapid modelling method for transformer substation
InactiveCN107025323AImprove efficiencyHigh precisionSpecial data processing applications3D modellingPoint cloudTransformer
The invention discloses a template library based rapid modelling method for a transformer substation. The method comprises steps as follows: transformer substation information point cloud data are acquired by a 3D laser scanner; a point cloud model is obtained through data preprocessing; a detailed equipment model represented by CAD models and a 3D landscape model are established through detailed modelling, and a model library is formed through mapping and organization by a management system; overall layout of the transformer substation is established, repeated structure detection is performed, and a mode primary subgraph of the transformer substation is obtained through extraction; on the basis of the established model library, the point cloud model and the corresponding CAD model in the model library are subjected to template fitting with a shape retrieval method, and a CAD model with the maximum similarity to the point cloud model is output; through a registration and calling mode, rapid reestablishment is realized; a 3D overall model of the transformer substation is obtained by fusing the detailed equipment model and the 3D landscape model. The method has the benefits as follows: rapid reestablishment of the transformer substation model is realized, and the modelling efficiency is greatly improved while the model accuracy is guaranteed.
Owner:NARI INFORMATION & COMM TECH
Coal underground gasification combustion space area mapping system and mapping method thereof
PendingCN107462222AKnow the actual shapeSurveyPicture taking arrangementsThermodynamicsGraphics workstation
The invention discloses a coal underground gasification combustion space area mapping system and a mapping method thereof and belongs to the technical field of mine surveying and mapping. According to the coal underground gasification combustion space area mapping system and the mapping method thereof, a driving device is utilized to push a 3D laser scanner, a dual camera sensor and an industrial endoscope into combustion space areas through vertical holes, the combustion space area near each vertical hole are scanned through laser, laser collection, data transmission of an industrial switch and imaging of a graphic workstation are performed through the dual camera sensor, so that the mapping of internal shapes of the combustion space areas is completed, actual shapes of the combustion space areas inside a coal seam are learnt about visually, various technical parameters of a well drilling type underground coal gasification technology are checked, and theoretical support is provided for stability and continuity in the underground coal gasification process.
Owner:XINJIANG GUOLIHENG CLEAN ENERGY TECH CO LTD
Digitized design and 3D printing method for individualized ankle fracture brace
ActiveCN106113497AAvoid remakingReduce air permeabilityMedical simulationDetails involving processing stepsPersonalizationPatient compliance
The invention discloses a digitized design and 3D printing method for an individualized ankle fracture brace. The method comprises the following steps of (1) acquisition of limb laser three-dimensional scanning point cloud data; (2) packaging, smoothing and thickening treatment of the point cloud data; (3) brace hollowing out, button connecting and lockable characteristic design; and (4) 3D printing of the brace. The individualized ankle fracture brace has the following advantages that (1) compared with a plaster bandage, experience and technical requirements for a producer are relatively lowered; (2) suffering of a patient for repeated changing of plaster in the treatment process is relieved; (3) data are precisely extracted according to different physical characteristics and damage situations of injured limbs of patients by use of a 3D laser scanner; (4) the brace can be manufactured by adoption of materials better than plaster in transmissivity, and dynamic X-ray observation of fracture healing situations is facilitated; and (5) in the manufacturing process, a model is hollowed out, so that the brace is made lighter in weight, the air permeability is good, the comfort degree is high, and higher patient compliance is achieved compared with the massive plaster.
Owner:SOUTHERN MEDICAL UNIVERSITY
Target object motion monitoring system and method
PendingCN108594245ARealize motion measurement functionImprove versatilitySatellite radio beaconingElectromagnetic wave reradiationObject motionPoint cloud
The invention discloses a target object motion monitoring system and method. The monitoring system comprises an industrial personal computer, a binocular camera, a 3D laser scanner and a GNSS / INS combined navigation module, and the industrial personal computer is connected with the binocular camera, the 3D laser scanner and the GNSS / INS combined navigation module and used for fusion processing ofbinocular visual data, laser point cloud data and measurement data of the GNSS / INS combined navigation module and real-time providing of relative position and posture of a target relative to the camera and absolute position and posture of the target relative to the ground. The target object motion monitoring system and method has advantages that noncontact recognition and measurement of the targetare realized, and accordingly application scene limitation is greatly lowered, and universality in target motion monitoring is improved; further, due to noncontact measurement, influences on the monitoring system on normal operation of the target are greatly reduced; in addition, the system does not move along with the target and is insusceptible to cable power supply or wireless communication, so that complexity in system mounting is greatly reduced while stability in operation is improved.
