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119 results about "Methods statistical" patented technology
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Method and system for multi-dimensional analysis of message service data
InactiveCN101197876AShorten the development cycleReduce development costsSupervisory/monitoring/testing arrangementsData switching networksAnalysis dataRelational database
The invention discloses a method and a system for making multi-dimensional analysis to message class service data. The steps of the invention comprise a data collection step and a data integration step; a data conversion and loading module is responsible for converting the data in a middle database into a relational database with star framework characteristic, settles various data to be analyzed of message class service, classifies the data with common or similar characteristics and brings the data into a unified dimension hierachy; the data in the middle database is further cleaned and converted to be processed into another multi-dimensional database; and a data analysis and presentation step is included. The corresponding system comprises a data collection module which is independently arranged, the data conversion and loading module and a data analysis and presentation module. With the invention, the multi-dimensional data model can be shared in similar value-added service system, the development cycle and cost of the system can be reduced. To apply the function of multi-dimensional data analysis possessed by the system established by the model can provide operators and equipment manufacturers with more flexible and convenient data statistic method and decision support.
Owner:ZTE CORP
Method of analyzing industrial food products, cosmetics, and/or hygiene products, a measurement interface for implementing the method, and an electronic system for implementing the interface
InactiveUS7577530B2Easy to measureTesting beveragesTesting dairy productsElectronic systemsPattern perception
Owner:DANONE
Method for remote sensing analysis be decorrelation statistical analysis and hardware therefor
InactiveUS6018587AHigh sensitivitySmall data amountRaman/scattering spectroscopyRadiation pyrometryStatistical analysisPrincipal component analysis
A method for remote scenes classification comprising the steps of (a) preparing a reference template for classification of the remote scenes via (i) classifying a set of reference scenes via a conventional classification technique for obtaining a set of preclassified reference scenes; (ii) using a first spectral imager for measuring a spectral cube of the preclassified reference scenes; (iii) employing a principal component analysis for extracting the spectral cube for decorrelated spectral data characterizing the reference scenes; and (vi) using at least a part of the decorrelated spectral data for the preparation of the reference template for remote scenes classification; (b) using a second spectral imager for measuring a spectral cube of analyzed remote scenes, such that a spectrum of each pixel in the remote scenes is obtained; (c) employing a decorrelation statistical method for extracting decorrelated spectral data characterizing the pixels; and (d) comparing at least a part of the decorrelated spectral data extracted from the pixels of the remote scenes with the reference template.
Owner:APPLIED SPECTRAL IMAGING
Mass performance data statistical method in network element management system
ActiveCN1747398AReduced by orders of magnitudeImprove statistical efficiencyData switching networksSpecial data processing applicationsInclusion relationApplication server
The network element management system includes database server and application server. The performance reporting table is set in the database server for use in saving the reported performance data. The method includes following steps: 1) the table for storing different time grain size data is set in database server, and the grain size presents the data reporting time, and there is inclusion relation between grain sizes; 2) The application server periodically merges the reported performance data according to time grain size, and then saves it into grain size data storing table; 3) when the performance statistics is made for mass performance data in the network element management system, the application server retrieves the data storing table relating to grain size according to the grain size required by statistics.
Owner:DATANG MOBILE COMM EQUIP CO LTD
Passenger flow volume detection method and system based on computer vision
InactiveCN101321269ASolve occlusionReduce difficultyImage analysisClosed circuit television systemsCounting NumberVideo image
The invention discloses a passenger flow statistics method based on a computer visual perception and system thereof. A video image collecting device can be placed at top end of an entrance or an exit of passages such as airport, subway, railway station, bus station, exhibition and so on to collect video images of passenger flows. A processor processes the video images collected by a computer visual perception algorithm to obtain a characteristic point of the image and to obtain a characteristic point trace by processing continuous image sequences within a period of time. Restricting the characteristic trace in time-space obtains smooth and continuous trace and clusters obtained characteristic traces to obtain number of passenger flows so as to obtain real time and accurate passenger flow information. The invention combines visual device and algorithm of computer to count number of the passenger flow accurately under a compact passenger flow circumstance. The obtained passenger flow information can be used as ground of safety monitor, operation management and line layout.
