106 results about "Incremental methods" patented technology

A system and method for mail server backup. In one embodiment, the method may comprise storing one or more messages on a mail server, where each message is associated with an index time. The method may then perform a full backup by storing each message and a backup time associated with the full backup on a backup medium, and perform a partial backup by storing selected messages on the backup medium dependent upon a difference between the index time associated with each message and the backup time. In one embodiment the partial backup may be performed by backing up each message that includes an index time that is dated after the backup time. In a further embodiment, each message on the mail server is contained in a mail folder object, and storing the backup time may comprise modifying a data member of the mail folder object.

An efficient computer implemented method computes critical area for via blocks in Very Large Scale Integrated (VLSI) circuits. The method is incremental and takes advantage of the hierarchy in the design. In order to increase the efficiency further we use the Linfin or the L1 metric instead of the Euclidean geometry.

The present invention provides a method and apparatus for detecting and preventing a plurality of denial of service (DOS) and distributed denial of service (DDOS) attacks. The apparatus includes classifiers for parsing packets; meters storing statistics for the classified packets and detecting flood thresholds; an Ager for maintaining timeouts; a decision multiplexer for multiplexing inputs from various meters and determines whether to allow or deny the packet; and a threshold estimation means for estimating thresholds based on past data from meters, baselines, trends and seasonality. The apparatus includes a PCI interface through which a host can interact, learn continuously and set thresholds in a continuous and adaptive manner so as to prevent rate based DOS and DDOS attacks. The apparatus includes a mechanism to track culprit sources at layer 2 and layer 3 through a multiplicative increment method.

An efficient method to compute critical area for shorts and breaks in rectilinear layouts in Very Large Scale Integrated (VLSI) circuits. The method is incremental and works in the L INFINITY geometry and has three major steps: Compute critical area for rectilinear layouts for both extra material and missing material defects (i.e., shorts and opens) by modeling defects as squares (which corresponds to the L INFINITY metric) instead of circles (Euclidean geometry). Treat the critical region for shorts and opens between any two edges or corners of the layout as a rectangle that grows uniformly as the defect radius increases. This is valid for rectilinear layouts and square defects (L INFINITY metric) . Use an incremental critical area algorithm for shorts and opens, which are computed for rectilinear layouts assuming square defects. Non-rectilinear layouts are approximated, first, by a rectilinear layout using a shape processing tool. The critical area for the rectilinear approximation is computed using the preferred incremental method.

A method for dynamic scene modeling and change detection applicable to motion analysis utilizes optical flow for capturing and modeling the dynamics of the scene. Uncertainties in the measurements are evaluated and utilized in order to develop a robust representation of the scene in a higher dimensional space. In another embodiment, a dynamical model of the scene is developed that utilizes multiple past frames to predict the next frame. Incremental methods for updating the model are developed and, towards detection of events, a new measure is introduced that is based on a state-driven comparison between the prediction and the actual observation.

The invention relates to a method and a device for measuring harmonic impedance. Aiming at the main error source in an 'incremental method' of the method for measuring the harmonic impedance, namely the problem of the synchronization of frequency deviation and two different time signal phase angles, the invention discloses a 'bisynchronous incremental method', and develops a corresponding testing instrument, wherein the first synchronization is that a reference phase is synchronized with the system cycle to solve the drifting problem of the reference phase; and the second synchronization is that the sampling frequency is synchronized with the system frequency by tracking the changes of the system frequency by a hardware phase lock circuit and generating the sampling frequency by the phase lock circuit. The device for measuring the harmonic impedance comprises a synchronous circuit of the sampling frequency and the system frequency and a synchronous circuit of the phase and the system cycle. The 'bisynchronous incremental method' solves the error problems caused by benchmark reference phases, system frequency fluctuations and the like in the 'incremental method'; the device has a simple principle and is easy to implement; and the method and the device reach the engineering application level and solve the problem of measuring the harmonic impedance in the generation of electricity.