Owner:CATHAY NEBULA SCI & TECH CO LTD
Complex deep foundation pit monitoring system and method based on BIM + 3D laser scanning technology
PendingCN110188505ALive viewEasy to showcase applicationsGeometric CADDesign optimisation/simulationEarly warning systemMonitoring system
The invention provides a complex deep foundation pit monitoring system and method based on a BIM + 3D laser scanning technology. The monitoring system comprises a 3D laser scanning system, a BIM system and a monitoring system. The 3D laser scanning system and the BIM system are respectively connected with the monitoring system; the 3D laser scanning system comprises a 3D laser scanner and is usedfor acquiring a real point cloud model of the deep foundation pit; the BIM system comprises a drawing import unit which is used for reading drawing information of the deep foundation pit and obtaininga three-dimensional BIM model of the deep foundation pit; the monitoring system is used for conducting real-time remote monitoring on the deep foundation pit on site and comprises a cloud platform system and an early warning system. And the cloud platform system is connected with the 3D laser scanning system, the BIM system and the early warning system. According to the method, the optimized BIMsystem and the 3D laser scanning technology are adopted for modeling, a web platform is used for achieving the visualization function of the model, and real-time monitoring and remote monitoring of the complex deep foundation pit are achieved.
Owner:CHINA CONSTR SEVENTH ENG DIVISION CORP LTD
3D laser scanner and method for acquiring 3D information
The invention relates to the technical field of scanning equipment, in particular to a 3D laser scanner. The 3D laser scanner comprises a bracket, an industrial camera, a linear laser, and a power source. The industrial camera and the linear laser are arranged on the bracket. The power source is in transmission connection with the bracket, and is used for driving the industrial camera and the linear laser to coaxially and synchronously rotate in the horizontal and / or vertical direction(s). The linear laser is used for emitting laser to the surface of a target to be measured. The industrial camera is used for acquiring laser reflected from the surface of a target to be measured. The 3D laser scanner combines the linear laser and the industrial camera. The linear laser emits laser to the surface of the target to be measured, and the industrial camera acquires a laser image. The industrial camera and the linear laser can synchronously rotate in the horizontal and vertical directions. Thus, a whole space can be scanned, and 3D data of the whole space is obtained finally. The 3D laser scanner has high precision, is simple to operate, and is suitable for indoor space scanning reconstruction. The invention further relates to a method for acquiring 3D information.
Owner:SHENZHEN GUANGTIAN ROBOT CO LTD
Method For Calibrating Laser Scanners To A Container Transportation Crane
The invention relates to a method for calibrating 3D laser scanners (20). The laser scanner is fixed on a support structure (12) of a crane used for container transportation, so that the containers (18) can be scanned in a working zone of the crane. The calibration includes at least one scanning of a calibrator (24) having ISO container features. The calibrator has a calibration mark (26) and can carry recognition and positioning during a scanning process. The method measures movement offset of at least one laser scanner relative to the support structure if the movement offset is not known. The crane is controlled, so that the calibrator can be caught and brought to different predetermined heights above the ground (8) and the scanning of the calibrator is performed through at least one laser scanner. The rotation offset of the at least one laser scanner (20) relative to the support structure (12) can be measured with the scanning result and the movement offset.
Owner:SIEMENS AG +1
Full-automatic door panel painting equipment and method
PendingCN109433469AImprove spraying effectNo dead angle sprayingSpray boothsEngineeringSocial effects
The invention discloses full-automatic door panel painting equipment, and further discloses an automatic door panel painting method. The full-automatic door panel painting equipment comprises a feeding machine, a spray booth, a conveyor, a drying room, a discharging machine and a main controller. The feeding machine is used for conveying door panels to be painted into the spray booth. The spray booth is used for spraying the door panels to be painted. The conveyor is used for conveying painted door panels to the drying room. The drying room is used for drying the painted door panels. The discharging machine is used for transporting the dried door panels out of the drying room. The spray booth is internally provided with spray guns, a 3D laser scanner and a painting position, a pair of door-turning machines is arranged at both ends of the painting position, and the spray guns includes the large spray gun and the small spray gun. The automatic door panel painting method comprises the steps that the positioned door panels are first scanned by the 3D laser scanner, a painting route is planned, the small spray gun is used for accurately spraying the uneven or engraved positions, and then the large spray gun is used for comprehensively spraying the flat parts. The full-automatic door panel painting equipment is high in running speed, good in spraying effect and large in benefit improvement, pollution is minimized, and a good social effect is achieved.