Owner:TONGJI UNIV
Quality control method of road continuous traffic flow data
The invention provides a quality control method of road continuous traffic flow data, and the method comprises the following steps: firstly recognizing a fault stationary traffic data acquiring device by using a pattern recognition algorithm which seals cross sectional flow conservatism and a suspicious stationary traffic data acquiring device; then recognizing road real-time traffic flow data byusing a road traffic flow judgment rule; and finally, completing invalid and missing data by using a distribution value in the same period in the history and the adjacent coil data. The quality control method has the advantages that mass data stored in the existing database can be fully utilized to recognize and repair the fault device and effectiveness of the quality of the real-time data by virtue of a statistic method and a traffic flow theory by using space relation among traffic data, therefore, the effectiveness and integrality of the real-time data can be guaranteed, and a data supportcan be provided for various off-line and real-time applications such as the maintenance of the acquiring device, the traffic monitoring and guidance.
Owner:SHANGHAI SEARI INTELLIGENT SYST CO LTD +1
Method and System for Segmenting Moving Objects from Images Using Foreground Extraction
InactiveUS20110141251A1Image enhancementTelevision system detailsForeground detectionMethods statistical
Owner:MITSUBISHI ELECTRIC RES LAB INC
Communication data statistical apparatus, communication data statistical method, and computer program product
ActiveUS20100034109A1High speedData communicationEnergy efficient ICTError preventionNetwork packetData mining
An apparatus comprises a receiver module configured to receive packets including multiple different identifiers, an aggregation module configured to classify each packet, which is received by the receiver module into a certain aggregate flow and generate aggregate statistical information including number of packets belonging to the certain aggregate flow, and a statistical processing module configured to perform an updating process arranged to classify the certain aggregate flow into a specific statistical flow and to update statistical information including number of packets belonging to the specific statistical flow based on corresponding aggregate statistical information, the statistical processing module repeating the updating process for multiple aggregate flows, into which packets are classified by the aggregation module, so as to update the statistical information in each of the multiple different statistical conditions.
Owner:ALAXALA NETWORKS
Continuously variable transmission system achieving multi-mode switching of hybrid power
ActiveCN109723789ARealize stepless speed changeCompact structureFluid gearingsQ-switchingMode switching
The invention provides a continuously variable transmission system achieving multi-mode switching of hybrid power. The continuously variable transmission system comprises an input component, an outputcomponent, a clutch assembly, a brake, a hydraulic transmission assembly and a planetary gear assembly. The input component is connected with the hydraulic transmission assembly. The output componentis connected with the planetary gear assembly. The clutch assembly connects the input component and the hydraulic transmission assembly to the planetary gear assembly. The brake and the clutch assembly provides the transmission ratio of continuous advancing or retreating between the input component and the output component. Through linear increase or non-linear increase of the displacement ratioof the hydraulic transmission assembly, hydraulic-mechanical transmission is converted into mechanical transmission. Integrated control can be carried out through a dual power source adopting an engine and an electromotor as power and the transmission and composite transmission adopting hydraulic transmission, mechanical transmission and hydraulic-mechanical transmission as the transmission manner, the statistical method based on test data is used, and matched energy management strategies are provided.
Owner:JIANGSU UNIV
Microlen array based laser beam divegence angle testing method
InactiveCN101013030AAvoid the difficult problem of not easy to measure accuratelyConveniently Realize Real-Time MeasurementsLaser detailsUsing optical meansObservational errorLight spot
The invention is a laser beam divergence angle testing method based on the micro-lens array, and the invention belongs to the optical field, specifically relating to the laser beam divergence angle testing method. It overcomes the existing deficiencies of the existing beam scattered angle method with larger measurement error and less measurement real-time feature. It includes the following steps: the measured beam is incidence to the telescope system, matching the output beam diameter and the micro-lens array shape, and the micro-lens array contains mXn matrix sub-lens; using micro-lens array to divide the measured beam into the sub-beams, and through CCD to detect the launch angle of each sub-beam, and through statistical method to calculate the measured beam divergence angle, the measurement accuracy reaching 0.1mu rad. Because this method does not require the measurement light spot diameter, it avoids the problem that the light spot diameter is difficult to be accurately measured. This method in the invention is only measuring in the one position of the optical path; therefore the method can facilitate to realize the real-time measurement of the beam divergence angle.
