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44results about How to "Improve calculation results" patented technology
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Sea-gas coupled real-time observation buoy system based on Beidou satellite and Iridium satellite double-satellite communication
ActiveCN110203333AHigh security requirementsReduced security requirementsBatteries circuit arrangementsWaterborne vesselsIridiumOpen sea
The invention discloses a sea-gas coupled real-time observation buoy system based on Beidou satellite and Iridium satellite double-satellite communication. The sea-gas coupled real-time observation buoy system comprises a sea-gas coupled observation sensor unit, a data collecting communication control unit, an anchoring unit, a buoy body platform, a power supplying unit and a data processing center. The buoy data collecting communication control unit adopts a Beidou satellite system to transmit conventional block method sea-gas flux, upper-layer sea current profile and buoy operation state parameters which have high requirements on data safety and low requirements on the communication quantity, and adopts an Iridium satellite system to transmit high frequency eddy related and high-resolution seawater skin surface temperature profile data which have high requirements on the communication quantity. A buoy can synchronously observe turbulence flux parameters of an eddy-related method of amovable platform, flux parameter of a block method, the seawater 0-1.0 m high-resolution skin surface temperature profile and the 0-70 m upper-layer sea current profile in real time in real time. Thesea-gas coupled real-time observation buoy system is suitable for being released in deep and open sea, and has the characteristics of diverse sea-gas interface observation parameter, safe data transmission and the like.
Owner:SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
Remote sensing detection method of motor vehicle exhaust based on combustion equation correction algorithm
ActiveCN106770059AWide range of applicabilityClearly reflect emissionsTransmissivity measurementsCorrection algorithmCombustion
The invention relates to a remote sensing detection method of motor vehicle exhaust based on a combustion equation correction algorithm. The remote sensing detection method comprises the following steps of obtaining a road background light signal according to the detection of a detector of remote sensing detection equipment; obtaining a motor vehicle exhaust light signal according to the detection of the detector of the remote sensing detection equipment; obtaining gas puff values of CO, HC, NO, NH3 and CO2 in the motor vehicle exhaust and particulate matter smoke opacity according to the difference between the motor vehicle exhaust light signal and the road background light signal, and calculating the ratio of relative volume concentrations of CO, HC, NO, NH3 and CO2 in the motor vehicle exhaust; calculating the volume concentrations of CO2, CO, HC, NO and NH3 in the motor vehicle exhaust by adopting a corrected combustion equation according to the obtained ratio of the relative volume concentrations of CO, HC, NO, NH3 and CO2 in the motor vehicle exhaust, and calculating emission factors of all gaseous pollutants in the motor vehicle exhaust on the basis of oil.
Owner:浙江多普勒环保科技有限公司
Tracked vehicle gun aiming method based on line-of-sight tracking
InactiveCN110345815AAchieve interactionImprove robustnessImage enhancementImage analysisPupilSight-reading
The invention discloses a tracked vehicle gun aiming method based on line-of-sight tracking. The tracked vehicle gun aiming method based on line-of-sight tracking aims to overcome the problems of lowapplicability, low precision and unsatisfactory real-time performance in the prior art, and comprises the following steps of: 1) acquiring a human eye image, wherein after a line-of-sight tracker is correctly worn, the position of a human eye CCD camera relative to the center of two eyes is adjusted, and the human eye CCD camera faces right towards the front direction so as to ensure that the line-of-sight tracker can accurately complete acquisition of the eye image of a shooter; 2) pupil detection, wherein (1) eye image preprocessing, (2) pupil center positioning, (3) pupil tracking, (4) Pulchin facula center positioning and (5) P-CR vector obtaining are carried out; 3) fixed-point calibration; 4) line-of-sight tracking, wherein after the mapping relationship between a P-CR vector and thecoordinates of a point of sight of a scene image is obtained, eye movement parameters of a new human eye image are further obtained, and then the position of the point of sight in the scene image isestimated by means of a determined mapping relationship to complete final line-of-sight tracking; and 5) executing control instructions.
