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191 results about "Value type" patented technology
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Method and apparatus to facilitate the electronic accumulation and redemption of a value in an account
An automated system to facilitate redemption of value against a single purchase price includes a first module to allocate a first value, of a first value type, to a user within a transaction system. The first module is further to allocate a second value, of a second value type different from the first value type, to the user within the transaction system. A second module is to enable a user to redeem both the first value and the second value against a single purchase price.
Owner:PAYPAL INC
Payments with virtual value
Methods and systems for payments with virtual value are described. In one embodiment, a virtual value indication associated with a user from a virtual value provider may be received. Virtual value may be associated with a user account in response to receiving the virtual value indication. A payment request may be received. A portion of the virtual value associated with the account may be converted to a base value of a base value type at a conversion rate in response to the receiving of the payment request. The payment request may be processed for the account using the base value. Additional methods and systems are disclosed.
Owner:PAYPAL INC
Webpage information extraction method
InactiveCN102495892AQuality improvementSpecial data processing applicationsConcept AttributeText categorization
The invention discloses a webpage information extraction method, in particular a method for extracting concept attributes from a network encyclopedia data source and processing the concept attributes. The method comprises the following steps of: constructing an example list, and extracting candidate attributes of examples in the list from a multi-source heterogeneous data source; performing synonymic induction on the extracted attributes, and putting synonymic attributes in the same set; sub-classifying the induced attributes; analyzing the corresponding attribute value types of the classified attributes; and recommending the attributes and corresponding attribute value type information to a user, or storing the attributes and the corresponding attribute value type information into a structured database. By adoption of the scheme of the invention, high-quality concept attribute information can be extracted from a webpage, a knowledge base can be better constructed, and other natural language processing tasks such as extraction of attribute values, text classification and classification of query logs in a search engine can be better performed.
Owner:PEKING UNIV
Custom security tokens
ActiveUS20050044398A1Digital data processing detailsUser identity/authority verificationSerializationValue type
A sending computer system generates a message and creates one or more security tokens to encrypt portions of the message. The computer system includes in the message a markup language identifier for the one or more security tokens used for encryption, and includes identification of the value type used to create the tokens. The computer system then serializes at least the portion of the message that identifies the one or more security tokens, without serializing other portions of the message that aid relaying of the message to a receiving computer system. A receiving computer system deserializes at least the portion of the message that identifies the one or more security tokens, and then uses deserialized token data to decrypt encrypted portions of the message. Each created security token can be made with customized data and fields, and can be made with a customized value type.
Owner:MICROSOFT TECH LICENSING LLC
System and method for generating production-quality data to support software testing
Providing data as part of a testing regime for computer software. Random data values can be automatically generated to support the testing of any type of computer software that operates on data as part of its function. This random generation of data values can provide a breadth of data needed to fully stress the software program being tested. Data of any type can be provided to a testing regime and individual data elements may be related such that the provided data reflects realistic situations. Data can be extracted from data tables and / or generated through operating a function designed to generate a specific value type.
Owner:TOTAL SYST SERVICES
Source code annotation language
ActiveUS20050076331A1Useful in detectionMemory loss protectionError detection/correctionUsabilitySource code
Techniques and tools for implementing a source code annotation language are described. In one aspect, keywords are added to a function interface to define a contract for the function independent of function call context. In another aspect, annotations are inserted at global variables, formal parameters, return values, or user-defined types. The annotations include, for example, properties and qualifiers. A property can indicate, for example, a characteristic of a buffer. In another aspect, an annotation indicates that a value has usability properties sufficient to allow a function to rely on the value, where the usability properties depend on value type.
Owner:MICROSOFT TECH LICENSING LLC
Javadoc-based back-end interface document automatic generation method and apparatus
InactiveCN107463376ATroubleshoot out-of-sync issuesShorten the timeProgramming languages/paradigmsSpecific program execution arrangementsSoftware engineeringCode annotation
The invention discloses a Javadoc-based back-end interface document automatic generation method. The method specifically comprises the following steps of defining interface information in an interface file; performing description on the interface information by adopting Javadoc: describing code annotation and interface; performing automatic identification by adopting AST code analysis: identifying an input parameter, a return value type, a URL and abnormal data of the interface; and according to a definition of the interface and standard Javadoc, fully automatically generating an interface document. Through the AST code analysis technology, the back-end interface document can be fully automatically generated after all codes are changed in combination with the definition of the interface according to the Javadoc; and front-end codes can be generated according to interface data, so that the problem of desynchrony of the codes and the manually written interface document in the past is solved, the time for writing the interface document is saved, the situation of reworking caused by the problem of desynchrony of the interface document and the codes can be avoided, and the business system development efficiency is improved.