Owner:龙口欧德珑精密机械制造有限公司
Deformation monitoring method realizing timely alarm for danger area
ActiveCN107504914ABreak outEasy accessUsing optical meansRadio wave reradiation/reflectionDeformation monitoringComputer vision
The invention discloses a deformation monitoring method realizing timely alarm for a danger area, which relates to the field of deformation monitoring of dams, slopes, bridges, railways, highways and hillsides. The method includes the following steps: S1, installing equipment; S2, marking corner reflectors; S3, obtaining foundation SAR deformation information and laser scanner DEM information; S4, extracting the coordinates of the corner reflectors from the foundation SAR deformation information and DEM information; S5, unifying the coordinate systems of foundation SARs and 3D laser scanners; and S6, fusing a foundation SAR deformation displacement diagram and a 3D laser scanner DEM diagram. The invention aims to overcome the problem that it is difficult to predict the disaster in a danger area through the existing deformation monitoring method, and provides a deformation monitoring method realizing timely alarm for a danger area. Through the deformation monitoring method of the invention, the actual positions corresponding to largely deformed points in the foundation SAR displacement diagram can be acquired quickly and accurately, and the disaster in a danger area can be predicted in time.
Owner:安徽威德萨科技有限公司
3D laser scanner spherical target of installation positioning device and using method thereof
ActiveCN105651160AQuick measurementReduce workloadUsing optical meansDifferential measurementFast measurement
The invention discloses a 3D laser scanner spherical target of an installation positioning device and a using method thereof. A GPS antenna is detachably installed above a spherical target of a 3D laser scanner, and the center of the GPS antenna is coaxial with the center of the spherical target. The 3D laser scanner spherical target and the GPS are integrated. Differential measurement is performed through a GPS receiver on a base station in a measurement area and a GPS receiver on the target to get the center coordinates of the spherical target. Point cloud block splicing and coordinate system conversion are carried out by using the center coordinates of a common target scanned by adjacent scanning sites. Direct and quick measurement of the center coordinates of the 3D laser scanner spherical target is realized. Moreover, there is no need for inter-vision between the GPS base station and the spherical target measuring station, field observation is greatly facilitated, and the work efficiency is improved.
Owner:北京浩宇天地测绘科技发展有限公司
Laser scanning based water surface detection method
InactiveCN103512636ASolving the key challenge of detecting interferenceMachines/enginesLevel indicatorsDiffuse reflectionMirror image
The invention discloses a laser scanning based water surface detection method and relates to the field of robots. A laser scanner conducts 3D laser scanning on the front at a relatively small level inclination angle alpha, the reflectivity of the water surface is lower than 28%, the reflectivity of the ground is remarkably greater than 28% and no specular reflection phenomenon exists within the detection range of the laser scanner. Meanwhile, if a water-side upright object exists within the detection range of the laser scanner, then a laser beam is reflected because of the specular reflection of the water surface, irradiates the surface of the water-side upright object and generates diffuse reflection on the surface of the water-side upright object to allow partial energy to be received by the laser scanner, then the 3D laser scanner can obtain a real image of the water-side upright object, and a virtual image of the water-side upright object subjected to the specular reflection of the water surface, wherein the real image of the water-side upright object and the virtual image of the water-side upright object are identical in shapes and different in distances. Therefore, the water-side upright object can be judged so as to judge the edge of the water surface. The laser scanning based water surface detection method is simple and fast, and can be used to accurately distinguish the water surface and the surrounding environment under any light conditions outdoors to achieve detection of the water surface.
Owner:JIANGSU UNIV
Coupling apparatus for positioning components in workpiece interior and method of using same
ActiveUS8256480B1Accurately mounting and couplingAccurate melting and mountingControlling laminationGripping headsControl signalMechanical engineering
A component coupling apparatus for mounting a component to an internal contact surface of a hollow workpiece which includes a positioning unit and at least one component holding unit. The component positioning unit includes a processor having memory which pre-stores data representative of a workpiece target feature and an access opening therein. The component positioning unit includes a 3D laser scanner / digitizer which is movable to scan the exterior surface of the workpiece and identify the axial centers of the access opening and target feature, and calculate the distance and / or directional vector therebetween. The component holder unit includes component holder supported on a support arm. The component holder releasably secures the component to be joined to the workpiece, and is sized for insertion at through the access opening to move the component into alignment with the contact surface. The processor controls movement of the carrying arm in directional movement in relation to the scanned distance between the access opening and the target feature, by providing control signals to a robot used to selectively activate position the component holder in response to identified and triangulated relative distances between the access opening and target features.