Owner:JILIN UNIV
An embedded stability analysis method for a single-layer bracing condition of a narrow foundation pit
ActiveCN109190323AImprove accuracyImprove calculation resultsGeometric CADDesign optimisation/simulationEngineeringLimit value
The invention discloses an embedded stability analysis method for a single-layer bracing condition of a narrow foundation pit, which comprises the following steps: (1) when a passive earth pressure rupture surface of a soil body in the pit intersects with a position below the bottom surface of the pit, the pit can be judged as narrow foundation pit; (2) the stress mode of the retaining structure under the condition of narrow foundation pit single-layer support is put forward as follows: under the condition of narrow foundation pit, the soil force on the retaining structure can be divided intotwo regions, squeeze region and passive region. (3) the upper limit value of soil force on retaining piles in classical method or elastic fulcrum method is passive earth pressure, and the upper limitvalue of soil force on retaining piles in compression zone of narrow foundation pit under single-layer support condition is modified to be soil horizontal reaction coefficient multiplied by the upperlimit value of compression deformation; (4) a formula for calculating the safety factor of embedded stability of retaining structure under the condition of narrow foundation pit single-layer bracing is put forward. The formula can be used to calculate the stability of embedded length of narrow foundation pit with single-layer bracing, and it is more suitable for the practical conditions of narrowfoundation pit.
Owner:ARCHITECTURAL DESIGN RES INST OF GUANGDONG PROVINCE
Method and device for computing measurement opportunity
ActiveCN101959210AEasy to measureResolve collisionTransmission monitoringWireless communicationUser equipmentCalculation methods
The embodiment of the invention provides a method for computing measurement opportunity, which comprises the following steps that: user equipment (UE) computes radio frames receiving burst Rx Burst and the measurement opportunity according to parameters of measurement Pattern of a discontinuous receiving mode DRX Pattern and a measurement mode configured by network side equipment, wherein the burst Rx Burst and the measurement opportunity are received by different radio frames; and the UE receives information sent by the network side equipment, receives the information at the radio frame where the DRX Pattern-determined Rx Burst is positioned, and measures at the measurement opportunity determined by the measurement Pattern. In the technical scheme, the problem of the collision of RX time and the measurement opportunity is solved by setting the RX time and the measurement opportunity at different radio frames so as to facilitate improving the measurement performance of the UE and a computing result of SNPL and effectively improve the system performance.
Owner:DATANG MOBILE COMM EQUIP CO LTD
Method and system for carrying out notification on website projects
ActiveCN103412865AQuality improvementSimilarity reflectionBuying/selling/leasing transactionsSpecial data processing applicationsData miningComputer science
The invention relates to the technical field related to notification of websites, in particular to a method and system for carrying out notification on the website projects. The method for carrying out notification on the website projects comprises the steps of (1) obtaining interestingness grades of a plurality of users to a plurality of projects, (2) determining the set of projects adjacent to a targeted project, (3) determining a predicted grade of a targeted user to the targeted project according to the interestingness grades of the targeted user to the adjacent projects, and (4) sending a notice of the targeted project to the targeted user when the predicted grade of the targeted user to the targeted project exceeds a preset grade threshold. Compared with the prior art, the recommendation effect of the grade prediction method of the method and system for carrying out notification on the website projects is better, and quality of recommended commodities is greatly improved.
