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92results about How to "Avoid positioning deviation" patented technology
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Indoor and outdoor integrated high-precision positioning and navigation system as well as positioning method thereof
ActiveCN105526934AAvoid positioning deviationRealize precise controlNavigational calculation instrumentsSatellite radio beaconingUltra-widebandBroadband
The invention relates to the technical field of wireless communication networks, in particular to an indoor and outdoor integrated high-precision positioning and navigation system as well as a positioning method thereof. The system comprises a map data construction unit, an indoor ultra-wideband positioning and navigation unit, an outdoor BD / GPS positioning and navigation unit, an indoor and outdoor positioning data fusion unit, a central server unit and a terminal display unit, wherein the indoor ultra-wideband positioning and navigation unit is used for performing indoor space positioning in a ranging mode, the outdoor BD / GPS positioning and navigation unit is used for performing outdoor space positioning through a Beidou satellite navigation / GPS satellite navigation system, the indoor and outdoor positioning data fusion unit is used for judging whether a positioning label is indoor or outdoor and can intelligently switch positioning modes according to the judgment result and fuse indoor and outdoor positioning manners. Problems that positioning and navigation of personnel and objects in a large-range area are difficult to realize, not high in precision and the like at present are solved, and large signal interference and positioning deviation caused by mutual interference among signals can be avoided in the ranging mode.
Owner:ZHENGZHOU LOCARIS ELECTRONICS TECH CO LTD
UWB-based mine unmanned locomotive high accuracy positioning system and method
The invention discloses a UWB-based mine unmanned locomotive high accuracy positioning system and method; the system comprises a plurality of UWB label node Tags, a UWB anchor node Anchor, underground communication AP equipment and a beacon device, wherein said four parts are connected through wireless or wired signals; the method does not directly locate the locomotive position, and comprises the following steps: 1, range finding, allowing a range finding node to utilize the features that narrow pulse signal transmission has very strong anti-interference ability, thus preventing positioning errors caused by underground dust accumulation and magnetic field disorder; 2, calculating coordinates in a route, using the least square algorithm to solve node coordinates according to inter-point accurate distances measured in the first step; 3, allowing the monitoring center to finally determine the locomotive position in the mine according to the relative position between the beacon device position in the route and the locomotive coordinates, wherein the positioning accuracy reaches 0.1m.
Owner:HEFEI UNIV OF TECH
Geometric constraint-based high-resolution optical satellite staring image registration method
ActiveCN107705329AAchieve high-precision registrationHigh precision registrationImage enhancementImage analysisPoint cloudDigital surface
The invention discloses a geometric constraint-based high-resolution optical satellite staring image registration method. The method comprises the steps of S100, building a free network adjustment directional model of images by utilizing a rational function model of additional image space error compensation; S200, based on the free network adjustment directional model, performing dense matching ona stereoscopic image pair with an optimal rendezvous condition in the images to obtain coordinates of dense homonymy points; S300, generating dense point cloud data, performing gross error point deletion on the dense point cloud data, and generating digital surface model data; and S400, based on the free network adjustment directional model and DSM data, performing geometric correction on the images in sequence. By utilizing geometric locating consistency, high-precision registration of high-resolution optical satellite multi-angle staring sequence images is realized; the multi-angle staringsequence image registration problem caused by satellite platform control inaccuracy and attitude measurement inaccuracy is solved; and a high-precision data basis can be provided for subsequent application.
Owner:WUHAN UNIV
Method and device capable of controlling playing progress on touch control equipment and touch control equipment
InactiveCN103513918AImprove data interaction performanceAvoid repeatedly adjusting the playback progressInput/output processes for data processingHuman–computer interactionControl equipment
The invention relates to a method and device capable of controlling playing progress on touch control equipment and the touch control equipment. The method capable of controlling the playing progress on the touch control equipment comprises the steps that a valid touch area used for controlling the playing progress is determined according to the left / right hand operation mode of the touch control equipment; a touch event is sensed, wherein a starting touch point of the touch event is located in the valid touch area; the playing progress is synchronized based on an end touch point of the touch event. Correspondingly, the device capable of controlling the playing progress on the touch control equipment comprises a determining unit, a sensing unit and a synchronization unit. The method and device capable of controlling the playing progress on the touch control equipment and the touch control equipment have the advantage that the data interaction performance of the touch control equipment can be improved.
