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41results about How to "Reduce computing workload" patented technology
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Touch-sensitive scanning detection method and system, as well as capacitive touch sensor
ActiveCN101706698ALess sampled dataReduce computing workloadInput/output processes for data processingSensor fieldComputer science
The invention provides a touch-sensitive scanning detection method and a system, as well as a capacitive touch sensor, which are applicable to the field of touch sensors. The method comprises the following steps: firstly, detecting out a sensing electrode on a capacitive touch sensor unit, corresponding to a touch position; then driving a drive electrode in a cross coupling way; conducting detection scanning on the sensing electrode in a targeted way; and finally determining the touch position. Without the need of detecting the touch sensor units on a capacitive touch sensor unit matrix one by one, the detection method decreases sampling data, reduces operational workload and achieves the purposes of saving time and power.
Owner:SHENZHEN GOODIX TECH CO LTD
Node merge method based dynamic network topology analysis method
InactiveCN103178516AImprove parallelismImprove real-time performanceAc network circuit arrangementsNODALTopological graph
The invention provides a node connected island merge based network topology analysis method. In a network topology map, a connected region formed by a node i and adjacent nodes j and k thereof is called as a connected island of the node I, and a minimum node number of the nodes i, j and k included in the island serves as an island number of the connected island. A two-dimensional array data storage structure capable of storing part of intermediate operation results is adopted, so that the method is adaptable to ring network type and tree network connectivity analysis, and is particularly suitable for plant station configuration parallel topology analysis. When the topology analysis method uses a computer multi-core parallel processing technology for achieving plant station bus configuration topology analysis, data collision due to the fact that multiple processors read and write a same node connected island number simultaneously is avoided, topology analysis operational speed is increased, parallel processing efficiency is improved, and operational speed is high while real-time performance is good.
Owner:HARBIN INST OF TECH
Comprehensive evaluation method for primary frequency modulation performance of generator set
InactiveCN106300389APerfect dynamic performanceReduce computing workloadSingle network parallel feeding arrangementsPower oscillations reduction/preventionEvaluation resultPower system scheduling
The invention provides a comprehensive evaluation method for primary frequency modulation performance of a generator set. The comprehensive evaluation method comprises the following steps of determining an index for evaluating the primary frequency modulation performance of the generator set; performing normalized processing on the index for the primary frequency modulation performance of the generator set; determining the weight of the index for the primary frequency modulation performance of the generator set by a subjective and objective weight combination method; and evaluating the grade of the primary frequency modulation performance of the generator set based on a matter-element extension method. According to the comprehensive evaluation method, the dynamic primary frequency modulation performance index is introduced; the advantages of the subjective weight and the objective weight are combined to solve the weight of the primary frequency modulation performance index; the comprehensive evaluation for the primary frequency modulation performance of the generator set can be carried out based on the matter-element extension method; and in addition, the evaluation result is objective, reasonable and safe, so that foundation is laid for assessment of a dispatching department of an electric power system.
Owner:STATE GRID CORP OF CHINA +2
Capillary optical imaging and jitter compensating method and system based on complex number mutual correlation
ActiveCN104523233AHigh sensitivityIncrease contrastDiagnostic recording/measuringSensorsLight spotRed blood cell
The invention discloses a capillary optical imaging and jitter compensating method and system based on complex number mutual correlation. The method is combined with the three-dimensional spatial resolution capacity of an optical coherence tomography imaging technology and the spatial motion resolution capacity of a dynamic scattering technology, OCT imaging is carried out repeatedly on the same spatial position or the position with a focusing light spot having certain spatial correlation at a certain time interval, scattering signals of a static tissue background do not change along with time, and scattering signals of dynamic red blood cells change along with time. Accordingly, blood flow signals can be recognized from the OCT signals, and capillary optical imaging based on the blood flow motion characteristic is achieved. The capillary optical imaging and jitter compensating method is not affected by phase overall disturbance and does not need phase correction; extraction of the blood flow signals and correction of image overall offset are carried out based on a complex number mutual correlation algorithm and can be realized in parallel.