The invention is suitable for the solar energy field and provides a method and a device for tracking a maximum power point of a photovoltaic array. In an embodiment of the method and the device, the maximum power point tracking method with high dynamic steady-state performance is an electric conducting incremental method based on variable step and power forecast. The maximum power point tracking method can avoid defects of methods such as a conventional electric conducting incremental method and a variable step electric conducting incremental method, improves dynamic tracking speed and steady-state tracking accuracy, effectively restrains oscillation and erroneous judgment, and tracks the maximum power point in real time and accurately.

The invention discloses a track generating method facing toward complex curved surface processing and a track generating system thereof. The track generating method includes that a to-be-processed complex curved surface is chosen and a standard template library (STL) file is generated; layer dividing direction and layer dividing thickness are determined; group dividing is conducted on a triangular patch; the point of intersection is obtained by an incremental method; a coordinate minimum value point of each section point of intersection gather in the direction of being vertical to the layer dividing direction is found out, another point of intersection of the same triangular patch is searched and connected with the minimum value point, and the process continues until the outline of each tangent plane is obtained and eventually the generating route track is obtained. The track generating system comprises an industrial personal computer (PC), a motion controller, a servo driver and an industrial robot body. The industrial PC generates three-dimensional to-be-processed components into a scattered control point set and transmits the control point set to the motion controller. The motion controller conducts an interpolation calculation on the control point set and outputs pulse trains to the servo driver, and drives the industrial robot body to conduct coordinated movement in a torque control mode. The track generating method facing toward complex curved surface processing and the track generating system thereof have the advantages of small calculation quantity, short calculation time, and high calculation efficiency.

The invention relates to a compound control method for the fast and accurate tracking control of the maximum power of a photovoltaic power generation system The photovoltaic power generation system samples the output voltage upv, the current ipv and the working temperature T of the current time of a photovoltaic battery array in real time; photovoltaic output power Ppv (k) is calculated on line and compared with the power Ppv (k-1) of previous time; and if power deviation is larger than a set error range e, a controller fast regulates the output voltage upv by adopting a constant voltage improvement control method till the output power deviation is smaller than the set error range e and then carries out the further accurate tracking control of the maximum power by adopting an admittance incremental method till power error is approximately equal to zero, therefore the purpose of the fast tracking control is achieved. The compound control method can be applied to a photovoltaic power generation MPPT (Maximum Power Point Tracking) control system controlled by adopting an MCU (Microprogrammed Control Unit) or DSP (Digital Signal Processor) chip and has the characteristics of fast response and accurate control.

The invention discloses an updating method of hybrid application. The hybrid application comprises modules divided based on functions; every module is respectively packaged by different containers. The method comprises: in the operating process of the hybrid application, when the updating operation of any module not being operated currently is triggered, obtaining the latest version number of the module from a server; when the latest version number is higher than a current version number, sending the current version number to the server so that the server determines the updating package corresponding to the current version number of the module, wherein the updating package is generated by a minimum incremental method; after the updating package is obtained from the server, assembling the updating package and the installation package of the current version of the module, thus obtaining the installation package of the latest version of the module; and installing the installation package of the latest version to the container for packaging the module, thus updating the module. The minimum granularity of the hybrid application is module; updating of the hybrid application is based on dynamic updating of the modules; and the normal operation of the whole hybrid application is not influenced.

Systems and methods are disclosed for acquiring various data from multiple sources that correct, format, package, and distribute data to end users. A data warehouse entity retrieves data acquired through a download interface in a format specified by the vendor, converts data into a standard or predefined data format, packages the standard format data, and distributes data to end users through a distribution interface. An incremental approach for updating data facilitates corrections to provide accurate reliable data. The data warehouse is populated with data from various vendors via a database containing data by downloading data file(s) from the individual vendor sources, parsing the data file(s) to a standard format, deleting duplicate data, and updating data if corrections or new data are identified. Newly formatted data files containing corrections and new data are exported to the location in which that vendor's data is located, checked to maintain quality, packaged into a single compressed file, tested in a test database system, and distributed to end users. The data warehouse is automated by a software application that runs jobs from a queue in operating phases. The software application and job queue prioritizes the operations and creates a controlled flow of data into and out of the data warehouse. Process operations are prioritized for integrity and throughput.