Owner:GUANGZHOU PINWEI SOFTWARE
Self-adaption curvelet threshold value earthquake denoising method based on local variance analysis
InactiveCN103713324AImprove calculation resultsFeatures that avoid over-sparsificationSeismic signal processingAlgorithmNoise
The invention provides a self-adaption curvelet threshold value earthquake denoising method based on local variance analysis. According to the method, on the basis that deep analysis is conducted on the characteristics of a curvelet coefficient on different scales and at different angles, a self-adaption threshold value technology is provided so that effective separation of a signal and noise can be achieved at any angle, protection conducted on non-noise components is enhanced with the help of local variance information of a curvelet area, and therefore damage to the effective signal especially the weak signal can be reduced. Practices on synthetic seismogram and land seismic data prove that the actual denoising effect of a threshold value iteration method is not ideal, the denoising effect of the method is more real and effective, and the method has the unique advantages in the aspects of noise attenuation and detail protection.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)
Reconstruction method of aerodynamic model in ground flutter test
PendingCN111324991AMeet real-time requirementsImplement refactoringDesign optimisation/simulationSustainable transportationTime domainClassical mechanics
The embodiment of the invention discloses a reconstruction method for an aerodynamic model in a ground flutter test, and the reconstruction method achieves the reconstruction of the aerodynamic modelthrough modal shape excitation, physical coordinate and modal coordinate conversion and interpolation point polycondensation. In a reconstruction process, vibration mode excitation is carried out on amode participating in flutter; obtaining an aerodynamic force influence coefficient matrix under frequency domain and modal coordinates; the method comprises the following steps: performing conversion of physical quantities under modal coordinates and physical coordinates, performing optimal configuration on interpolation points through a genetic algorithm to realize polycondensation of the interpolation points, and finally fitting frequency domain aerodynamic force to a time domain through a rational function fitting mode to obtain an aerodynamic force model meeting the requirements of a ground flutter test. The reconstruction method provided by the embodiment of the invention has the advantages that the precision is high, the calculation efficiency is high, and the model reconstructionprocess is simple and feasible; the test precision of the ground flutter test in a transonic region is improved, so that the effect of expanding the application range of the ground flutter test is achieved.
Owner:CHINA AIRPLANT STRENGTH RES INST
Data similarity calculation method and device, computer equipment and storage medium
PendingCN110427453AImprove calculation resultsReduce labor input costsText database queryingSpecial data processing applicationsData informationData profiling
The embodiment of the invention belongs to the technical field of big data analysis, and relates to a data similarity calculation method, which comprises the steps of obtaining to-be-matched data; extracting key information in the to-be-matched data; matching a service scene corresponding to the key information according to the key information; and determining a pre-trained algorithm model corresponding to the service scene, inputting the to-be-matched data into the algorithm model, and outputting a similarity calculation result. The invention further provides a data similarity calculation device, computer equipment and a storage medium. The invention further provides a data similarity calculation device, computer equipment and a storage medium. By adopting the method and the device, the data information can correspond to the service scene, and then the algorithm model suitable for the service scene is selected to calculate the data information, so that the calculation result is improved, and meanwhile, the labor investment cost is reduced.
Owner:PING AN TECH (SHENZHEN) CO LTD
Method and device for determining an open-circuit voltage profile of a vehicle battery, dependent on a state of charge
ActiveUS20160259008A1Accurate measurementImprove calculation resultsElectrical testingVehicular energy storageState of chargeEngineering
The present invention relates to a method and to a battery management system which are suitable for determining an open-circuit voltage profile (3) of a vehicle battery, dependent on a state of charge, in a vehicle. In this context, the following occur: complete discharging (S1) of the vehicle battery by vehicle-internal loads of the vehicle, sensing (S2) of a first sensed, state-of-charge-dependent voltage profile (1) during the discharging (S1) of the vehicle battery, complete charging (S3) of the vehicle battery by a charging device, sensing (S4) of a second sensed state-of-charge-dependent voltage profile (2) during the charging (S3) of the vehicle battery, and determination (S5) of the state-of-charge-dependent open-circuit voltage profile (3) by means of a weighted interpolation of the first sensed voltage profile (1) and of the second sensed voltage profile (2).
Owner:ROBERT BOSCH GMBH
Short-circuit current calculation method based on power grid characteristics
ActiveCN111064182AImprove calculation resultsAccurate calculationDesign optimisation/simulationMachine learningAlgorithmElectric power system
The invention relates to the technical field of power systems, and discloses a short-circuit current calculation method based on power grid characteristics. The method comprises the steps of A) selecting power distribution network characteristics, and taking short-circuit current If_DG flowing through a measurement point after IIDG access as a sample label; B) performing power grid modeling and simulation by utilizing simulation software to obtain a sample set; C) establishing a machine learning model through a machine learning integration method, and performing error analysis; and D) using the trained machine learning model for short circuit current calculation. According to the short-circuit current calculation method, by analyzing the power distribution network characteristics related to the short-circuit current, a power distribution network characteristic combination is provided; power grid modeling and simulation are carried out by utilizing simulation software to form the sampleset; short-circuit current calculation is accurately carried out; the calculation speed is high; and the calculation result accuracy is high.