Owner:SHANGHAI NEW EYES MEDICAL CO LTD
Frequency conversion control device of DC motor
ActiveCN101272114APrecise controlReduce computing workloadSingle motor speed/torque controlElectronic commutatorsDC-BUSSine wave
The invention discloses a DC electromotor frequency conversion control device which is characterized in that the device comprises a sample resistance, an intelligent frequency conversion module and a controller which are connected in series among three low bridge arms and power DC buses of the intelligent frequency conversion module. The intelligent frequency conversion module comprises an inverter consisting of a large power electric switch apparatus; the switch control gate of the large power electric switch apparatus receives a switching control signal transmitted by the controller, and the switching control signal is converted to a drive current of the DC electromotor by the controller; the controller comprises a calculating element which is used for calculating and obtaining the position of a rotor according to the three-phase input current of the electromotor collected by the sample resistance as well as a control unit which generates the switching control signal of the large power electric switch apparatus according to the rotor position and an expected rotate speed of the electromotor. The DC electromotor frequency conversion control device provided by the invention can meet the requirement of the frequency conversion of 180 degrees of sine wave of a brushless DC electromotor.
Owner:HAIER GRP CORP +1
Prediction method and device for secondary purchase intention of customers
InactiveCN102156932AReduce operating pressureImprove marketing successMarketingPredictive methodsWorkload
The invention relates to the technical field of data processing, and discloses a prediction method and device for the secondary purchase intention of customers, used for improving the accuracy of a predicted result of the secondary purchase intention of the customers. The method comprises the following steps of: reading a target customer list from a specified storage position, acquiring historical benefits of respective customers according to customer identifiers stored in the obtained target customer list, determining the variation tendency of the historical benefits as well as the purchasing power parameters and customer maturity of the respective customers according to the historical benefits; calculating the user psychological comfort levels of the respective customers according to the acquired parameters; and generating a final marketing customer list according to customer identifiers of the customers whose user psychological comfort levels reach set conditions. Thus, the calculation workload can be reduced, the calculation speed can be improved, and therefore the operation pressure of a server can be effectively reduced. The invention also discloses an evaluation device.
Owner:ALIBABA GRP HLDG LTD
LCL filter capable of adjusting resonant frequency automatically and working method of filter
InactiveCN107565565AImprove filtering effectImprove power qualityActive power filteringAc network to reduce harmonics/ripplesCapacitancePower quality
The invention discloses an LCL filter capable of adjusting resonant frequency automatically and a working method of the filter. The LCL filter capable of adjusting resonant frequency automatically comprises an inverter side inductor, a power grid side inductor, N groups of capacitors in parallel connection between the inverter side inductor and the power grid side inductor, and a controller connected to the N groups of capacitors in parallel connection and for controlling the switching number of the capacitors. Influence of electric reactance to the resonant frequency existing on a line can beeliminated by only adjusting the filtering capacitor values; the resonant frequency of the filtering circuit can be dynamically adjusted according to actual needs, and the resonant frequency can be kept within an APF normal operation safety range, so that the APF filtering effect is improved, thereby improving electric energy quality and ensuring power generation grid-connection stability; and byadopting controller to control switching of the capacitors, the filter is simple in structure, capable of lowering operational workload and cost, low in electrical collection amount in the realization process, good in filtering effect, and capable of improving grid-connection electric energy quality.
Owner:SHANGHAI LANRUI ELECTRIC
File encryption method and device
PendingCN111552938AFix security issuesSolve complexityDigital data protectionDigital data authenticationEncryptionData library
Embodiments of the invention provide a file encryption method and device. The method comprises the steps of obtaining an encrypted and compressed first encrypted file; selecting an interception position of a binary file of the first encrypted file; intercepting a binary file of the first encrypted file according to the interception position, and storing interception position information and intercepted binary content into a database; and splicing the remaining binary files after the first encrypted file is intercepted to generate a second encrypted file. According to the embodiment of the invention, the binary file of the first encrypted file is subjected to position interception and storage, so that the problem of relatively low file encryption security in related technologies can be solved, and the effect of improving the security of the encrypted file is achieved.
Owner:SHANGHAI MININGLAMP ARTIFICIAL INTELLIGENCE GRP CO LTD
Method and device for configuring device in wave division multiplexing WDM network
InactiveCN101262297AMeet planning needsOptimize the planning processWavelength-division multiplex systemsData switching by path configurationMultiplexingSoftware engineering
The invention provides a method and a device for configuring equipment in wavelength division multiplex (WDM) networks. The method comprises the steps as follows: a. final constrained parameter values in all service receiving ends are confirmed according to constrained parameter values in the links, through which all services loaded by WDM networks pass; b. the final constrained parameter values in all service receiving ends and equipment tolerance values in all service receiving ends are compared, and links through which sub-par services pass are regulated till the final constrained parameter values in all service receiving ends fall within the range of the equipment tolerance values in all service receiving ends. The technical proposal provided by the invention can optimize network planning process, and can realize the goal of reducing the workload of model computation, so as to save planning cost and meet the requirements raised by a large-scale WDM network planning; meanwhile, the technical proposal provided by the embodiment of the invention can also optimize the specifications of the equipment, thereby realizing the goal of reducing capital expenditures of the networks.