Owner:珠海牛角科技有限公司
Changeable class and pattern to provide selective mutability in computer programming environments
InactiveUS20050091637A1Increase flexibilityReduce the amount requiredProgramming languages/paradigmsSpecific program execution arrangementsBase classComputer programming
A changeable pattern and implementation is presented in which types (used in programming environments and virtual machines) may be mutable as controlled by a programmer, and share many of the benefits of value types, without the drawbacks of value types. The changeable pattern provides flexibility for restricting the modifiability of the resultant uses of the values, as well as providing a means for providing notifications upon changes. In one implementation, a single set of changeable types is provided that derive from a common Changeable base class, and any type for which mutability is desired may derive from the Changeable class. Properties associated with the changeable define state that determines cloning and / or changeability characteristics on subsequent uses of the type. True mutability is provided via a status property of next use being set to a changeable reference state such that subsequent uses of the type do not cause a state change.
Owner:MICROSOFT TECH LICENSING LLC
Signal processing method and device
InactiveCN104853339ARandomize signal interferenceImprove anti-interference abilityError preventionConnection managementInterference resistanceResource utilization
A signal processing method and device. The method comprises: when there is data to be sent, determining, by a user equipment, a generation manner of a pseudo-random sequence according to a type of the data to be sent; when the data to be sent is device-to-device communication data, conducting, by the user equipment, assignment on an initial value of the generated pseudo-random sequence according to a pre-defined rule, and generating the pseudo-random sequence according to the initial value; generating one or more of a scrambling sequence, a cyclic shift sequence or a pilot sequence according to the pseudo-random sequence; and processing the data to be sent using one or more of the scrambling sequence, the cyclic shift sequence or the pilot sequence. The embodiments of the present invention enable a UE to generate a pseudo-random sequence by using a pre-defined initial value type as an initialization parameter, to conduct scrambling, cyclic shift, pilot insertion and other processing on a signal to be transmitted, thereby playing roles of randomizing signal interference, enhancing the anti-interference capability, and improving the signal receiving accuracy rate and the resource utilization rate.
Owner:ZTE CORP
Unit test method and device
ActiveCN102855177AImprove maintainabilityImprove the efficiency of unit testingSoftware testing/debuggingMaintainabilityA domain
An embodiment of the invention provides unit test method and device and solves the problems that efficiency of unit test is low and maintainability is poor in the prior art. The unit test method includes receiving an input expected field and an input test value; searching a domain object from a pre-constructed domain object model base by a tested method, and / or searching a Mock class from a pre-generated Mock base; using the domain object and / or the Mock class to generate a test method of the tested method; and performing unit test to an original class by the test method. The expected field is a return value type of an attribute type of the tested method in the original class selected by a user.
Owner:ADVANCED NEW TECH CO LTD
Method and device for generating Mock base during unit test
InactiveCN102855178ARealize automatic generationImprove formation efficiencySoftware testing/debuggingSource codeUnit testing
The invention provides a method, a device and a system for generating a Mock base during a unit test. The method comprises the following steps of: acquiring each original class to be subjected to Mock of a source code to be tested; acquiring class parameters of each original class through reflection, wherein the class parameters comprise a method name, a parameter type and a returned value type; generating each Mock class corresponding to the original class according to the class parameters; and taking a set consisting of all Mock classes to form the Mock base. By the method and the device disclosed by the embodiment of the invention, the Mock base can be automatically generated, so that a large amount of labors and a large amount of resources are saved; under the condition that the requirement on the quality of codes is relatively high, the forming efficiency of the Mock base can be greatly improved; and furthermore, the reliability can be improved.