Owner:HUZHOU ELECTRIC POWER SUPPLY CO OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD +1
Improved method for selecting high-voltage circuit breaker in power transformation and distribution system
ActiveCN107505570AImprove efficiencyImprove accuracyCircuit interrupters testingDistribution power systemElectric power distribution
The invention provides an improved method for selecting a high-voltage circuit breaker in a power transformation and distribution system, which summarizes a relationship between a periodic component and a direct current component of breaking short-circuit current and improves a calculation formula for the breaking capacity of the circuit breaker. Different from the traditional calculation method, the improved method respectively calculates the periodic component and the direct current component of the short-circuit current and then compares with breaking current of the circuit breaker so as to judge whether the breaking current of the circuit breaker can meet requirements or not. The time-periodic component relationship which is relatively simple and easy to search and calculate is found out by using a relational expression, a value range of a time constant in a power distribution system is deduced, and a calculation method is provided; and the breaking capacity of the circuit breaker is determined through comparing the breaking time. The improved method is simple and clear in calculation process, the original calculation data is easy to obtain, and the calculation result is accurate. Electrical equipment with a high performance-cost ratio can be accurately selected because the accuracy is substantially improved.
Owner:鞍钢集团工程技术有限公司
Photographic correction method and photographic apparatus for a multi-lens group
ActiveCN109257540AImprove calibration accuracyQuality assuranceTelevision system detailsColor television detailsImaging qualityCorrection method
The invention relates to a photographing correction method and a photographing device of a multi-lens group, comprising: S1. enabling one lens group in the multi-lens group to capture a first image and generating a first sharpness index based on the first image; S2, judging whether the first sharpness index satisfies a preset first threshold condition, if not, enabling another lens group in the multi-lens group to capture a second image; S3. acquiring the number of pixels added to the first image by the second image based on the first sharpness index, and completing correction of the first image. Based on the sharpness index to evaluate whether the first lens composition image is blurred, When part or all of the first image is blurred, a second lens with a focus range different from that of the first lens group is enabled to photograph the second image, and the blurred area in the first image is replaced or synthesized through the second image, thereby greatly reducing the calculationamount and improving the calculation efficiency under the condition of guaranteeing the image quality.
Owner:ZHEJIANG SUNNY OPTICAL CO LTD
Liquid crystal lens imaging method
The invention provides a liquid crystal lens imaging method, comprising: driving a liquid crystal lens to be in a first state, using a first optical signal which passes through the liquid crystal lens at the moment of the first state, generating a first lighting graph corresponding to the first optical signal according to the first optical signal; driving the liquid crystal lens to be in a second state, using a second optical signal which passes through the liquid crystal lens at the moment of the second state, generating a second lighting graph corresponding to the second optical signal according to the second optical signal; processing the first lighting graph and the second lighting graph, using the lighting graph obtained by processing as a final lighting graph; and according to the final lighting graph, generating a final digital image signal. Through processing the lighting graphs, the liquid crystal lens imaging method finally obtains the digital image signal, so as to prevent error problems caused by calculation just aimed at the linear response interval of an imaging sensor when the digital image signal is directly used for processing. Thus, a calculation result of the lighting graph is improved.