Owner:GLOBAL INNOVATION AGGREGATORS LLC
Dry-type reactor monitoring method based on waveform reduction technology and implementation device thereof
InactiveCN109980778AConvergent stabilityFast operationPower network operation systems integrationCircuit arrangementsStatistical analysisPhase difference
The invention relates to a dry-type reactor monitoring method based on waveform reduction technology and an implementation device thereof. In the method, voltage and current signals are collected in pairs through a DSP (digital signal processor) or a single chip microcomputer, and the waveform restoration calculation of the corresponding signals is performed by adopting an improved spline fittingmodel; determining the zero crossing point of the obtained waveform, and if a zero crossing point criterion is triggered, calculating the corresponding signal frequency of the waveform by using the time interval of two zero crossing points of the same signal waveform according to the sampling frequency or the clock sequence of the DSP or the single chip microcomputer as a reference; calculating phase difference according to the time difference of successive zero crossing points in the same signal group; further calculating a power factor; and transmitting the real-time phase difference, frequency and power factor calculation results to a remote computer through a protocol, storing and processing the real-time data by the computer, performing statistic analysis of the change and the abnormal fluctuations of the frequency, the phase difference and the power factor to monitor the states of operation of an electric power system and an electric power device for timely early warning and alarm.
Owner:ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER +5
Integral design method and device for curved surface
InactiveCN102799731AImprove design efficiencyEasy to understandSpecial data processing applicationsComputer resourcesComputer Aided Design
The invention relates to the technical field of computer aided design and manufacturing, and in particular relates to an integral design method and an integral design device for a curved surface. The integral design method for the curved surface comprises the following steps of: 1) determining a number M of reference points to be acquired; 2) setting three-dimensional coordinate values (xi, yj, Z(xi, yj)), Zx (xi, yj), Zy (xi, yj) and Zxy (xi, yj) of the M reference points, wherein (i, j=0,1,2,...,n), and (n+1)<2>=M; 3) substituting the four types of parameters into the following formula; and 4) generating the curved surface according to the formula. A curved surface generation device generates the curved surface by using the curved surface generation method. By adopting integral design, the working procedure is simple; the curved surface can be generated only by using one formula; the calculation working amount is small; the number of occupied computer resources is small; the number of reference points is set, and the four types of parameters are substituted into the formula; the curved surface design efficiency is improved; and a designer can understand and use the curved surface conveniently.
Owner:梁锦鹏
Universal post-processing method for five-axis numerical control tool grinding machine
ActiveCN108549323AImprove general performanceSimplify Computational EngineeringProgramme controlComputer controlType transformationNumerical control
The invention, which belongs to the technical field of a tool post-processing method of a five-axis numerical control machine, discloses a universal post-processing method for a five-axis numerical control tool grinding machine so that a problem that the existing post-processing method of the machine tool is not suitable for the five-axis numerical control grinding machine because of not considering the initial axial direction of the grinding wheel and the mounting positions and mounting directions of multiple grinding wheels and inconsistency of the workpiece coordinate system direction and the machine tool coordinate system can be solved. The method comprises: establishing a unified coordinate system; setting characteristic parameters of a grinding machine; establishing a universal grinding machine post solution equation; and calculating the equation established at the previous step by using a method based on grinding machine type transformation. According to the invention, a novel method is provided for post processing of a five-axis numerical control grinding machine; and the post-processing method can be applied to existing 36 kinds of five-axis numerical control grinding machines on the market and has high universality.