Owner:SPM AUTOMATION CANADA
Laser-based automatic container grabbing system and method on container truck lane
The invention discloses a laser-based automatic container grabbing system and method on a container truck lane. The system comprises a controller, a 3D laser scanner, an industrial personal computer and an LED display screen, wherein the 3D laser scanner, the industrial personal computer and the LED display screen are connected with the controller. The industrial personal computer is connected with the 3D laser scanner, and the controller is connected with a cart PLC control system. The outline of the center section of a container truck is scanned through the 3D laser scanner, the outline datapair of the center section of the container truck is obtained, container truck alignment guide information is calculated and obtained through the controller and is sent to the LED display screen andrapid and accurate alignment of the container truck is convenient; and through high-precision outline scanning of the 3D laser scanner and calculation of the industrial personal computer, high-precision three-dimensional locating information of the container truck is obtained and is sent to the cart PLC control system, the postures and positions of a trolley and a lifting tool can be adjusted conveniently, and it is ensured that the lifting tool can automatically grab containers safely and accurately.
Owner:CATHAY NEBULA SCI & TECH CO LTD
Coordinate transformation tool and method of 3D laser scanning data based on high-precision point measurement
ActiveCN106017319AFix placement issuesGuaranteed accuracy requirementsUsing optical meansTotal stationPrism
The invention relates to a coordinate transformation tool and method of 3D laser scanning data based on high-precision point measurement. The tool comprises a substrate, industrial total-station spherical prisms, a 3D laser scanner spherical target, prism supporting seats and a target supporting seat. The transformation tool establishes a lab coordinate system, an industrial total station and the industrial total-station spherical prisms of the tool are used for measurement, and a 3D laser scanner and the 3D laser scanner spherical target of the tool are used for measurement, so that the problem in placing the prisms and the target as well as the problem in coordinate transformation is solved; and further measurement data of the industrial total station is fused with that of the 3D laser scanner to improve the precision of data of the 3D laser scanner. An industrial detection means in which the precise spherical center point is fit to obtain the lab coordinate system, and precision requirement for lab coordinates is ensured.
Owner:BEIJING UNIVERSITY OF CIVIL ENGINEERING AND ARCHITECTURE
Random detection method of assembling quality of assembling segment rings of shield tunnel
ActiveCN109612406ASolve unsolvable problemsGuaranteed assembly qualityUsing optical meansPoint cloudLong axis
The invention discloses a random detection method of the assembling quality of assembling segment rings of a shield tunnel. The random detection method comprises the steps that the assembling qualityof the N assembling segment ring of the shield tunnel is detected through the opposite positions of a 3D laser scanner and a plurality of target sets, obtaining of point cloud data, point cloud data fitting splicing, point cloud data processing, and assembling quality detection data calculation. The azimuth angles and length values of elliptical long shafts and short shafts of the segment rings which are just assembled to be formed can be measured under the conditions that the construction space of an operation area of a shield segment assembling machine is narrow and intervisibility is not achieved, the assembling quality control result of the assembling segment rings can be mastered in the first time after the assembling segment rings are assembled and before synchronous grouting, the assembling quality is controlled from a source, a constructor can detect the ovality of the assembling segment rings, circular seam slab end faulting, the circular seam width, longitudinal seam slabend faulting and the longitudinal seam width in a to-be-detected area without making direct contact with the assembling segment rings, the detection environment is safe, and detection data are accurate.
Owner:CHINA RAILWAY TUNNEL GROUP CO LTD +1
Tunnel section and boundary scanning and detecting device and method
PendingCN110006396AEasy to set upImprove detection accuracyUsing optical meansProfile tracingRectangular coordinatesData acquisition
The invention relates to a tunnel section and boundary scanning and detecting device. The device comprises a 3D laser scanner for acquiring line section outline data in real time, an inertial navigation system fixedly connected with the 3D laser scanner and used for measuring pitching, rolling and heading angles of the moving 3D laser scanner in a spatial rectangular coordinate system in real time, a GPS antenna, an encoder, a data collection module collecting and storing data of the 3D laser scanner, the inertial navigation system, the GPS and the encoder in real time, and a data processor for acquiring data collected by the data collection module, processing the data and generating a 3D point cloud model, so as to analyze whether tunnel outline deformation and boundary meet design requirements. The invention further relates to a tunnel section and boundary scanning and detecting method. Through adoption of the method and device, the tunnel section and boundary are detected highly precisely in high-speed motion state, and the demand of tunnel general inspection of running high-speed railway is met.