The invention discloses a forward osmosis membrane bioreactor / reverse osmosis combined fresh water increasing method, which comprises the following steps: setting the first-stage and second-stage forward osmosis membrane components in the forward osmosis membrane bioreactor, after pretreatment The sewage water flow B is input into the forward osmosis membrane bioreactor, the pretreated seawater flow A is input into the first-stage forward osmosis membrane module, and the output water flow C is boosted by the booster pump and then input into the reverse osmosis membrane module for liquid Membrane separation, the output product water flow D becomes finished fresh water after being sterilized by the sterilizer, and the remaining concentrated brine flow E is input to the second-stage forward osmosis membrane module for infiltration, and the output water flow F is discharged to the sea, and is set in the forward osmosis membrane biological The aerator at the bottom of the reactor is used for aeration. The method of the invention improves the water recovery rate of the reverse osmosis desalination system and reduces system energy consumption; reduces the sea discharge concentration of seawater desalination concentrated brine; improves the flux of the forward osmosis membrane, prolongs the service life of the membrane, and improves the system water recovery rate.

A system for a community-wide health information infrastructure incorporates applications of information technology in conjunction with an incremental approach that creates incentives for voluntary participation for health care providers, payers, and patients from the onset. It identifies the hierarchical importance of categories of medical and health information and sets forth a systematic approach to utilize that hierarchy to establish a composite personal medical or health record for each individual.

The invention discloses a software automatic testing method and device, and relates to the technical field of software automatic testing. The method comprises the following steps of: acquiring a patch pack with a patch version number, and carrying out updating on a corresponding software package in a software system; according to the patch version number, screening out the updated software package; and by operating a test case configured to the screened updated software package, testing the updated software package. According to the software automatic testing method and device disclosed by the invention, the software system is automatically tested by applying an incremental method, time of each automatic testing process can be saved to a great degree, and the aims of rapid modification, rapid verification, rapid feedback and rapid iteration are fulfilled.

The invention discloses an incremental gradient improving decision-making tree updating method. The incremental gradient improving decision-making tree updating method comprises the following steps: A, sequencing and merging an incremental data set and an original data set to acquire the current newest sequential data set; B, calculating the newest optimal splitting attribute and splitting value of each node on the current newest sequential data set separately; and C, updating data classification models by utilizing the comparison result of the newest optimal splitting attribute and the optimal splitting attribute of the node before a new data block arrives. By the incremental gradient improving decision-making tree updating method, the existing data classification models can be quickly updated by an incremental method before new data sets arrive in batches, a new gradient improving decision-making tree classification model does not need to be trained again, and updating is conducted on the basis of the existing models, so that the time of establishing the data classification models is greatly reduced, the training speed of the models is increased and a large amount of time cost is saved.

A system and method for mail server backup. In one embodiment, the method may comprise storing one or more messages on a mail server, where each message is associated with an index time. The method may then perform a full backup by storing each message and a backup time associated with the full backup on a backup medium, and perform a partial backup by storing selected messages on the backup medium dependent upon a difference between the index time associated with each message and the backup time. In one embodiment the partial backup may be performed by backing up each message that includes an index time that is dated after the backup time. In a further embodiment, each message on the mail server is contained in a mail folder object, and storing the backup time may comprise modifying a data member of the mail folder object.