Owner:SOUTHWEST JIAOTONG UNIV +1
A general post-processing method for five-axis CNC tool grinder
ActiveCN108549323BImprove general performanceSimplify Computational EngineeringProgramme controlComputer controlCnc grindingProcess engineering
The invention, which belongs to the technical field of a tool post-processing method of a five-axis numerical control machine, discloses a universal post-processing method for a five-axis numerical control tool grinding machine so that a problem that the existing post-processing method of the machine tool is not suitable for the five-axis numerical control grinding machine because of not considering the initial axial direction of the grinding wheel and the mounting positions and mounting directions of multiple grinding wheels and inconsistency of the workpiece coordinate system direction and the machine tool coordinate system can be solved. The method comprises: establishing a unified coordinate system; setting characteristic parameters of a grinding machine; establishing a universal grinding machine post solution equation; and calculating the equation established at the previous step by using a method based on grinding machine type transformation. According to the invention, a novel method is provided for post processing of a five-axis numerical control grinding machine; and the post-processing method can be applied to existing 36 kinds of five-axis numerical control grinding machines on the market and has high universality.
Owner:SOUTHWEST JIAOTONG UNIV +1
Tension and compression testing machine
ActiveCN104215508AGuaranteed stabilityUniform force distributionMaterial strength using tensile/compressive forcesPush and pullMobile bearing
The invention discloses a tension and compression testing machine. The tension and compression testing machine comprises a main bearing frame, a mobile bearing vehicle, cylinder vehicles, connecting devices and push and pull oil cylinders. The mobile bearing vehicle is a mobile bidirectional bearing vehicle and is arranged in the middle of the main bearing frame; the two connecting devices are arranged at both ends of the mobile bidirectional bearing vehicle; the two cylinder vehicles are connected with both ends of the main bearing frame through the two push and pull oil cylinders; one of the push and pull oil cylinders is a large-tonnage push and pull oil cylinder, and the other push and pull cylinder is a small-tonnage push and pull oil cylinder; the minimum value of the action force of the large-tonnage push and pull oil cylinder is smaller than or equal to the maximum value of the action force of the small-tonnage push and pull oil cylinder. The tension and compression testing machine greatly enlarges the testing range, thereby being applicable to testing not only medium-tonnage tools, but also small-tonnage tools as well as large-tonnage tools.
Owner:TIANHE OIL GROUP HUIFENG GASOLINEEUM EQUIP
Frequency conversion control device of DC motor
ActiveCN101272114BControl speedReduce computing workloadSingle motor speed/torque controlElectronic commutatorsElectrical resistance and conductanceDriving current
The invention discloses a DC electromotor frequency conversion control device which is characterized in that the device comprises a sample resistance, an intelligent frequency conversion module and a controller which are connected in series among three low bridge arms and power DC buses of the intelligent frequency conversion module. The intelligent frequency conversion module comprises an inverter consisting of a large power electric switch apparatus; the switch control gate of the large power electric switch apparatus receives a switching control signal transmitted by the controller, and the switching control signal is converted to a drive current of the DC electromotor by the controller; the controller comprises a calculating element which is used for calculating and obtaining the position of a rotor according to the three-phase input current of the electromotor collected by the sample resistance as well as a control unit which generates the switching control signal of the large power electric switch apparatus according to the rotor position and an expected rotate speed of the electromotor. The DC electromotor frequency conversion control device provided by the invention can meet the requirement of the frequency conversion of 180 degrees of sine wave of a brushless DC electromotor.
Owner:HAIER GRP CORP +1
Mass data correlation peak position fast obtaining method
ActiveCN103425879AImprove work efficiencyReduce computing workloadSpecial data processing applicationsComputational physicsStatistical physics
The invention relates to a mass data correlation peak position fast obtaining method. The mass data correlation peak position fast obtaining method comprises a step 1 of re-sampling of data to be processed, a step 2 of correlation operation of samples of the re-sampled data, a step 3 of raw data interception, a step 4 of correlation operation of samples of the intercepted data, and a step 5 of calculation for obtaining correlation peak positions of raw data. The mass data correlation peak position fast obtaining method can solve the problems that in a common method, when mass data correlation peak positions are to be obtained, the number of operations is too large and the operation time is too long, thereby mitigating the adverse effect that a data processor needs to operate in an overloaded mode for a long time.