Owner:SUPERD CO LTD
Accelerated large-scale similarity calculation
PendingCN110959157AIncrease Relevance ScoreImprove calculation resultsOther databases clustering/classificationMemory systemsTheoretical computer scienceData mining
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for obtaining data stored at a storage device using a first processor of an entity correlation system. The data includes information about multiple entities. The first processor generates data arrays using the obtained data. Each data array includes parameter values for multiple entities and is configured for processing at a respective computing cell of a second processor. The system provides the data arrays to the second processor. The second processor is configured to execute a correlation algorithm to concurrently process the data arrays at the respective computing cells. The second processor computes a correlation score based on calculations performed at the cells using the algorithm andthe parameter values. The system determines relationships among entities of the data arrays based on the correlation score. The relationships indicate overlapping attributes or similarities that existamong subsets of entities.
Owner:GOOGLE LLC
Bridge span arrangement method and device, equipment and readable storage medium
PendingCN113609548AImprove calculation resultsGeometric CADSpecial data processing applicationsGlobal simulationValue network
The invention provides a bridge span arrangement method and device, equipment and a readable storage medium, relates to the technical field of bridge construction, and comprises a new thought of performing span arrangement by using artificial intelligence. Aiming at the requirement of intelligent span arrangement, on the basis of a basic principle and a calculation principle of bridge span arrangement and in combination with excellent learning decision-making capability of reinforcement learning, a strategy value network is optimized and output through a Sarsa(lambda) algorithm, and the strategy value network is added into an AlphaGo algorithm; the simulation stage can obtain accumulated rewards corresponding to global simulation with the node as a root node through a rapid cross arrangement strategy, and can also directly find the corresponding maximum accumulated reward in the strategy value network; and finally the maximum one of the two is taken as the actual accumulated reward after the node simulation is finished, therefore, the final operation result of the AlphaGo algorithm is improved.
Owner:CHINA RAILWAY ENG CONSULTING GRP CO LTD
Methods and apparatus for determination of light sources of images and color vision matching of images
InactiveCN108462865AImprove calculation resultsEffective color vision adaptationTelevision system detailsColor signal processing circuitsLight sourceColor vision
The invention provides methods and apparatus for determination of light sources of images and color vision matching of images. The method for determination of light sources of images includes the steps of calculating the indicating value of each of a group of candidate light sources of an image, wherein each candidate light sources is described by corresponding coordinate pairs (p, q) in a chromacoordinate system; determining the threshold of the indicating values of the candidate light sources; identifying a subset of the candidate light sources with the indicating values not greater than the threshold value, and calculating the weight average of the corresponding coordinate pairs for all the candidate light sources in the subset to obtain the average coordinate pairs describing the light sources of the image in the chroma coordinate system.
Owner:MEDIATEK INC
Forward design and calculation method of sprag clutch structure
InactiveCN111692236ATurning torque boostOptimize the value of effective liftGeometric CADSpecial data processing applicationsControl engineeringControl theory
The invention discloses a forward design and calculation method of a sprag clutch structure. The forward design involves wedge blocks arranged in an arc-shaped surface mode, an outer sleeve and an inner shaft, wherein a roller path is formed between the outer sleeve and the inner shaft, and the wedge blocks are arranged in the roller path in a sliding mode; and the calculation method comprises thesteps that S1, an inner raceway and an outer raceway are reversed, and the movement of the wedge blocks is analyzed, and S2, the maximum lift is solved. The invention belongs to the technical field of design methods of sprag type overrunning clutches, and particularly provides the forward design and calculation method of the sprag clutch structure. According to the forward design and calculationmethod of the sprag clutch structure, on the premise of not changing basic parameters, a wedge block structure is locally corrected, and new parameters are added, so that the effective lifts of four standard wedge blocks are all greater than corresponding original standard data and reach the maximum value, the overall overturning torque and the ultimate load of the clutch are further improved, andthe overall performance of sprag type overrunning clutches in two forms including a forced continuous sprag clutch and an all-phase sprag clutch is improved.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Analysis of biology by measurement of relative wide spectral bands of reflected light and fluoresce light
ActiveUS10885675B1Improve calculation resultsPromote resultsImage enhancementImage analysisSpectral bandsFluorescence
Attributes of vegetables or biologics are derived by use of color imaging sensors and relative spectral band analysis. Enabled smart phones or dedicated single pixel or focal plane instruments for crop applications to quickly report the biological condition of vegetables or other organics by providing an augmented view or relative quantification of RGB of the inspected items. Disclosed embodiments are well suited for analyzing the health and needs of living plants or crops. Ratios of observed wide band red, green and blue are compared on a relative basis. While food shopping, an enabled smart phone may view a collection of produce and display each piece of produce in a manner disclosing a quality ranking. Thus, a consumer may view produce through a smartphone camera and quickly evaluate its relative quality. Novel approaches are used to associate the calculated data with the original source imagery.