The invention discloses a tracking control method for the maximum power of a photovoltaic power generation system. According to the method, a self-adaption variable step resistance incremental method is based, the dynamic performance and the steady-state performance of a photovoltaic system are integrated into account, and a photovoltaic cell output P-U characteristic curve is demarcated through a step transfer function introduced. According to photovoltaic cell parameters supplied by a photovoltaic cell manufacturer, two different fixed step sizes in fixed step zones on the left and right sides of a maximum power point are selected when the system is operated in a fixed step mode, the different fixed step sizes meet certain proportional relation, and a speed factor of the system in variable step size mode is selected. In the condition of intensive change of the external environment, compared with a fixed step resistance incremental method, the self-adaption variable step resistance incremental method can improve the response speed and the steady-state accuracy of the system; when simulating slow change condition of the external environment in natural conditions, the self-adaption variable step resistance incremental method has good dynamic performance and steady-state performance, so that the method effectively improves the tracking speed and the stability accuracy at the maximum power point.

The invention relates to a peanut peptide malolactic bacteria beverage made from peanut and preparation method thereof. The preparation method comprises: baking the peanut kernels, soaking at the temperature of 30-35 degrees centigrade; grinding with water to obtain the slurry with fineness of 80-150mu; re-grinding twice under the pressure of 40MPa; heating the grinded slurry to boiling, preserving at the constant temperature of 90-100 degrees centigrade for 20-25 minutes; adding proper amount of white granulated sugar; cooling to 45-48 degrees centigrade; adding malolactic bacteria strains and acidic protease well domesticated by successive incremental method; standing at the constant temperature of 45-48 degrees centigrade for fermentation and biochemical reaction to obtain peanut peptide sour milk; diluting the well fermented peanut peptide sour milk by water, and adding white granulated sugar, sour additive and emulsifying agent; grinding by a 160-200mu colloid mill; finally performing a high pressure homogenizing treatment, and obtaining the peanut peptide malolactic bacteria beverage of the present invention.

The invention discloses an optimized design method for determining geometric parameters of intermediate construction for forming a panel veneer in multiple steps. The method comprises the steps of establishing a three-dimensional computer aided design (CAD) parametric model of the intermediate construction and final construction for forming the panel veneer in multiple steps; selecting the intermediate construction geometric parameters to be optimized; establishing a one-step method simulation model of the intermediate construction, and carrying out parameterization processing on the finite element mesh of the simulation model according to the selected geometric parameters; determining an optimization target and a constrain condition; selecting an appropriate optimization algorithm, starting the optimization process, and obtaining the optimized intermediate construction geometric parameters; updating the three-dimensional CAD model of the intermediate construction according to the optimized intermediate construction geometric parameter; and establishing an incremental method simulation model of multi-step forming to perform the verification, returning to re-establish a one-step simulation model of the intermediate construction if the incremental-method simulation model cannot meet the requirement, and repeating the optimization process until the satisfaction.

The invention relates to an incremental method for analysis of material component content based on infrared spectroscopy. The method includes the steps of: establishing a first regression model according to source domain infrared spectral data and source domain material component content; acquiring a standard sample of a target domain, and establishing a transfer model between target domain infrared spectral standard data and the source domain infrared spectral data; establishing a second regression model according to the first regression model and the transfer model; acquiring target domain infrared spectral incremental data and target domain material component content incremental data, utilizing the regression model to screen the target domain infrared spectral incremental data, and performing reservation if the data meet requirements; until the reserved quantity reaches a threshold, utilizing the new target domain standard sample to acquire a new transfer model and a new second regression model; and acquiring target domain infrared spectral test data, and acquiring the target domain material component content according to the target domain infrared spectral test data and the new second regression model. The method provided by the invention has high efficiency.

The invention discloses a service data processing method and device and a distributed internal memory database system. In the distributed internal memory database system, storage of various service internal memory databases can be reduced as the service data of users are stored in distributed internal memory database, and resultantly processing pressure of the system processing the service data is lowered. For the service data of the users in the distributed internal memory database, the distributed internal memory database system determines storage information of the service data of the users in the service internal memory databases of the distributed internal memory database by searching route internal memory databases after processing requests for updating the service data of the users, and according to the corresponding service internal memory databases of the storage information, the service data of the users is updated by an incremental method, so that accurate affair processing of the service data stored in the various service internal memory databases in the distributed internal memory database is realized.