Owner:ADVANCED NEW TECH CO LTD
Method and device for automatically identifying abnormal seismic traces
ActiveCN104459779AAccurate identificationAccurate automatic identificationSeismic signal processingTruth valueSeismic trace
The embodiment of the invention provides a method and device for automatically identifying abnormal seismic traces. The method includes the steps that true values of seismic trace sampling points are obtained from collected single-explosion seismic records, and a maximum value threshold parameter value is set according to the true values of the seismic trace sampling points; absolute values of the true values of the seismic trace sampling points are obtained and compared with the maximum value threshold parameter value; when the absolute values of the true values of the seismic trace sampling points are larger than the maximum value threshold parameter value, the seismic traces where the sampling points are located are the maximum-value-type abnormal seismic traces. By means of the technical scheme, the accuracy for identifying the abnormal seismic traces can be greatly improved.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1
User-defined serializable data structure, hadoop cluster, server and application method thereof
ActiveCN105760534AEasy to useQuick to useSemi-structured data retrievalSpecial data processing applicationsError reductionData source
The invention discloses a user-defined serializable data structure, a hadoop cluster, a server and an application method thereof. The user-defined serializable data structure comprises a data content and tag value type, a flag value structure type and a data mapping relationship type; tag contents of a data source are arranged at the front end of data; data contents and the tag value type are used for analyzing data tag values and data contents; the tag value structure type is used for reading, recognition and writing of tag contents; the data mapping relationship type is used for storing and loading mapping relationships of data tag contents and different data sources, and mapping relationships of data tag contents and corresponding Protobuf compiled classes. The hadoop cluster comprises the user-defined serializable data structure, and the server comprises the hadoop cluster. The user-defined data structure has characteristics of both Protobuf and Writable, can be used for realizing a deserialization interface in Hive, and is more rapid and convenient to use in Hive compared with common text data, and thus errors can be reduced.
Owner:上海晶赞企业管理咨询有限公司
Model data description method for secondary equipment of substation simulation and training system
ActiveCN103366059AImprove realismFunction increaseSpecial data processing applicationsInformation technology support systemData descriptionData type
Owner:NARI TECH CO LTD
Data anonymization method and system
The invention provides a data anonymization method and system. The data anonymization method comprises the steps of: carrying out text analysis on the attribute value of a text type in data; replacing the attribute value of the text type in the data with the attribute value of a value type or a class type according to text analysis result; and carrying out anonymization processing on the data in which the attribute value of the text type is replaced by the attribute value of the value type or the class type. According to the invention, after anonymization processing, the data comprising the attribute value of the text type not only can prevent the privacy leakage based on the attribute value, but also still has use value.
Owner:NEC (CHINA) CO LTD
Method and device for establishing control system of internet of things
The invention provides a method and device for establishing a control system of the internet of things. The method for establishing the control system of the internet of things comprises the following steps of collecting data of the current state of equipment and sensors of the internet of things, establishing at least one ontology type and value type attributes of the ontology type according to the data of the current state of the equipment and the sensors of the internet of the things, establishing at least one ontology according to the ontology type and the value type attributes of the ontology type, obtaining at least one control rule, set by a user, of each ontology, and deploying at least one ontology and at least one control rule of each ontology to an inference machine. The method for establishing the control system of the internet of things solves the problem that procedures of other implementation portions are easily wrong when a control rule is modified and maintained in the prior art, and therefore the technical problem that a control system of the internet of things is difficult to update and maintain is solved.
Owner:PEKING UNIV
Method for serializing highly-efficient self-describing complex data objects
ActiveCN103778248AEasy to handleEasy to manageProgram controlSpecial data processing applicationsSerializationValue type
The invention discloses a method for serializing highly-efficient self-describing complex data objects. The method mainly solves the problems existing in the prior art that the object serialization processing capacities are limited, use and maintenance are inconvenient, and uniformity and conformity are deficient. The method comprises the following steps: creating a unique message ID for each heterogeneous message used for identifying the type of the heterogeneous message, creating zero or more than one parameter used for identifying the attribute values to be transferred by various heterogeneous messages, creating the unique ID, the value type and the value content stored in a binary format of each parameter, and achieving serialization and de-serialization using a binary mode according to the message IDs of the heterogeneous messages. By means of the solution, the method achieves the purpose of facilitating management and maintenance, reducing error logging, and improving the capability of processing data, and has a high practical value and a promotional value.