Owner:HARBIN INST OF TECH
Device and method for counting regional space population
ActiveCN102750539AQuick statisticsStatistics, can quickly count the number of people in real timeCharacter and pattern recognitionClosed circuit television systemsHuman bodyComputer module
The invention relates to a device for counting regional space population. The device comprises an acquisition module (10), a video processing module (20), a rejecting module (30), a storage module (40), a human body target identification module (50), a data processing module (60) and a data output module (70) which are sequentially connected. A method for counting the regional space population comprises the following steps of: acquiring image information and infrared temperature information of a monitored region simultaneously; according to the infrared temperature information, rejecting targets inconsistent with human body temperature in the monitored region; identifying human bodies in the monitored region; counting the number of the identified human bodies; and outputting a result. The device is simpler than a system and is convenient to use; and the use method can be easily identified by a computer system, the detection speed is quick, the occupied memory is less, and the number of population in a regional space can be effectively, quickly and accurately counted.
Owner:SHENZHEN HIETECH ENERGY TECH
Statistical, noninvasive measurement of intracranial pressure
ActiveUS8512260B2Ultrasonic/sonic/infrasonic diagnosticsPhysical therapies and activitiesFeature extractionMedicine
Tools and techniques for the rapid, continuous, invasive and / or noninvasive measurement, estimation, and / or prediction of a patient's intracranial pressure. In an aspect, some tools and techniques can predict the onset of conditions such as herniation and / or can recommend (and, in some cases, administer) a therapeutic treatment for the patient's condition. In another aspect, some techniques employ high speed software technology that enables active, long term learning from extremely large, continually changing datasets. In some cases, this technology utilizes feature extraction, state-of-the-art machine learning and / or statistical methods to autonomously build and apply relevant models in real-time.
Owner:UNIV OF COLORADO THE REGENTS OF
Method for detecting and identifying time-constant patterns in video signals of any video source, particularly for the detection of advertising spots in television broad-castings, and device for performing such a method
InactiveUS6845213B2Television system detailsColor signal processing circuitsPattern recognitionSufficient time
Owner:MAAS +2
Apparatus, method, and program for image processing
InactiveUS20070086639A1Accurately inferredAccurate representationImage enhancementImage analysisPattern recognitionImaging processing
Owner:FUJIFILM CORP
Statistical method of traffic flow
ActiveCN103413046ADetection of traffic movementCharacter and pattern recognitionTraffic capacityReal-time computing
The invention discloses a statistical method of traffic flow. The method includes the steps of defining a lane which in the shape of a closed polygon; detecting vehicles of the current frame, and forming an observation list for the vehicles of the current frame, locating in the lane; predicting the states of the vehicles in a prior vehicle list; calculating correlation between the vehicles in the observation list and the vehicles in the prior vehicle list, and according to the different correlations, updating the states of the vehicles in the prior vehicle list, correlated to the vehicles in the observation list, by the states of the vehicles in the observation list, adding the vehicles in the observation list to the prior vehicle list or deleting the corresponding vehicles in the prior vehicle list. The states of the vehicles in the prior vehicle list include location, speed and size of the vehicles in the prior vehicle list. According to the statistical method of vehicles, all vehicles locating on the lane are accurately tracked by comparing the vehicles in the observation list to the vehicles in the prior vehicle list, so that accurate traffic flow statistics is achieved.
Owner:艾智科技技术(深圳)有限公司
Statistical method for electric machine optimization used for electric drives
A method is provided for selecting and optimizing an electric drive system by analyzing critical-to-quality subjects of the electric drive system according to Six Sigma theory. The critical-to-quality subjects include weight, volume, reliability, efficiency and cost. Various design approaches may be evaluated to select an optimal design. The design approaches may include electric machine type, cooling system, electrical integration and electrical-mechanical interface.
Owner:HONEYWELL INT INC
Two-phase fluid flow pattern identification method based on time sequence and neural net pattern identification
InactiveCN1664555AAvoid the influence of human subjective factorsAccurately getFlow propertiesFlags/bannersFrequency functionData treatment
The invention relates to a method for identifying the flow pattern of the two-phase, which combines the nerval net pattern identifying technology with the traditional time series frequency function statistical method and identifies on line, real time and automatically. The method comprise the following steps: a)processing the flow parameter time series of different flow pattern and getting the characteristic parameters of the frequency function of different flow pattern, b) setting the characteristic parameters as input samples, c) mapping from the measuring space to the flow pattern space by the nerval net identifying technology and identifying the flow pattern.