A modeling method of AGC and LPC integrated control system based on incremental manner includes setting up model of AGC subsystem, setting up model of LPC subsystem, setting up interface between AGC subsystem and LPC subsystem, obtaining relation of forward and backward slide variables to band steel front-back tensile force and steel band inlet-outlet speed by incremental manner relational expression then back-calculating out speed variation of steel band inlet-outlet.

The invention relates to a method and device for temperature compensation of a MEMS sensor. The method comprises the steps of: collecting a plurality of sets of data of the sensor at different temperatures while the MEMS sensor is at a standstill, wherein each set of data comprises a sensor output value and a corresponding sensor temperature value at the moment; after the collection, firstly calculating an initial temperature compensation coefficient, then using an incremental method to continue the calculation of the temperature compensation coefficient; and calculating the static output compensation amount data of the sensor and the sensor output value after compensation according to the current temperature compensation coefficient. Because the software method is used to compensate by computer program, no additional hardware cost and additional physical space are added; with the incremental calculation method, the temperature compensation coefficient can be quickly calculated to reduce the waiting time; and the incremental calculation method is used to reduce the CPU burden and the memory footprint.

The invention provides a rapid high-precision photovoltaic array maximum power point tracking control method which combines a short circuit current method and a conductance incremental method and achieves complementary advantages of the two methods. Output voltage and output current of a photovoltaic cell are adopted to judge if a system is in motion of the left side of the maximum power point, if not, the system is enabled to be in motion of the left side of the maximum power point by means of the adjustment of a duty ratio; values of dP / dU are obtained, a value approximately equal to a short circuit current value I s is taken, the corresponding maximum power point current I meter ( I meter is equal to 0.92 I s) is worked out and applied to the control of the short circuit current method; the current is sampled and output, difference values of the sampling current at adjacent time are compared, when the difference value is greater than a setting range, that is, the system is in motion near the maximum power point, at the moment the system is switched to the conductance incremental method to run until the maximum power point is searched. The rapid high-precision photovoltaic array maximum power point tracking control method is quick in dynamic response and high in tracking precision, and at the same time, greatly reduces interference caused by a traditional short circuit current method to the motion of the system, and improves output efficiency of a photovoltaic cell.

The invention provides a method for using incremental variation level set to segment medical images fast; the method comprises the following steps of: firstly, selecting an initial boundary; adopting fast algorithms such as a narrow band method, etc. to solve the curve evolution process of the level set according to a subregion and the average grey level calculated by the initial boundary; extracting a zero level set, namely a new boundary; judging whether the stop condition is met or not, if so, segmentation results are obtained; if not, the movement of the boundary is used for leading to the change of regions; calculating the average grey level of a new region in the range of narrow band according to the increment; then carrying out the process of using fast algorithms such as a narrow band method, etc. to solve the curve evolution of the level set; finally obtaining the zero level set, namely the segmentation result; the invention adopts the incremental method to solve the average grey level in an iterative mode according to the dynamic change of pixel in the region and the region, and changes an analytical formula thereof into a progressive iterative formula, thus being capable of adopting the fast algorithms such as a narrow band method, etc., improving the segmentation efficiency largely and leading the model to have more practical significance.

The invention discloses a method for accurately controlling a trimming line of a turned edge under a complex curved surface. The method comprises the following steps of unfolding an edge-turned flange portion to a complex three-dimensional curved surface in an inverse manner according to the shape of a stamping part so as to obtain an approximate trimming line; trimming a plate which is formed and simulated by a previous working procedure to obtain an edge-turned blank; simulating forming of a turned edge by using a finite element incremental method; comparing a simulating result to an ideal shape; measuring deviation epsilon between grid nodes at the border of the turned edge and an ideal workpiece; performing proportional compensation on the nodes along the normal direction of the trimming line according to the comparison deviation epsilon; correcting the trimming line; and trimming the turned edge again and simulating forming of the turned edge again by using the corrected trimming line until the deviation of the simulating result is controlled within a set value delta. By the method, the trimming line of the turned edge can be accurately determined, the trimming line of the turned edge under the complex three-dimensional curved surface can be accurate and reliable, the quality of forming of the turned edge is effectively improved, and the mold manufacturing and producing cost is reduced.