Owner:BEIJING INST OF RADIO METROLOGY & MEASUREMENT
Image fine-grained classification method and device, storage medium and equipment
PendingCN111340097AAchieving Class DistinctioAchieving intra-class cohesionCharacter and pattern recognitionNeural architecturesFeature extractionClassification methods
The embodiment of the invention discloses an image fine-grained classification method and device, a storage medium and equipment. The method comprises the steps of acquiring at least two sample images; performing feature extraction on the at least two sample images to obtain feature information corresponding to the at least two sample images; determining first label values corresponding to the atleast two sample images; constructing a preset measurement model according to the obtained feature information and the first label value, wherein the preset measurement model represents a measurementmodel for optimizing the distance between at least two pieces of feature information; combining the preset measurement model with a pre-trained preset classification model to obtain a target classification model, wherein the target classification model is used for realizing fine-grained classification of the to-be-processed image.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD
Microvascular Optical Contrast Imaging and Jitter Compensation Method Based on Complex Cross-correlation
ActiveCN104523233BHigh sensitivityIncrease contrastDiagnostic recording/measuringSensorsLight spotRed blood cell
The invention discloses a capillary optical imaging and jitter compensating method and system based on complex number mutual correlation. The method is combined with the three-dimensional spatial resolution capacity of an optical coherence tomography imaging technology and the spatial motion resolution capacity of a dynamic scattering technology, OCT imaging is carried out repeatedly on the same spatial position or the position with a focusing light spot having certain spatial correlation at a certain time interval, scattering signals of a static tissue background do not change along with time, and scattering signals of dynamic red blood cells change along with time. Accordingly, blood flow signals can be recognized from the OCT signals, and capillary optical imaging based on the blood flow motion characteristic is achieved. The capillary optical imaging and jitter compensating method is not affected by phase overall disturbance and does not need phase correction; extraction of the blood flow signals and correction of image overall offset are carried out based on a complex number mutual correlation algorithm and can be realized in parallel.
Owner:SHANGHAI NEW EYES MEDICAL CO LTD
Control method of multi-energy complementary distributed energy microgrid operation optimization control system
ActiveCN109687428BOptimize running adjustmentsOptimizationSingle network parallel feeding arrangementsMicrogridControl system
The invention relates to a multi-energy complementary distributed energy microgrid operation optimization control system and method based on an analytic hierarchy process. At present, the operation optimization adjustment of a distributed energy station is basically based on a principle of economy, and the coupling between a user load and a multi-energy complementary energy supply system is difficult to accurately meet. The system comprises a multi-target comprehensive analysis system, an environment prediction system, an optimization adjustment system and an output guidance system; the multi-target comprehensive analysis system comprises a sub-target analysis system, a target analysis system and a multi-target comprehensive evaluation system; the multi-target comprehensive analysis systemand the environment prediction system are both connected with the optimization adjustment system, and the optimization adjustment system is connected with the output guidance system. Through the analytic hierarchy process, the multi-target comprehensive evaluation and analysis of the energy efficiency, performance, environment, reliability, economy, greenness and the like are carried out, and based on a Q on-line deep learning theory, the multi-target integration of the multi-energy complementary comprehensive energy supply system is achieved, and the system optimization operation is comprehensively promoted.
Owner:HUADIAN ELECTRIC POWER SCI INST CO LTD +1
Power distribution network control application network topology automatic identifying method
ActiveCN103280894BReal-time queryReduce computationComputer controlWeb data indexingNetwork topologyElectric power
The present invention relates to the field of electric power automation. A method for controlling automatic identification of an application network topology by a power distribution network, the method comprising the following steps: 1. Statically configuring switch attributes; 2. A power distribution network intelligent terminal STU determines whether a query trigger condition is satisfied; 3. An inquirer sends a query command to start the query into an application network topology; 4. Replying to the query command; 5. Receiving the query command; 6. Checking the integrity of the switch attribute information; 7. Forming an application network topology. The method for controlling automatic identification of an application network topology by a power distribution network has few calculations and high speed, ensures the integrity and reliability of information, and is particularly suitable for distributed intelligent control of the power distribution network. The establishment of the application network topology is distributed to each power distribution network intelligent terminal STU, thus reducing heavy calculation, and being suitable for application having relatively few embedded system software and hardware resources.
Owner:SHANDONG UNIV OF TECH +1
Method and device for configuring device in wave division multiplexing WDM network
InactiveCN101262297BMeet needsReduce computing workloadWavelength-division multiplex systemsData switching by path configurationMultiplexingSoftware engineering
The invention provides a method and a device for configuring equipment in wavelength division multiplex (WDM) networks. The method comprises the steps as follows: a. final constrained parameter values in all service receiving ends are confirmed according to constrained parameter values in the links, through which all services loaded by WDM networks pass; b. the final constrained parameter values in all service receiving ends and equipment tolerance values in all service receiving ends are compared, and links through which sub-par services pass are regulated till the final constrained parameter values in all service receiving ends fall within the range of the equipment tolerance values in all service receiving ends. The technical proposal provided by the invention can optimize network planning process, and can realize the goal of reducing the workload of model computation, so as to save planning cost and meet the requirements raised by a large-scale WDM network planning; meanwhile, the technical proposal provided by the embodiment of the invention can also optimize the specifications of the equipment, thereby realizing the goal of reducing capital expenditures of the networks.