Owner:致云科技有限公司
Intrinsic function recognition method based on sub-graph isomorphism matching algorithm in decompilation
InactiveCN104915211ARealize automatic identificationEfficient identificationSpecific program execution arrangementsTheoretical computer scienceInline expansion
The invention discloses an intrinsic function recognition method based on a sub-graph isomorphism matching algorithm in decompilation, and belongs to the technical field of decompilation. According to the method, an intrinsic function template library is established, sub-graph isomorphism matching is conducted on intrinsic function templates and target assembling files generated through decompilation on the basis of a control flow diagram, and intrinsic functions which are subjected to compiler optimization and inline expansion in target programs of the target assembling files are positioned. According to the intrinsic function recognition method, inline intrinsic functions in the decomplation process can be recognized automatically, meanwhile, the templates and prototypes of the intrinsic functions are analyzed, the function names, returned values, returned value types and function parameters of the intrinsic functions are recovered, and thus the purpose of promoting the semantics of the inline intrinsic functions is achieved. More type information is provided for type analysis in decompilation through the promoted inline intrinsic functions, the complexity of data flow analysis and control flow analysis is lowered, the level of abstraction of intermediate codes is improved, and the readability of decompilation results is enhanced.
Owner:XI AN JIAOTONG UNIV
Unified data type system and method
InactiveUS8065668B2Efficient processingSoftware engineeringSpecific program execution arrangementsData typeValue type
A type system includes a dual representation for basic data types. One representation is the basic data type representation common to such basic built-in data types, known as an unboxed value type or simply as a value type. Each of the basic data types also has a boxed representation that can be stored in the object hierarchy of the type system. This dual representation can also be extended to user-defined types, so that user-defined types may exist both as an unboxed value type and as an object within the object hierarchy of the type system. This dual representation allows the compiler and / or runtime environment to select the most effective and efficient representation for the data type depending on the particular need at the moment.
Owner:MICROSOFT TECH LICENSING LLC
Relational and Key-Value type database spatial data index method
The invention relates to a relational and Key-Value type database spatial vector data index method. Spatial data form layers according to classifications, index layers and index grids are divided according to coordinate ranges of layer data, and each grid is given a unique two-dimensional array code and a one-dimensional code; each element of each layer is traversed, the coverage relation between each element and the corresponding index grid is calculated according to the graph of the element, and accordingly the index layer which the element belongs to and the grid covered with the element are obtained; the array code of the grid which the element belongs to serves as a spatial index code of the element and is stored in a layer index table of a relational database, and the one-dimensional codes of the grids serve as line keys of the layer index table in a Key-Value type database after composite design. The method unifies the index mode of spatial vector data in the relational database and the index mode of spatial vector data in the Key-Value type database, and a spatial index does not need to be built again when the spatial data migrate between the relational database and the Key-Value type database.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)
Changeable class and pattern to provide selective mutability in computer programming environments
InactiveUS7219340B2Increase flexibilityReduce the amount requiredProgramming languages/paradigmsSpecific program execution arrangementsBase classComputer programming
A changeable pattern and implementation is presented in which types (used in programming environments and virtual machines) may be mutable as controlled by a programmer, and share many of the benefits of value types, without the drawbacks of value types. The changeable pattern provides flexibility for restricting the modifiability of the resultant uses of the values, as well as providing a means for providing notifications upon changes. In one implementation, a single set of changeable types is provided that derive from a common Changeable base class, and any type for which mutability is desired may derive from the Changeable class. Properties associated with the changeable define state that determines cloning and / or changeability characteristics on subsequent uses of the type. True mutability is provided via a status property of next use being set to a changeable reference state such that subsequent uses of the type do not cause a state change.
Owner:MICROSOFT TECH LICENSING LLC
Cableless layering water injection method capable of achieving downhole flow, pressure and temperature monitoring
ActiveCN106050201AAccurate Layered Water Injection MethodAccurately control the amount of water injectedSurveyConstructionsAcoustic waveEngineering
The invention discloses a cableless layering water injection method capable of achieving downhole flow, pressure and temperature monitoring. The method comprises the steps that a sound wave launcher sends an injection allocation rate adjustment sound wave signal, and a sound wave water injection working barrel receives the injection allocation rate adjustment sound wave signal, judges a layer, analyzes data and adjusts a water nozzle to an injection allocation value; the sound wave launcher sends a flow, pressure and temperature monitoring sound wave signal, and coding is conducted, wherein code information comprises layer information, value types, value weights and value sizes; the sound wave water injection working barrel receives the sound wave signal and then conducts decoding, the value types and the value weights are determined, the sound wave launcher sequentially sends zero to nine, the sent number is compared with the value recorded by the downhole sound wave water injection working barrel, the two values are equal, the value types and numbers on the value weights are judged, the above-mentioned steps are conducted repeatedly till the hundreds digit, the tens digit and the single digit of the value types obtained through decoding are obtained, and transmission of the flow value, the pressure value and the temperature value of a downhole water injection layer to be monitored is completed. By means of the cableless layering water injection method capable of achieving downhole flow, pressure and temperature monitoring, ground and downhole two-way communication can be achieved.