An automatic tuning control method for compensating susceptance incremental method arc-suppression coil, wherein the arc-suppression coil is judged as ''main tuning'' machine or ''non primary tuning'' machine based on the bar coupler off-on state on the time of feeding the arc-suppression coil. Unbalanced voltage of electric network, electric network phase electric potential and compensation current of the arc-suppression coil are then measured; the controller controls toned arc-suppression coil, and a compensation susceptance increment is applied to the electric network, then the unbalanced voltage of electric network, the electric network phase electric potential and the compensation current of the arc-suppression coil are measured again, further a required compensation current outputted by the ''primary tuning'' arc-suppression coil for the ''whole compensation'' of the electric network is calculated. When the electric network running normally, the variation of the electric network unbalance degree is monitored real time through the increment value of the electric network neutral point unbalanced voltage, and the ''primary tuning'' or ''non primary tuning'' machine status of the tuning-controlled arc-suppression coil are altered based on the various, or the required compensation current outputted by the ''primary tuning'' arc-suppression coil for the ''whole compensation'' of the electric network is calculated again.

The present invention relates to an oral insulin enteric-coated capsule and the preparation method, the raw materials use the insulin powder: each capsule has 10 units; excipients adopt medical starch: each capsule has 0.09g of starch granules and 0.01g of starch, the capsule adopts the common enteric-coated capsule, the medical starch is placed in a mixer, the starch paste is prepared into the soft material, a 20 mesh nylon screen is used for granulation, a 18 mesh screen is used for size stabilization after drying, then the starch is transferred into a mixing department for cooling, fine powder is screened out, and the remaining starch granules are ready for use; 2. the screened fine powder and the insulin fine powder are mixed fully and mixed evenly according to the incremental method and then are fully mixed with the starch granules which are produced in step 1; 3. the powder is transferred to a capsule filling department, an automatic capsule filling machine is used for filling; 4. the capsule after the filling is transferred to an aluminum foil packaging department for packaging after the polishing; 5. the capsule is transferred into a packaging room for packaging after the aluminum foil and then is transferred to a refrigerator chamber after completion. The present invention applies the oral insulin enteric-coated capsule for treating diabetes, the cost is low, the efficacy is good, the administration is easy, and the patients can avoid the suffering of the injection.

The invention relates to Omega-3 yoghurt powder and a preparation process of the Omega-3 yoghurt powder. The Omega-3 yoghurt powder is prepared from the following components in parts by weight: 15-25 parts of linseed oil microcapsule powder, 70-83 parts of milk powder and 2-5 parts of probiotic powder. The preparation process comprises the steps of mixing the above components with an equal incremental method until the milk powder is completely added and is mixed uniformly with the linseed oil microcapsule powder and the probiotic powder and carrying out vacuum nitrogen-filling packaging with a bacteria-free aluminum foil bag in a vacuum nitrogen-filling packaging machine. The prepared Omega-3 yoghurt powder can be stored at normal temperature, has long shelf life, has multiple health functions, can be dissolved into water easily and scattered to form yoghurt liquid, can be instantly drunk directly with warm water at 30-37 DEG C, can be fermented for 6-8h at 40 DEG C after being dissolved into water, can effectively adjust the intestinal flora balance, improve the intestinal function, promote nutrient absorption and boost immunity, can promote the growth of the brain cell, intelligence and the optic nerve system, can improve memory, and can prevent and improve the chronic diseases such as cardiovascular and cerebrovascular diseases, cancers and diabetes.