Owner:GLOBAL INNOVATION AGGREGATORS LLC
A Comprehensive Evaluation Method for Primary Frequency Regulation Performance of Generating Sets
InactiveCN106300389BPerfect dynamic performanceReduce computing workloadSingle network parallel feeding arrangementsPower oscillations reduction/preventionEvaluation resultPower system scheduling
The invention provides a comprehensive evaluation method for primary frequency modulation performance of a generator set. The comprehensive evaluation method comprises the following steps of determining an index for evaluating the primary frequency modulation performance of the generator set; performing normalized processing on the index for the primary frequency modulation performance of the generator set; determining the weight of the index for the primary frequency modulation performance of the generator set by a subjective and objective weight combination method; and evaluating the grade of the primary frequency modulation performance of the generator set based on a matter-element extension method. According to the comprehensive evaluation method, the dynamic primary frequency modulation performance index is introduced; the advantages of the subjective weight and the objective weight are combined to solve the weight of the primary frequency modulation performance index; the comprehensive evaluation for the primary frequency modulation performance of the generator set can be carried out based on the matter-element extension method; and in addition, the evaluation result is objective, reasonable and safe, so that foundation is laid for assessment of a dispatching department of an electric power system.
Owner:STATE GRID CORP OF CHINA +2
Calculation method of solenopsis invicta situation area occurrence point
PendingCN114676287AReduce computing workloadData processing applicationsOther databases indexingCalculation methodsPoint set
The invention discloses a method for calculating a solenopsis invicta situation area occurrence point, and the method comprises the steps: 1, constructing edges of to-be-processed points and processed points, constructing edges between the to-be-processed points, and setting the state of each point in a gathering point set where the processed points having edges with the to-be-processed points are located to be to be processed; 2, setting attribute degrees and values smaller than degree points for all the to-be-processed points, 3, constructing N aggregation point sets for all the to-be-processed points based on the attribute values of the degrees and the values smaller than the degree points, N being greater than or equal to 1, and each constructed aggregation point set being an effective point for calculating the ant situation occurrence area, the central point of the constructed aggregation point set and other points have edges, the numerical value of the attribute'degree 'of the central point is the maximum, and if a plurality of points with the maximum numerical value of the attribute'degree' exist, the point with the maximum value of the attribute'less than the degree point number 'is selected as the central point; and step 4, ending the method.
Owner:ZHONGKAI UNIV OF AGRI & ENG +1
Attitude adjustment platform for two-degree-of-freedom camera and sonar
ActiveCN111516809AAvoid non-convergenceReduce computing workloadNavigational aid arrangementsUnmanned surface vesselsSonarCrank
The invention provides an attitude adjustment platform for a two-degree-of-freedom camera borne by an unmanned ship, and a sonar. The platform comprises a platform main body (11), a cross rod (12), arear upper push rod (13), a rear lower push rod (14), a front lower push rod (15), a front upper push rod (16), an inertial sensor (U4) and a crank double-slider mechanism. The platform is characterized in that the bow of the unmanned ship is provided with a vertically-through trunk; an opening at the upper end of the trunk is open; an opening at the lower end of the trunk is closed with a sonar dome; the platform main body (11) is of a long-barrel-shaped structure and is vertically located in the trunk; the platform main body (11) is installed on the cross rod (12) through a bearing; the cross rod (12) penetrates through the mass center of the platform main body (11); and a guide groove in the vertical direction is formed in the platform main body (11). The attitude adjusting platform issimple in structure and high in reaction speed; the camera of the unmanned ship and the platform body of the underwater detection sonar can be connected with the motion state of the rocker arm of a steering engine, and rolling caused by steering is rapidly compensated by the attitude stabilizing platform.