Owner:SPREADTRUM COMM (SHANGHAI) CO LTD
In-situ measurement method and device for radial run-out of grinding wheel
ActiveCN105690258APrecise on-site measurementAccurate beatingMeasurement devicesGrinding feed controlMeasurement deviceMeasurement point
The invention relates to an in-situ measurement method for radial run-out of a grinding wheel, and an in-situ measurement device for radial run-out of the grinding wheel. According to the in-situ measurement method and device for radial run-out of the grinding wheel, the radial run-out of the grinding wheel and the phase angle of radial run-out on the circumference of the grinding wheel are measured at the same time, and therefore run-out of different positions on the surface of the grinding wheel can be conveniently and accurately analyzed; and furthermore, in-situ measurement is achieved, positioning deviation caused by disassembling and assembling of the grinding wheel is avoided, and precise in-situ measurement of radial run-out of the grinding wheel is efficiently achieved. By means of the lever principle, the radial run-out change of the grinding wheel is converted into rotation displacement of a lever through a contact head and detected by a displacement sensor, the distance between a measurement point of the displacement sensor and the starting end of the lever is larger than the distance between the contact head and the displacement sensor, and therefore radial run-out of the grinding wheel is measured after being amplified, the measurement difficulty is lowered, and precise in-situ detection of trace radial run-out of the precise grinding wheel is achieved.
Owner:HUAQIAO UNIVERSITY
Unmanned aerial vehicle (UAV) GPS spoofing detection method
PendingCN110308464AImplement spoof detectionAvoid positioning deviationSatellite radio beaconingGps spoofingInformation data
The invention discloses a UAV GPS spoofing detection method, and belongs to the technical field of UAV positioning. When a UAV U needs to determine whether spoofing attack occurs in a UAV formation flight state, the UAF sends a positioning request to a ground state and other group members; after receiving the request, the other UAVs upload position information data packages with time stamps to theground station, and the present position of the UAV V can be resolved if three UAVs or more in the group make response; and when the number of responded UAVs is lower than 3, the target UAV is positioned and tracked in the area in real time by a related angle and angle change rate combined method. The UAV position information is calculated actively in real time and compared with positioning information, not proved, received from a GPS receiver, so that attack of the group member the moment that the UAV system suffers GPS spoofing attack, and safe flight of the UAV is effectively ensured.
Owner:XIDIAN UNIV
Iron shoe remote monitoring and management system and method thereof
PendingCN108001477AAvoid positioning deviationRealize information managementRailway signalling and safetyTrack-braking member co-operationInformatizationEngineering
The invention provides an iron shoe remote monitoring and management system and a method thereof, wherein the iron shoe remote monitoring and management system comprises an intelligent iron shoe, a mobile terminal and a central control management device, wherein the mobile terminal is connected with the intelligent iron shoe, and the central control management device is connected with the mobile terminal; the central control management device comprises an information collection assembly and a monitoring platform assembly, wherein the information collection assembly is connected with the mobileterminal in a wireless manner and the monitoring platform assembly is connected with the information collection assembly; and after the intelligent iron shoe is mounted and put on a rail, the information collection assembly obtains positioning information of the mobile terminal and transmits the positioning information to the monitoring platform assembly. The iron shoe remote monitoring and management system has the advantages that the positioning result can be more accurate through the positioning of the intelligent terminal, the positioning accuracy can be improved, the informatization management of the intelligent iron shoe is realized, the safe and stable operation of anti-slip related equipment is ensured and the safeties of a stopping rolling stock, other railway equipment and personnel are effectively guaranteed.
Owner:伊军庆 +1
Method for co-bonding embedded copper strip and composite prepreg
The invention discloses a method for co-bonding an embedded copper strip and a composite prepreg. The embedded copper strip and a glass fiber-reinforced resin matrix composite material are co-bonded through a vacuum bag-autoclave molding technology. In the prepreg paving process, the copper strip is bonded to the laid and cured prepreg through a binder and the prepreg is paved and cured in two processes so that the prepreg is formed. The method bonds the pre-cured prepreg and the copper strip and solves the problem that the cured prepreg has no rigidity so that the copper strip is difficult tofix and the prepreg easily deforms in the copper strip bonding process.