Owner:SHANGHAI JIAO TONG UNIV
Statistical method for subtitle rendering efficiency based on template
InactiveCN101394488ACalculate rendering efficiencyTelevision system detailsColor television detailsComputer graphics (images)Template based
The invention discloses a template-based statistical method of caption rendering efficiency, and belongs to the technical field of the caption editing and broadcasting of television program making and broadcasting mechanisms in radio and television broadcasting field. The method for assessing the caption rendering efficiency in the prior art is mainly based on the subjective evaluation and has the shortcomings of inaccurate assessment result, heavy workload and the like. The method firstly creates a rendering source model library and a rendering attribute model library according to a plurality of caption templates; caption objects are created according to rendering sources in the rendering source model library and rendering attributes in the rendering attribute model library; all the created caption objects are rendered, the rendering time of each caption object, the total time of the rendering and the total times of the rendering are recorded; and the rendering efficiency is calculated according to the rendering time of each caption object, the total time of the rendering and the total times of the rendering. The use of the method can more accurately calculate the caption rendering efficiency and simultaneously calculate the impact factors of the rendering attributes on the rendering efficiency more accurately.
Owner:CHINA DIGITAL VIDEO BEIJING
Statistical method and system for network visit
ActiveCN101119225AImprove efficiencyTwo-way working systemsSelective content distributionContent distributionEnd user
The present invention relates to a network visit statistical method which is used for the counting of the programs watched by the terminal user in the content distribution network. The content distribution network includes a central node server and a plurality of rim node servers, with the central node server storing all the programs and the rim node servers storing the most popular programs. The method includes the following steps: first, obtaining the actual watching time in each dialogue; second, counting the content marks of the aforesaid programs in each dialogue; last, summarizing all the marks of the aforesaid programs. The network visit statistical method provided by the present invention can reflect the popularity of the programs veritably, and the content distribution network can achieve reasonable distribution of the programs in the network according to the actual statistical result so as to improve the efficiency of the content distribution network.
Owner:NOKIA SOLUTIONS AND NETWORKS SYSTEM TECHNOLOGY (BEIJING) CO LTD
Dynamic multipoint grass variety identification and authentication method based on terahertz time domain spectroscopy
ActiveCN106248610AAvoid breakingValid identificationColor/spectral properties measurementsInvestigation of vegetal materialData treatmentSeed sample
The invention provides a dynamic multipoint grass variety identification and authentication method based on terahertz time domain spectroscopy. The method comprises the following steps: preparing a standard grass seed sample; respectively detecting the standard grass seed sample and dry nitrogen by using a terahertz time domain spectroscopy device to respectively obtain a terahertz pulse time domain waveform sum of the standard grass seed sample and the dry nitrogen, taking the terahertz pulse time domain waveform of the dry nitrogen as a reference signal, and taking the terahertz pulse time domain waveform of the standard grass seed sample as a sample signal; carrying out data processing on the terahertz pulse time domain waveform of the standard grass seed sample and the terahertz pulse time domain waveform of the dry nitrogen to construct a standard fingerprint spectrum library; and analyzing, calculating and establishing an identification database of unknown grass varieties according to optical parameters of the standard fingerprint spectrum library in combination with a mathematical statistical method, thereby carrying out qualitative analysis and recognition on unknown grass samples. By adoption of the method, the grass varieties can be effectively recognized and detected, the database can also be established for the unknown grass samples, and the unknown grass samples can be quickly distinguished and identified in batches.
Owner:CHINA UNIV OF PETROLEUM (BEIJING) +1
Method for monitoring voltage qualification rate by use of electric energy metering device
ActiveCN103412182AImprove accuracyImprove objectivityMeasurement using digital techniquesElectric power systemPower grid
The invention discloses a method for monitoring a voltage qualification rate by use of an electric energy metering device. The invention provides a method for monitoring a voltage qualification rate by use of an electric energy metering device in terms of voltage qualification rate monitoring equipment, voltage qualification rate monitoring locations, voltage qualification rate statistical methods, main station construction and the like. The electric energy metering device arranged on a power grid is used as a voltage qualification rate monitoring terminal, and the electric energy metering device is provided with continuous monitoring and a statistical function on voltage deviations caused by slow variations in a normal operation state of a power system. The method for monitoring voltage qualification rate by use of the electric energy metering device has the advantages of low revamping and implementation costs, improved accuracy and objectivity of statistical data on the voltage qualification rate and the like.