Owner:CHINA NAT OFFSHORE OIL CORP +1
Initiative light source type crop canopy reflection spectral measurement device and method
InactiveCN103293113AOptical path parameters are adjustableChange geometryColor/spectral properties measurementsMeasurement deviceSpectral response
The invention provides an initiative light source type crop canopy reflection spectral measurement device and method and belongs to the field of geometrical optics and agricultural information nondestructive testing. A driving light source is a double-channel narrow-band LED (Light Emitting Diode) light source and adopts a special structure with adjustable light path parameters; the change of initiative light source irradiation characteristic parameters is realized according to measurement requirements so that spectral reflectance measurement of canopies with different scales can be met; a light path structure of a measurement system can guarantee that a constant value proportion relation can be kept when the height change is measured by a double-channel reflection spectral response value, so that measurement values of specific value type spectral indexes including NDVI (Normalized Difference Vegetation Index), RVI (Ratio Vegetation Index) and the like are theoretically not changed along with the measurement height.
Owner:NANJING AGRICULTURAL UNIVERSITY
Information search result generation method and system based on multi-attribute dynamic weight distribution
InactiveCN105976207AGood choiceAccurate recommendationNatural language data processingBuying/selling/leasing transactionsDirect evaluationInformation searching
The invention discloses an information search result generation method and system based on multi-attribute dynamic weight distribution. The method mainly comprises the following steps that customer evaluation within a specific time period is inquired, keywords are extracted, evaluation attributes are introduced according to the mentioning frequency, and value type static attributes of commodities are combined to construct multi-attribute sorting options; the different attributes are classified according to the relation between values of the attributes and the satisfaction degree of users, increasing and decreasing functions are used to represent effectiveness functions of two types of attributes respectively, and the effectiveness of each attribute is calculated; a direct evaluation difference-free method or an indirect measuring method is used to select preference of each attribute dynamically, and weight distribution of the attributes is obtained; according to the effectiveness of each attribute and the distribution weight, and a multi-attribute effectiveness function is used to calculate the effectiveness score of each commodity, and the commodities are ordered according to the effectiveness scores.
Owner:SHANDONG UNIV
Method and device for hooking function
ActiveCN106547580AEasy to controlReduce the amount of codeProgram loading/initiatingHookingValue type
The invention relates to a method and device for hooking a function. The method comprises the following steps: acquiring a to-be-hooked original function; judging a returned value type of the original function; configuring a corresponding substitution function containing a pre-callback function and a post-callback function according to the returned value type of the original function; and substituting the original function with the substitution function to realize the hooking of the original function. By use of the method and device disclosed by the invention, the returned value type of the original function is judged after the original function is acquired, the corresponding substitution function containing the pre-callback function and the post-callback function is configured according to the returned value type, and the original function is substituted by the substitution function to realize the hooking of the original function. One kind of returned value types are corresponding to the same substitution function by use of the returned value type to configure the substitution function, the corresponding between each function and one substitution function is unnecessary, the code quantity is reduced, and the space is saved. Whether the original function parameter and the returned need to be modified is judged through the pre-callback function and the post-callback function, and the control to the original function is realized.
Owner:TENCENT TECH (SHENZHEN) CO LTD
Cluster monitor and management method and system
InactiveCN104468274ALittle competitionRelieve pressureData switching networksHigh level techniquesData synchronizationRelational database
The invention belongs to the field of network cluster management, and provides a cluster monitor and management method and system. According to the method and system, key value type databases are created on a monitor node and all computing nodes respectively, and updating data of the computing nodes are synchronized to the monitor node through direct synchronization between the key value type databases. Due to the fact that the key value type databases are internal storage type non-relational databases, and have the high read-write speed and flexible data storage types, the time for achieving data synchronization through the databases is short, the competitive relation between the computing nodes is not large, the pressure of the monitor node can be effectively relieved, the network broadband utilization rate can be reduced, data zero redundancy, high availability and high expandability can be achieved, and in addition, a principle and method with grouping management easy are provided.