Owner:CHENGDU AIRCRAFT INDUSTRY GROUP
Indoor positioning method and system based on Bluetooth beacon group
InactiveCN108712720AAvoid positioning deviationReduce long-distance driftParticular environment based servicesLocation information based serviceBeaconBluetooth
The invention discloses an indoor positioning method and system based on a Bluetooth beacon group. The method comprises the steps of acquiring beacon data output, according to a positioning point, byeach Bluetooth beacon in each indoor bean group, wherein the indoor space is divided into multiple spatial areas, and Bluetooth beacons in the same spatial area are in the same beacon group; accordingto the beacon data output by each Bluetooth beacon, determining a beacon group of a spatial area in which the positioning point is; and according to the beacon data output by the Bluetooth beacon ofthe determined beacon group, determining coordinates of the positioning point. Through adoption of the method and system, large positioning deviation is prevented, and the user experience is improved.
Owner:BOE TECH GRP CO LTD
New method for mapping corn S-type cytoplasm male sterility fertility restoring gene Rf3
InactiveCN103416297AAvoid positioning deviationSave human effortMicrobiological testing/measurementPlant genotype modificationGene mappingPhenotypic trait
The invention belongs to the technical field of corn gene mapping, in particular to a new method for mapping a corn S-type cytoplasm male sterility fertility restoring gene Rf3. According to a conventional method for mapping a qualitative character gene, a backcross or selfing population is constructed, the gene type of an individual is inferred through phenotype identification, molecular marker detection is performed, and the position of the gene is determined through two-point and three-point tests. When the Rf3 gene is mapped with the conventional method, the phenotype identification is affected by human and environmental factors easily, the workload is large and the size of the population to be mapped is limited. The mapping method aims to overcome the defects of the conventional method for mapping the Rf3 gene and does not need the phenotype identification. The new method is characterized in that due to the fact that the gene type of the utilized population to be mapped is already known, the phenotype does not need to be identified, a large population can be constructed, and enough recombined individuals can be found in one generation to fine map the Rf3 gene. The method for mapping the Rf3 gene is effective and promotes three-line sterility seed production by the utilization of the Rf3 gene in production.
Owner:INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI
Equipment positioning method and apparatus
ActiveCN106413084AAvoid positioning deviationHigh precisionLocation information based serviceBlack listMAC address
Owner:BEIJING SANKUAI ONLINE TECH CO LTD
Associated address acquisition method and device, electronic equipment and storage medium
ActiveCN111382212AReduce mistakesAvoid confusionCharacter and pattern recognitionNatural language data processingComputer hardwareSoftware engineering
An embodiment of the invention relates to the field of information technology processing, in particular to an associated address acquisition method, an associated address acquisition device, electronic equipment and a storage medium. The associated address acquisition method comprises the following steps of: receiving a message or an instruction from a client; analyzing the message or the instruction through at least one processor to obtain a target address, wherein the target address comprises longitude and latitude information and text description; determining a spatial index code of the target address through at least one processor according to the longitude and latitude information; and determining an interest surface of the target address through the at least one processor according to the text description, wherein the associated address of the target address comprises the spatial index code and the interest surface. By adopting the associated address acquisition method and the associated address acquisition device of the invention, a more accurate associated address can be obtained.
Owner:RAJAX NETWORK &TECHNOLOGY (SHANGHAI) CO LTD
Leveling system of laser leveling instrument and debugging method thereof
InactiveCN101975587AAdjust and maintain verticalityAvoid positioning deviationMeasurement devicesLaser beamsMechanical engineering
The invention discloses a leveling system of a laser leveling instrument and a debugging method thereof. The leveling system comprises a main body, a first frame with two side walls parallel to the laser beam emitted from the laser leveling instrument and a first bubble pipe arranged on the first frame. A first projecting part is arranged outside a side wall of the first frame; the main body is provided with a first groove corresponding to the first projecting part; the side wall of the first groove is provided with penetrated screw holes; each screw hole is provided with a first adjusting screw and a first cock screw; the first adjusting screw and the first cock screw are matched to fix the first projecting part in the first groove; the other side wall of the first frame is provided with a first connecting hole; the main body is provided with a first screw hole corresponding to the first connecting hole; and the first screw passes through the first connecting hole and is connected with the first screw hole. The invention effectively ensures that the sensor members can be positioned on different positions and guarantee the positioning precision, reduces the debugging time and improves the production efficiency.