Owner:王成楷 +3
Method for setting intelligent electronic alarm clock based on applied statistical method and embedded computing
InactiveCN102193498AUse time efficientlySave time and costAcoustic time signalsStatistical analysisRing mode
The invention discloses a method for setting an intelligent electronic alarm clock based on an applied statistical method and embedded computing. The method comprises the following steps: carrying out data statistic analysis on the basic information of users (possibly comprise the personal information of users, and the weather condition and traffic situation information and the like required by the alarm clock) by the alarm clock so as to obtain an optimal ringing time, and setting three ringing modes, so that the alarm clock is more humanized and intelligentized, thereby solving a plurality of actual problems existing in common electronic alarm clocks; then, optimizing the obtained results, thereby obtaining the work-rest habits of the users, and then optimizing the function of the alarmclock, so that the alarm clock is more humanized and intelligentized.
Owner:NANJING UNIV OF POSTS & TELECOMM
Object statistical method and system based on images
ActiveCN104123776AImplement block monitoringEliminate duplicationCharacter and pattern recognitionClosed circuit television systemsComputer graphics (images)Software system
The invention provides an object statistical method and system based on images. The object statistical method comprises the steps of counting objects to be counted moving in a monitoring region, respectively monitoring part of regions in the monitoring region and the objects to be counted in part of the regions through a plurality of camera devices for monitoring the monitoring region, acquiring images, synchronizing the images in all the regions and splicing the images into a global image corresponding to the monitoring region, mapping the objects to be counted to the global image, identifying the identical objects to be counted, combining the objects, and counting the quantity or the flow of the objects to be counted in the monitoring region by tracking the combined objects to be counted in the global image, so that the monitoring region is enlarged, the repeated objects to be counted are eliminated through combination, and the flow is counted. The limitations, which are caused by the large monitoring region, in the counting of the objects which move wonderingly or do cross-region movement inside and outside the monitoring region in the prior art are eliminated; furthermore, conventional hardware equipment and conventional software systems are used to the maximum extent, and the development and maintenance costs are lowered.
Owner:WINNER TECH CO INC
Vehicle parking statistical method based on wireless transmission technique
ActiveCN101201974ARealize parking statistics functionImprove accuracyBeacon systems using radio wavesRoad vehicles traffic controlTime rangeLogistics management
The invention discloses a vehicle parking statistical method based on wireless transmission technology, which firstly stores relevant data of a vehicle in a database of a service center, then a vehicle-mount terminal of the vehicle collects position information and starts flameout signals at regular time to send the information at regular time to the service center that keeps the data, therefore, a vehicle manager can plan a parking scope or appoint parking time scope on a map to make parking statistic by visiting the service center through internet, then the service center shows records that comply with conditions in a way of a table and a map, thus the vehicle manager can directly judge whether the vehicle is parked legally or not. The method uses a GPS positioning system and a wireless transmission mode, which results in the possibility of parking statistics, ensures higher correctness and leads managers of logistic enterprises to easily check whether vehicles under the control have questionable parking records through the internet, thereby realizing the purpose of reducing logistic cost. The invention is applicable for all vehicles.
Owner:XIAMEN YAXON NETWORKS CO LTD
Method for quantitatively evaluating quality of dairy products
The invention relates to a method for quantitatively evaluating quality of dairy products and belongs to the field of food science. In the operational method, the mixing synthetic method is utilized to study the quantitative evaluation of the quality of UHT milk, sterilized milk, and fermented milk; three food quality evaluation indexes are selected, and the detection method is standardized; the standardized detection results are subjected to special so as to obtain the combined weightings of color, flavor and texture which are 0.280,0.385 and 0.334 for the UHT milk respectively, 0.240,0.383 and 0.378 for the sterilized milk respectively, and 0.239, 0.383 and 0.377 for the fermented milk respectively; and the index detection of each sample is subjected to positive and zero dimension treatment and mixing synthetic method statistical analysis, and finally the quantitative evaluation result of each sample is obtained. By comparing the evaluation result with the conventional marked evaluation result, the result obtained by the novel method is based on the strict mathematical statistics and realizes overall comprehensive quantization of various indexes, so that the randomness and the blindness are eliminated, and the defects of bigger influence of human factors and stronger randomness existing of the conventional evaluation method are effectively overcome.
Owner:SHANDONG AGRICULTURAL UNIVERSITY +1
Ultra-high frequency partial discharge detection graph characteristic parameter extracting method and abnormal detection method
ActiveCN107831409AHigh utility valueEasy to detectTesting dielectric strengthFeature vectorAlgorithm
The invention discloses an ultra-high frequency partial discharge detection graph characteristic parameter extracting method and an abnormal detection method. The ultra-high frequency partial discharge detection graph characteristic parameter extracting method comprises the steps that the values and coordinates of all data points on an ultra-high frequency partial discharge detection graph are extracted, and the ultra-high frequency partial discharge detection graph is converted into a PRPD data matrix; 2 for the PRPD data matrix, a statistical method is used to extract the characteristics ofa partial discharge pattern, and a feature vector is constructed to characterize the statistical distribution characteristics of the graph to serve as the classification basis for a partial dischargecategory. Characteristic parameters can be directly extracted from the unstructured partial discharge graph, and can be further used for subsequent abnormal partial discharge detection and identification based on the characteristic parameters. The method has a high practical value.