Owner:CHINA RAILWAY ENG CONSULTING GRP CO LTD +1
High-flux collection system for phenotypic data of field crops
InactiveCN106403820AReduce workloadGuaranteed collectionMaterial analysis by optical meansUsing optical meansCollection systemDrive motor
The invention discloses a high-flux collection system for phenotypic data of field crops. The system comprises a main structure member, a driving motor, a driving chain, wheels, a control box, a battery, a remote control receiver, a turning motor and a sensor module; the wheels include a width adjusting wheel, a fixed wheel and a directive wheel; the sensor module comprises a 3D laser scanner, a high-spectral camera, a high-resolution CCD camera and a thermal infrared camera; the width adjusting wheel, the fixed wheel and the directive wheel are mounted in the lower ends of three end points of the main structure member respectively; the driving motor is connected with the directive wheel via the driving chain; and the turning motor is mounted in the upper end of the directive wheel. The 3D laser scanner, the high-spectral camera, the high-resolution CCD camera and the thermal infrared camera are integrated, data of multiple sources can be obtained simultaneously, multi-source phenotypic, physiological and biochemical data of the crops can be obtained, the workload of workers is reduced greatly, high-precision high-efficiency phenotypic data collection of the crops is ensured, and the using effect is good.
Owner:INST OF BOTANY CHINESE ACAD OF SCI
Multi-layer sliding zone landslide and slide-resistant pile model test system and method
ActiveCN111719599AEven by forceReal-time monitoring of coordinated deformationFoundation testingJackscrewClassical mechanics
The invention provides a multi-layer sliding zone landslide and slide-resistant pile model test system. The system comprises a model box, a landslide monitoring device and a movable loading device. The model box is internally provided with a simulated slide bed, a simulated landslide body and a simulated slide-resistant pile. The simulated landslide body is internally provided with multiple layersof simulated sliding zones. The simulated slide-resistant pile is buried in the simulated landslide body. The landslide monitoring device comprises micro resistor type strain gages, micro resistor type earth pressure cells, flexible inclinometers and a 3D laser scanner which are arranged in the simulated landslide body. The movable loading device comprises a lifting rod, hydraulic jacks and a stretchable bearing plate. The rear ends of the hydraulic jacks are movably connected with the lifting rod, and the front ends of the hydraulic jacks are movably connected with the stretchable bearing plate. The front end face of the stretchable bearing plate is attached to the rear end face of the simulated landslide body. The multi-layer sliding zone landslide and slide-resistant pile model test system has the beneficial effects that the adjustable vertical height of the stretchable bearing plate is consistent with the thickness of the corresponding borne single-layer landslide body, the layering thickness of the landslide body can be changed at will for load applying, and accurate simulation is realized.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)
Slurry shield earthwork measurement management method
ActiveCN106979747AEfficient managementAvoid dischargeUsing optical meansSpecific gravity measurementNuclear radiationMonitoring system
The invention discloses a slurry shield earthwork measurement management method. According to the method, the muck volume is analyzed through a 3D laser scanner, the volume of slurry drained by separation equipment and specific gravity change are measured through a slurry measurement system, through mathematics conversion, soil disposal amount can be acquired without utilizing a nuclear radiation densitometer, a problem of large use difficulty of special equipment because of national control is solved, the measurement management method is taken as beneficial supplement of a shield construction monitoring system, a high-level automation monitoring and measurement result is displayed in real time, and an operator is facilitated to effectively manage shield construction soil disposal conditions. The method is applied to the subway tunnel construction field.