Owner:NORTHWEST INSTR SHANGHAI
Moving object position estimation and prediction method, device, equipment and medium
ActiveCN114137587AQuick fixImprove real-time performanceSatellite radio beaconingAlgorithmObservation data
The embodiment of the invention provides a position estimation and prediction method of a moving object. The method comprises the steps that model parameters of a position prediction model are updated according to a position data sequence of a moving object at the current sampling moment, and the position data sequence comprises position observation data of a plurality of continuous sampling moments before the current sampling moment; determining position prediction data at the current sampling moment according to the position data sequence and the position prediction model after the model parameters are updated; determining position estimation data at the current sampling moment according to the position prediction data and the position observation data at the current sampling moment; and determining position prediction data at the next sampling moment according to position estimation data at the current sampling moment, the position data sequence and the position prediction model after the model parameters are updated, and entering iteration operation at the next sampling moment until the position prediction data of the moving object meets iteration ending conditions.
Owner:SOUTHWEST JIAOTONG UNIV
Single-station semi-automatic dynamic balance adjusting device
PendingCN109525086AReduce the effect of rotationReduce the effect of eccentricityCentering/balancing rotorsDynamic balanceElectric machine
The invention provides a single-station semi-automatic dynamic balance adjusting device comprising an elastic shock-absorbing seat, a support assembly, a driving assembly, a rotor clamp, and a controlmodule. The elastic shock-absorbing seat is formed by two fixation platforms that are installed and laminated by an elastic member. The support assembly includes two support bases with adjustable vertical heights and horizontal positions. The driving assembly includes a motor, a wheel group with the adjustable tension degree, and a belt. The rotor clamp is used for clamping and fixing a tested rotor. The control module is used for controlling the measuring process of the rotor and receiving and processing data during the testing process to obtain an imbalance point of the rotor. Therefore, the external vibration can be reduced or isolated for rotor measurement; the rotor is supported by a non-fixed way to reduce the influence on the rotor rotation by the fixation force, so that the dynamic balancing precision is improved; and since the rotor is driven by the belt, the eccentric effect on the rotor is reduced by the direct motor connection. With the rotor clamp, the rotor is clamped and fixed directly after rotor testing completion, so that a problem of the imbalance point positioning deviation after rotor movement is solved.
Owner:深圳至汉装备科技有限公司
Pipe fitting weld joint polishing equipment
InactiveCN114161277AAutomatic detection of weld seam positionWide range of grindingGrinding carriagesBelt grinding machinesPipe fittingPolishing
The invention provides pipe fitting weld joint polishing equipment which is characterized by comprising polishing assemblies distributed at the inner end and the outer end of a polishing piece; the detection unit is arranged at the fixed end of the polishing assembly; the fixing unit is arranged at the side part of the detection unit; after the position of the welding seam is found by the detection unit in the rotating process of the grinding piece, the position of the grinding piece is locked through the fixing unit; the arc length between the first prediction assembly and the second prediction assembly is set to be equal to the effective length of the rack, and it is ensured that when the reverse wedge-shaped plate is inserted into the welding seam, the first grinding roller and the second grinding roller just make the upper end face and the lower end face of a grinding piece make contact; therefore, the welding seam position of the grinding piece can be automatically detected.