Owner:ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
Diagnostic and prognostic assistance device for physiopathological tissue changes
Said device applies in particular to in vivo diagnostic and prognostic assistance for physiopathological changes to biological tissues. It comprises a coherent light source (13) for emitting coherent light along a first direction (X), for the purpose of illuminating a biological tissue (16) in first and second areas thereof, the first area being sound and the second area liable to include changes, the tissue thus illuminated generating a speckle phenomenon, means (14) for observing the speckle field in a second direction (Y) and for acquiring the speckle, and means (18) for varying the angle between the first and second directions, in order to observe the speckle field at different angles, so as to acquire information about the tissue at various depths in this tissue, support and absorption means (20, 28) to maintain a constant distance between the surface of the tissue and the observation and acquisition means and to absorb possible movements of the tissue, electronic means (22) for processing the speckle figures obtained by means of the observation and acquisition means, said processing being carried out in particular by a fractal method, in order to compare the first and second areas, and electronic means (24) for analysing the processing of the figures, by statistical methods, making it possible to validate the comparison made between the first and second areas.
Owner:INSTITUT DE RADIOPROTECTION & DE SURETE NUCLEAIRE
Analysis method for optimizing cigarette sensory evaluation
InactiveCN107144672ASimple methodEffectively discern subtle differencesMaterial analysisLower limitTest sample
The invention relates to the technical field of sensory evaluation of tobacco products, in particular to an analysis method for optimizing cigarette sensory evaluation. The analysis method mainly comprising the following steps: comparing a test sample with a control sample on the aspects of fragrance quality, smoke feature, taste, style and the like according to a smoking evaluation method, and endowing evaluation indexes of cigarettes with weights according to the comments of smoking evaluation persons and the favorites of consumers; calculating the overall quality of a product and an average value, stability and tendency of the indexes by combining evaluation results of the smoking evaluation persons and a mathematical statistics method, and giving a definite center value, a target value and a lower limit value of the product. The evaluation method contributes to enhancing sensory quality control of cigarette products, and enhancing the quality stability of the cigarette products.
Owner:CHINA TOBACCO ZHEJIANG IND
Port based MAC address quantity statistical method and apparatus thereof
InactiveCN1567870AEasy to handleImprove performanceNumber-allocation/character-counting for messagesSupervisory/monitoring/testing arrangementsEthernetMAC address
The invention relates to a port-based MAC address number counting method, monitoring various conditions able to cause the change of the number of the MAC addresses, and regulating the number of the MAC addresses according to the types of these conditions. It largely speeds up the counting and enhances the Ethernet exchanger property and uses hardware circuit to realize so as to save large numbers of hardware resources, optimizing the design and reducing the cost. At the same time, it can not only accurately and real-timely count the MAC address number learned by network access device port, real-timely ensures the port safety but also ensure the counting for the MAC address number learned by corresponding port does not influence the other functions of the Ethernet network, i.e. it counts the learned MAC addresses and simultaneously does not influence the normal work of the Ethernet exchanger.
Owner:HUAWEI TECH CO LTD
Network data stream statistical method on basis of counting bloom filter
The invention discloses a network data stream statistical method on the basis of a counting bloom filter. The method comprises the following steps of: before the counting bloom filter carries out statistics, configuring parameters which comprise an error-tolerant rate, the total number of streams, the number of hash functions and the number of counters; hashing quintuple information of each data packet into the counters at the corresponding positions by the counting bloom filter; and using the minimum values in the corresponding counters as flow of the corresponding streams. The implementation of the network data stream statistical method has the following beneficial effects that under the condition of the preset number of the streams, rapid statistics of the flow and the number of the streams is implemented by a special parameter setting scheme and through using the counting bloom filter which is easy for hardware implementation; and in the high-efficiency hash setting process, overflow of the counters of the counting bloom filter is prevented by the expanded counters and the requirements for stream statistics and rapid storage of the quintuple information under the general conditions in a high-speed network can be met.
Owner:大连环宇移动科技有限公司 +1
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