Owner:APPLICOLOR INC
Method and device for determining an open-circuit voltage profile of a vehicle battery, dependent on a state of charge
ActiveUS10191115B2Accurate measurementImprove calculation resultsElectrical testingVehicular energy storageElectrical batteryState of charge
Owner:ROBERT BOSCH GMBH
Liquid crystal lens imaging method
The invention provides a liquid crystal lens imaging method, comprising: driving a liquid crystal lens to be in a first state, using a first optical signal which passes through the liquid crystal lens at the moment of the first state, generating a first lighting graph corresponding to the first optical signal according to the first optical signal; driving the liquid crystal lens to be in a second state, using a second optical signal which passes through the liquid crystal lens at the moment of the second state, generating a second lighting graph corresponding to the second optical signal according to the second optical signal; processing the first lighting graph and the second lighting graph, using the lighting graph obtained by processing as a final lighting graph; and according to the final lighting graph, generating a final digital image signal. Through processing the lighting graphs, the liquid crystal lens imaging method finally obtains the digital image signal, so as to prevent error problems caused by calculation just aimed at the linear response interval of an imaging sensor when the digital image signal is directly used for processing. Thus, a calculation result of the lighting graph is improved.
Owner:SUPERD CO LTD
Photography correction method and photography device of multi-camera lens group
ActiveCN109257540BImprove calibration accuracyQuality assuranceTelevision system detailsColor television detailsCamera lensImaging quality
The present invention relates to a photographic correction method and photographic device of a multi-camera lens group, comprising: S1. enabling one lens group in the multi-camera lens group to capture a first image, and generating a first sharpness index based on the first image; S2. Judging whether the first sharpness index meets the preset first threshold condition, if not, enabling another lens group in the multi-camera lens group to capture a second image; S3. Based on the first sharpness The degree index acquires the number of pixels added to the first image by the second image, and completes the correction of the first image. Based on the sharpness index to evaluate whether the image of the first lens group is blurred, when part or all of the first image is blurred, a second lens with a focal length range different from that of the first lens group will be used to take a second image and replace it with the second image Or the fuzzy area in the first image is synthesized, and then under the condition of ensuring the image quality, the calculation amount of the present invention is greatly reduced, and the calculation efficiency is improved.
Owner:ZHEJIANG SUNNY OPTICAL CO LTD
Notification method and system for website items
ActiveCN103412865BQuality improvementSimilarity reflectionBuying/selling/leasing transactionsSpecial data processing applicationsWeb sitePredictive methods
The invention relates to the technical field related to notification of websites, in particular to a method and system for carrying out notification on the website projects. The method for carrying out notification on the website projects comprises the steps of (1) obtaining interestingness grades of a plurality of users to a plurality of projects, (2) determining the set of projects adjacent to a targeted project, (3) determining a predicted grade of a targeted user to the targeted project according to the interestingness grades of the targeted user to the adjacent projects, and (4) sending a notice of the targeted project to the targeted user when the predicted grade of the targeted user to the targeted project exceeds a preset grade threshold. Compared with the prior art, the recommendation effect of the grade prediction method of the method and system for carrying out notification on the website projects is better, and quality of recommended commodities is greatly improved.