Owner:HUZHOU TEACHERS COLLEGE +1
Image information detecting method
InactiveCN104677906AReduce computationEffective correctionMaterial analysis by optical meansComputer visionStandard samples
Owner:MINGSHUO COMP (SUZHOU) CO LTD +1
Riveting device for pressing disk in cover assembly
Owner:WUHU DAJIE CLUTCH
Puncture operation robot device with breath following function
PendingCN111821001AAddress pull risksCompact structureSurgical needlesSurgical manipulatorsLinear motionPhysical medicine and rehabilitation
Disclosed is a puncture operation robot device with a breath following function. The puncture operation robot device comprises a vertical linear motion mechanism, a horizontal plane positioning mechanism, a puncture needle angle adjusting mechanism and a puncture needle tail end mechanism, wherein the vertical linear motion mechanism is in control connection with the horizontal plane positioning mechanism, and the horizontal plane positioning mechanism is in control connection with the puncture needle angle adjusting mechanism. The puncture needle angle adjusting mechanism is in control connection with the puncture needle tail end mechanism, and the puncture needle tail end mechanism comprises a breathing following assembly and a needle clamping assembly. Compared with the prior art, a puncture needle clamped by the needle clamping assembly is positioned through a multi-dimensional positioning mechanism, and the device has the advantages of being compact in structure, high in positioning precision and large in working range; the needle clamping assembly can meet the requirements of multi-needle puncture and multi-time puncture; and the breathing following mechanism can solve the traction risk caused by breathing or displacement of the patient. By the adoption of the robot, the defects of manual puncture and an existing puncture robot can be overcome, doctors are helped to conduct better operations, and the operation safety and success rate are improved.
Owner:ZHEJIANG JIANAIWEI MEDICAL TECH
Intelligent robot positioning system and method based on radio frequency technology
ActiveCN112699700AAvoid loss of positionAvoid positioning deviationRecord carriers used with machinesElectromagnetic wave reradiationRadarPositioning system
The invention relates to an intelligent robot positioning system based on a radio frequency technology. The system comprises a radio frequency tag, a high-frequency radio frequency transmitter, a high-frequency radio frequency receiver, a laser radar device and a processing and analyzing device, the processing and analyzing device is used for sending radio frequency information to each radio frequency tag through the high-frequency radio frequency transmitter when the intelligent robot is positioned, receiving tag information returned by the radio frequency tags through the high-frequency radio frequency receiver, and then determining the distance between the intelligent robot and each tag according to the tag information returned by the radio frequency tags. the processing and analyzing device is used for judging whether the distance between the intelligent robot and each label meets a boundary value or not, if so, determining that the intelligent robot is in a map boundary, and then detecting the environment through a laser radar device to obtain pose data of the intelligent robot. The problem that positioning is lost in similar scenes is avoided, and the situation that positioning deviates due to driving under the condition that the slope is too long is avoided.
Owner:福建汉特云智能科技有限公司
Automatic height-detecting and reaming integrated machine
ActiveCN105364498AAvoid positioning deviationReduce processing stepsOther manufacturing equipments/toolsIntegrated operationsMechanical equipment
The invention relates to the field of processing equipment of mechanical equipment, in particular to an automatic height-detecting and reaming integrated machine. The machine mainly comprises a machine frame, support columns, a baseplate, a feed conveying mechanism, a feeding mechanism, a height measuring mechanism, a moving and carrying mechanism, a reaming mechanism and a discharging mechanism, wherein the baseplate is arranged on the upper end surface of the machine frame; the support columns are arranged at the four corners of the machine frame; the feed conveying mechanism, the feeding mechanism, the height measuring mechanism, the reaming mechanism and a qualified product conveying mechanism are arranged on the base plate in sequence; and the discharging mechanism is vertically arranged between the reaming mechanism and the qualified product conveying mechanism. After the adoption of the structure, accurate feeding of material is realized through a visual positioning mechanism, integrated operation is realized through the combination of the height measuring mechanism and the reaming mechanism, the problem of positioning deviation caused by secondary clamping is avoided, processing procedures are reduced, the production efficiency is improved, and the labor cost is saved.