Owner:GUANGZHOU MUNICIPAL ENG GROUP
Laser cladding repair equipment and method for irregular curved surfaces of Invar alloy molds
InactiveCN111058040AExtended service lifeHigh bonding strengthMetallic material coating processesInvar alloyControl system
The invention relates to laser cladding repair equipment and method for irregular curved surfaces of Invar alloy molds. Aiming at unqualified or invalid products in the production, manufacturing and use processes of Invar alloy molds, the curved surfaces of the unqualified or invalid Invar alloy molds are repaired in combination with reverse engineering and a laser cladding technology, so that notonly is the production and manufacturing cost reduced, but also the service life of the molds is prolonged. The repair equipment comprises a 3D laser scanner, a robot with a coaxial powder feeding nozzle, a laser, a laser water cooler, an adjustable powder feeder, a monitor, a control system and the like. The repair method comprises the following steps: (1) performing 3D scanning to obtain a to-be-restored region model; (2) designing a cladding scheme; (3) carrying out a cladding experiment for repairing; and (4) checking the size of the repaired part.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Mobile landslide body deformation monitoring apparatus and method
InactiveCN106679579AEnables non-contact deformation monitoringMeet the deformation monitoring requirementsUsing optical meansDeformation monitoringLandslide
The invention relates to a mobile landslide body deformation monitoring apparatus. The apparatus includes a mobile carrier, a 3D laser scanner, cameras, a GNSS moving station, a GNSS base station, a computer, a GPRS wireless transmitting receiving end and a GPRS wireless transmitting emitting end. The 3D laser scanner and the GNSS moving station are disposed at the top of the mobile carrier. The cameras are mounted at the top of the 3D laser scanner. Four cameras are provided herein, among which 3 cameras are horizontally disposed at an angle of 120 degrees and one camera is disposed vertically. The computer is disposed on the mobile carrier. The GNSS moving station and the 3D laser scanners are connected to the computer. The GPRS wireless transmitting receiving end is connected to the mobile carrier. The GNSS base station is disposed a certain distance from the mobile carrier. The GPRS wireless transmitting emitting end is disposed on the GNSS base station. The invention also relates to a mobile landslide body deformation monitoring method. According to the invention, on the basis of a mobile measuring system, the apparatus and the method research the mobile monitoring system so as to enable the precision of a system to meet the requirements of deformation monitoring, also can achieve non-contact deformation monitoring, overcome the difficulty of arrange monitoring points due to abrupt landslide bodies.
Owner:POWER CHINA KUNMING ENG CORP LTD
Method of fast acquiring 3D information of substation by using 3D laser scanner
InactiveCN109035399AHigh precisionAccuracy is not affectedImage enhancementImage analysisPoint cloudLandscape model
The invention provides a method for quickly acquiring three-dimensional information of a substation by using a three-dimensional laser scanner, includes such steps as: step (1), scanning internal equipment and external structure of substation by three-dimensional laser scanner, obtaining initial point cloud data of internal equipment and external structure information of substation, and obtaininggeographic position information data of substation by GIS, obtaining initial point cloud data of internal equipment and external structure information of substation by three-dimensional laser scanner,and obtaining geographic position information data of substation by GIS; step (2), denoising, smoothing and storing the initial point cloud data and the geographic position information data in the server, extracting the processed point cloud data and the geographic position information data from the server respectively, constructing a 3D fine model and a 3D landscape model of the substation. Theinvention has the advantages of high collection efficiency and high data precision: taking photographs of substation targets while collecting a large amount of point cloud data by using a three-dimensional laser scanner, and obtaining texture data to be used as texture map after modeling, thus shortening the data collection time and obviously improving the data collection efficiency.
Owner:SHANGHAI HUACE NAVIGATION TECH
Intelligent control system and method for scraper reclaimer
ActiveCN111285127ARealize intelligent unmanned operationHigh control precisionLoading/unloadingAutomatic controlReclaimer
Owner:BERIS ENG & RES CORP
Tunnel arch crown settlement and peripheral convergence monitoring method
InactiveCN104533520APrediction freeEasy to find in timeMining devicesHeight/levelling measurementSpring scaleEngineering
The invention provides a tunnel arch crown settlement and peripheral convergence monitoring method. The tunnel arch crown settlement and peripheral convergence monitoring method comprises installing a rope free of elastic deformation, wherein one end of the rope is fixed on an arch foot arranged at one end of every tunnel section, the other end of the rope is tied on an electric spring scale after calibration, the spring scale is located on an arch foot arranged at the other end of every tunnel section, and the middle portion of rope penetrates a tunnel circular arch; pre-applying the initial force when the monitoring is started to enable an initial reading to be displayed on the electric spring scale, pulling the rope to enable the initial reading on the spring scale to tend to be stable and recording; repeating the above steps and deploying the same way of monitoring on the plurality of sections; performing continuous observation on readings of the electric spring scale during tunnel construction, suspending the construction if the readings are changed, performing repeated observation on the tunnel sections through a full-drilling machine or a three-dimensional laser scanner and performing real-time treatment when problems are found. A tunnel arch crown settlement and peripheral convergence monitoring device is simple, free of model prediction, small in calculation amount and free of technical difficulties and workers can timely find dangerous situations conveniently.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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