Owner:GUANGZHOU PINWEI SOFTWARE
A Remote Sensing Detection Method of Motor Vehicle Exhaust Gas Based on Combustion Equation Modification Algorithm
ActiveCN106770059BWide range of applicabilityClearly reflect emissionsTransmissivity measurementsCorrection algorithmCombustion
Owner:浙江多普勒环保科技有限公司
Self-adaption curvelet threshold value earthquake denoising method based on local variance analysis
InactiveCN103713324BImprove calculation resultsFeatures that avoid over-sparsificationSeismic signal processingAlgorithmNoise
The invention provides a self-adaption curvelet threshold value earthquake denoising method based on local variance analysis. According to the method, on the basis that deep analysis is conducted on the characteristics of a curvelet coefficient on different scales and at different angles, a self-adaption threshold value technology is provided so that effective separation of a signal and noise can be achieved at any angle, protection conducted on non-noise components is enhanced with the help of local variance information of a curvelet area, and therefore damage to the effective signal especially the weak signal can be reduced. Practices on synthetic seismogram and land seismic data prove that the actual denoising effect of a threshold value iteration method is not ideal, the denoising effect of the method is more real and effective, and the method has the unique advantages in the aspects of noise attenuation and detail protection.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)
Computer-implemented method for simulation of entire electronic circuit
PendingCN109101676AImprove calculation resultsSuitable for decompositionSimulator controlDesign optimisation/simulationElectronic circuitState-space representation
A computer-implemented method for simulation of an electrical circuit with circuit components by at least one computing unit includes mapping a coupling of the substrate representations in a couplingequation system for exchange of calculated coupling variables between the subcircuits. The method also includes calculating, in an evaluation step, at least one stability parameter on a basis of the coupling equation system, and deciding, in a selection step and depending on the at least one calculated stability parameter, whether the current separation of the electrical circuit into subcircuits will be used as the basis of the simulation. The method further includes performing, after a successful selection, the simulation of the electrical circuit by calculating the substrate space representations on the at least one computing unit.
Owner:디스페이스게엠베하
Ultrasound diagnosis apparatus
ActiveUS20190183455A1High measurement accuracyImprove calculation resultsHealth-index calculationOrgan movement/changes detectionAnatomical structuresObject based
The present invention relates to an ultrasound diagnosis apparatus (10), in particular for analyzing a fetus (62). An ultrasound data interface (66) is configured to receive 3D (three dimensional) ultrasound data from an object (12). The ultrasound diagnosis apparatus further comprises a measurement unit (70) for measuring anatomical structures of the object based on the segmentation data and a calculation unit (72) configured to calculate at least one biometric parameter based on the 3D ultrasound data.
Owner:KONINKLJIJKE PHILIPS NV
An Embedded Stability Analysis Method Applicable to Single-layer Support in Narrow Foundation Pit
ActiveCN109190323BImprove accuracyImprove calculation resultsGeometric CADDesign optimisation/simulationStructure of the EarthEngineering
Owner:ARCHITECTURAL DESIGN RES INST OF GUANGDONG PROVINCE
A Multiphysics Coupling Field Calculation Method for Reflector Antennas
ActiveCN112329292BAccurately get the displacementImplement coupled computingDesign optimisation/simulationSpecial data processing applicationsEngineeringComputational physics
Owner:NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
Fluid-solid coupling field calculation method of double-reflector antenna
ActiveCN112329356AImplement coupled computingAchieve conversionSustainable transportationDesign optimisation/simulationComputational physicsField analysis
The invention discloses a fluid-solid coupling field calculation method of a double-reflector antenna, relates to the technical field of reflector antenna analysis, and aims to provide a calculation method which is high in precision, free of conversion errors and high in practicability. The method mainly comprises the following steps: establishing a model and a computational domain in fluid fieldpretreatment software, and obtaining an intermediate format file after conversion; importing the intermediate format file into fluid field software, determining a solver according to the Reynold number, and obtaining a fluid field result; performing data processing on the fluid field result to obtain a resistance coefficient, a lift coefficient and a moment coefficient of the antenna; converting the format of the fluid field result, then importing the fluid field result into solid field software, establishing a relation coupling unit in the solid field, and obtaining a solid field result. According to the method, fluid and solid field analysis is effectively integrated, and the method is particularly suitable for design, index budget and strength check of various reflector antennas.
Owner:NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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