Owner:常州奇点智能制造有限公司
Boiler burner tangent circle positioning tool and method
PendingCN111380507AAvoid bending deformationAvoid Positioning EffectsActive open surveying meansLaser rangingEngineering
The invention provides a boiler burner tangent circle positioning tool and method. The boiler burner tangent circle positioning tool comprises a laser range finder, a leveling tool and a level gauge,wherein the leveling tool is located on the side surface of the laser range finder, the straight outer edge of the leveling tool is parallel to the axial direction of the laser range finder, and the inner edge of the leveling tool is connected with the laser range finder through a connecting piece; and the level gauge is fixedly arranged on the laser range finder or the leveling tool. The beneficial effects of the invention are that the laser range finder is used for measuring the linear distance and replacing a steel wire commonly used in the prior art, a problem of positioning deviation caused by the bending deformation of the steel wire under the action of gravity in the prior art can be avoided, and the purpose of accurately positioning an imaginary tangent circle is achieved.
Owner:NORTH CHINA ELECTRICAL POWER RES INST +1
Self-locating die plate of sand mold
ActiveCN105618671AIncrease curve lengthReduce the fire phenomenonFoundry moulding apparatusIsosceles trapezoidTroffer
The invention belongs to the field of sand mold casting, and relates to a sand mold casting die plate, in particular to a self-locating die plate of a sand mold. The self-locating die plate of the sand mold comprises an upper die plate body and a lower die plate body arranged on the lower portion of the upper die plate body. First trapezoidal grooves are formed in the middle of the upper die plate body. Second trapezoidal grooves are formed in the middle of the lower die plate body. The first trapezoidal grooves are the same as the second trapezoidal grooves in size and structure. Upper mold bags protruding upwards are arranged in the middles of the first trapezoidal grooves. Lower mold bags which are recessed downwards and matched with the upper mold bags are arranged in the middles of the second trapezoidal grooves. Each trapezoidal groove is an isosceles trapezoid, and the locating inclination angle of each isosceles trapezoid ranges from 5 degrees to 40 degrees. The self-locating die plate of the sand mold has the beneficial effects of being simple in structure, precise in location, high in practicability, easy to manufacture and the like, the length of the mold thickness is increased after flat parting is transformed into curved surface parting, and the phenomenon of bleeding from parting is reduced.
Owner:山东汇金股份有限公司
Airborne RTK central position compensation algorithm
InactiveCN110389367AImprove accuracyAccurate calculationSatellite radio beaconingInformation transmissionTelemetry Equipment
The invention discloses an airborne RTK central position compensation algorithm and belongs to the field of UAV measurement and control and information transmission. The algorithm comprises the stepsof a), according to the installation positions of an antenna GNSS1 and an antenna GNSS2, measuring the distance L1 between the antenna GNSS1 and the antenna GNSS2 and the distance L2 between the center of a UAV and the midpoint of the antenna GNSS1 and the antenna GNSS2; b), extracting the positional information (y, x) and the deflection angle [theta] of the antenna GNSS1 from the received telemetry data transmitted from the UAV; c), calculating the position (y1, x1) of the midpoint of the antenna GNSS1 and the antenna GNSS2 by a geometric principle according to the distance L1 between the antenna GNSS1 and the antenna GNSS2, and the position (y, x) and the deflection angle [theta] of the antenna GNSS1; d), according to the position of the midpoint of the antenna GNSS1 and the antenna GNSS2 (y1, x1), the distance L2 between the center of the UAV, the midpoint of the antenna GNSS1 and the antenna GNSS2, and the deflection angle [theta], calculating the position (y2, x2) of the center ofthe UAV by a geometric principle. The algorithm can effectively calculate the center position of the UAV and reduce the deviation caused by the installation of the antennas on the UAV.
Owner:HANGZHOU QIFEI INTELLIGENT TECH CO LTD
Automatic assembling mechanism for host cooling protective cover
ActiveCN111482921AQuick assemblyImprove assembly efficiencyWork holdersCleaning using gasesEngineeringHeat sink
Owner:芜湖文青机械设备设计有限公司
Transformer preparation system
PendingCN111477450ARealize gap feedingAvoid positioning deviationMagnetic core manufactureProduction lineTransformer
The invention provides a transformer preparation system. The transformer preparation system comprises a feeding rack, an assembling machine and a feeding belt. A storage bracket is mounted at one endof the top of the feeding rack, a control pipe is mounted at the top of the storage bracket, a feeding belt is mounted on the feeding rack below the material control pipe, a material control assemblyis mounted on the feeding rack on one side of the feeding belt, the assembling machine is installed on the feeding rack in the output direction of the material control assembly, a steering assembly isinstalled at the output end of the assembling machine, a detection frame is installed at the output end of the steering assembly, a detection conveying belt is installed at the top of the detection frame, a detector is installed above the detection conveying belt through a detection supporting rod, a positioning assembly is installed on the detection frame below the detector, and a lifting sorting assembly is arranged at the output end of the detection conveying belt. After the scheme is adopted, the structure is reasonable, the use effect is good, and transformer production can form an effective and continuous production line.