Owner:SHANGHAI MARINE EQUIP RES INST
A method to quickly obtain the relative peak position of a large amount of data
ActiveCN103425879BImprove work efficiencyReduce computing workloadSpecial data processing applicationsPeak valueComputer science
The invention relates to a mass data correlation peak position fast obtaining method. The mass data correlation peak position fast obtaining method comprises a step 1 of re-sampling of data to be processed, a step 2 of correlation operation of samples of the re-sampled data, a step 3 of raw data interception, a step 4 of correlation operation of samples of the intercepted data, and a step 5 of calculation for obtaining correlation peak positions of raw data. The mass data correlation peak position fast obtaining method can solve the problems that in a common method, when mass data correlation peak positions are to be obtained, the number of operations is too large and the operation time is too long, thereby mitigating the adverse effect that a data processor needs to operate in an overloaded mode for a long time.
Owner:BEIJING INST OF RADIO METROLOGY & MEASUREMENT
Program grade invasion detecting system and method based on sequency mode evacuation
ActiveCN1333553CIncreased complexityImprove work flexibilityData switching networksSpecial data processing applicationsProcess moduleAnomaly detection
A program level intrusion test system and a method is composed of a control module, a data collection and pre-process module, a training module, a storage module, a test module and a result output module matched on a monitored server. Said system applies an abnormal test technology based on data excavation, which tests various kinds of attack actions in the network by monitoring the operations of the privilege program in the server, that is, taking the system calling generated from privilege program operation as the audit data, utilizing the sequence mode in data excavated technology to express the normal behavior of a privilege program, excavating normal sequence mode in training data and setting up a related normal sequence mode library to identify the attack behavior by comparing the current with the normal sequence modes.
Owner:BEIJING CAPITEK
Display screen brightness and chrominance correction method and device based on mobile terminal
PendingCN114596809AIncrease flexibilityImprove experienceStatic indicating devicesHigh level techniquesComputer graphics (images)Radiology
The invention relates to a display screen brightness and chrominance correction method and device based on a mobile terminal. The correction method comprises the following steps: controlling a to-be-corrected area of a display screen connected with the mobile terminal to display a preset picture through the mobile terminal; collecting a first correction image when the preset picture is displayed in the to-be-corrected area through the mobile terminal; acquiring reference brightness and chrominance data; obtaining a brightness and chrominance correction coefficient of the to-be-corrected area according to the first correction image and the reference brightness and chrominance data; and sending the brightness and chrominance correction coefficient to the display screen to correct the area to be corrected. According to the invention, the brightness and chrominance difference of the display screen is eliminated based on the adjustment of the mobile terminal, so that the brightness and chrominance of the display screen are highly consistent, and the correction efficiency and the correction effect are improved.
Owner:XIAN NOVASTAR TECH
A tension and compression testing machine
ActiveCN104215508BGuaranteed stabilityUniform force distributionMaterial strength using tensile/compressive forcesPush and pullMobile bearing
Owner:TIANHE OIL GROUP HUIFENG GASOLINEEUM EQUIP
Image representation method and server
ActiveCN107766863BAvoid splitting the processReduce computing workloadCharacter and pattern recognitionNeural architecturesAlgorithmDimensionality reduction
The embodiments of the present application disclose an image representation method and server. The image characterization method includes: obtaining an image matrix set corresponding to a target image in a predetermined color space; performing dimensionality reduction processing on the image matrix set to obtain at least one dimensionality reduction matrix set; according to the first dimensionality reduction matrix set of the dimensionality reduction matrix set , the second dimensionality reduction matrix, and elements with the same two-dimensional coordinates in the third dimensionality reduction matrix are operated according to a preset algorithm, and the screening matrix corresponding to the dimensionality reduction matrix set is output; based on the screening corresponding to the dimensionality reduction matrix set matrix, performing data screening on the dimensionality reduction matrix set to obtain at least one representation matrix set of the target image; wherein, the representation matrix set includes a first representation matrix, a second representation matrix and a third representation matrix. The image characterization method and server provided in the present application can reduce the computational workload generated when acquiring the characterization data of the target image.
Owner:ALIBABA GRP HLDG LTD
Rapid imaging device and method for millimeter wave security check
PendingCN112666625AReduce processing timeHigh precisionOptical based geological detectionRapid imagingRadiology
The invention provides a rapid imaging device and a method thereof. The rapid imaging device comprises an auto-focusing module configured to determine an effective imaging area of a subject, and a three-dimensional tomographic imaging module configured to perform a plurality of tomographic images based on the effective imaging area obtained by the auto-focusing module, and obtain a final image based on tomographic imaging results obtained by the plurality of tomographic images.
Owner:TSINGHUA UNIV +1
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