Owner:沅江市金莫特电子有限公司
Large field-of-view galvanometer coaxial vision imaging device and method
ActiveCN109822213AImprove the visual formatAvoid positioning deviationLaser beam welding apparatusCamera lensGalvanometer
The invention discloses a large field-of-view galvanometer coaxial vision imaging device and method. The device comprises a light source, a field lens, a galvanometer system, a diaphragm portion, a spectroscope, an image sensor and a laser assembly; the light source is used for irradiating a to-be-machined workpiece surface, and an imaging system light beam reflected by the workpiece surface sequentially passes through the field lens, the galvanometer system, the diaphragm portion and the spectroscope, enters a camera shooting lens and is received through the image sensor; and a laser light beam emitted by the laser assembly sequentially passes through the spectroscope, the diaphragm portion, the galvanometer system and the field lens and irradiates the to-be-machined workpiece surface. According to the large field-of-view galvanometer coaxial vision imaging device and method, the galvanometer coaxial vision breadth can be significantly increased, a visual positioning function of a large sample is completed by directly adopting galvanometer coaxial vision in the laser machining process, and positioning deviation caused by temperature drift of the galvanometer system in a laser machining system is overcome.
Owner:WUHAN HGLASER ENG CO LTD
Clamp for vacuum brazing
PendingCN111347120AAvoid positioning deviationSolve the equality matching problemWelding/cutting auxillary devicesAuxillary welding devicesEngineeringHeat sink
The invention relates to the technical field of brazing, in particular to a clamp for vacuum brazing. The clamp for vacuum brazing is used for connecting and positioning of a wall facing unit of a divertor and a heat sink material and comprises a bottom plate, bolts, an upper fixed block, a lower fixed block, elastic sheets and a positioning block. By means of the design of the upper fixed block,the lower fixed block, the upper elastic sheet and the lower elastic sheet, acting force exerted by nuts is converted into balanced acting force along bolt columns, and the acting force achieves accurate positioning of different modules through positioning block and the cooperation of the bottom plate and the bolt columns.
Owner:SOUTHWESTERN INST OF PHYSICS
Mounting mechanism for automobile door handle part
ActiveCN112059992AAvoid positioning deviationAvoid the problem of sliding downWork clamping meansPositioning apparatusElectric machineryAuto maintenance
Owner:WUHU RUIMING AUTO PARTS
Model training method and device, map drawing method and device, computer equipment and medium
PendingCN113392861AImprove performanceAvoid positioning deviationDrawing from basic elementsCharacter and pattern recognitionFeature extractionAlgorithm
The invention provides a model training method and device, and the method comprises the steps: constructing an initial network model which comprises a backbone network, a region suggestion network, a mask network and an attention mechanism-based recognition network; wherein the backbone network performs feature extraction on the input picture to obtain a feature map; the region suggestion network is used to generate candidate target boxes; and the mask network obtains a mask prediction result based on the feature map and the candidate target frame. The identification network obtains a classification prediction result and an outer bounding box prediction result based on the feature map, the candidate target frame and the mask prediction result; acquires a plurality of training pictures and respective labels of the plurality of training pictures, wherein the label of any training picture comprises the category of the target object in the any training picture, an outer wrapping frame and a mask; and trains the initial network model by using the plurality of training pictures and the respective labels of the plurality of training pictures to obtain a target network model. The invention further provides a map drawing method and device, computer equipment and a medium.
Owner:BEIJING JINGDONG QIANSHITECHNOLOGY CO LTD
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