Owner:SHENZHEN UNIV
A rapid task planning method for a multi-source earth observation satellite
The invention provides a rapid task planning method for a multi-source earth observation satellite. The rapid task planning method comprises the following steps: performing calculating to obtain satellite ephemeris data; establishing an Index in a space-time two-dimensional mode, establishing a data structure, and storing ephemeris data in a KEY-VALUE type database; Performing discontinuous ephemeris data screening in the candidate range, performing satellite visibility calculation, and performing calculation to obtain a point target visible window; Processing the region target by adopting a greedy snake algorithm to obtain a region target visible window, and generating a meta-task window according to the region target visible window; And optimizing and arranging the meta-task window by adopting a pluggable task planning optimization and evaluation method to obtain a relatively optimal planning scheme. According to the invention, rapid access of data can be ensured, unified mode high-speed processing of common satellites and agile satellites is realized, and high-quality task planning is realized in a multi-satellite and multi-task combined planning scene.
Owner:SPACE STAR TECH CO LTD
Method for providing requested fields by get_Data operation in TV-Anytime metadata service
InactiveUS20060074848A1Waste of resourceUnnecessary resourceTelevision system detailsDigital data processing detailsPersonalizationTV-Anytime
The present invention relates to a method or an operation for providing a personalized TV-Anytime metadata service. According to an embodiment of the present invention, there is provided a method of providing a table field element using a get_Data operation in the TV-Anytime metadata service. In the table field element provision method, a requested fields type element (RequestedFieldsType) required to designate a field of a metadata table is included in a query result value type in the SOAP query operation. A request message of the SOAP query operation is received. When the request message includes the requested fields type element for designating the query result value, a query result value corresponding to a designated table field is extracted from the requested fields type element included in the request message, and the query result value is transmitted using a response message of the SOAP operation.
Owner:INTELLECTUAL DISCOVERY CO LTD
Mutually-coupled fractional-order chaos electromechanical transducer acceleration adaptive fuzzy control method
ActiveCN110501906AImprove featuresIncreased Design FreedomAdaptive controlDifferentiatorFeedback controller
The invention discloses a mutually-coupled fractional-order chaos electromechanical transducer acceleration adaptive fuzzy control method. The method comprises the following steps: a) creating a smallnetwork formed by three same electromechanical transducers, wherein each electromechanical transducer has a nearest neighbor coupling structure, and building an electromechanical coupled transducer model with a nearest neighbor based on the small network; and b) designing a controller composed of a feedforward fuzzy controller and an adaptive optimal feedback controller, wherein the feedforward fuzzy controller is integrated by a regression non-single-valued type-2 sequence fuzzy neural network, a velocity function and a tracking differentiator in an inversion control framework, and the adaptive optimal feedback controller is formed by the regression non-single-valued type-2 sequence fuzzy neural network, policy iteration and an execution-evaluation reinforcement learning algorithm, and can solve a Hamilton-Jacobi-Bellman equation. The method not only guarantees boundedness of all signals, realizes chaos suppression and synchronous and accelerated convergence, but also minimizes a cost function.
Owner:GUIZHOU UNIV
Phase voltage difference value type SVPWM control method for asynchronous motor
InactiveCN101515782AHigh precisionAvoid complex calculationsElectronic commutation motor controlAC motor controlVoltage vectorControl system
The invention discloses a phase voltage difference value type SVPWM control method for asynchronous motor, comprising: in each PWM control period, the basic voltage space vector function time is directly calculated by using the phase voltage difference value of the three-phase sine reference voltage with the phase difference of 120 DEG generated by the control system, the sector position placed by the round rotating reference voltage vector v[ref] is judged according to the three reference phase voltage sequence relation arranged from the big to the small, the coordinate torque transfer, the trigonometric function operation and the vector resolving derivation of the reference voltage vector to the sector in the traditional method are eliminated, all the intermediate process is simplified, and only the size sequence of the three phase voltages is judged and the difference value is calculated, the step is clear, the model is simple, the calculating efficiency is high, the real-time is strong, the method is suitable for the high accuracy control and has theory innovation and practical value.
Owner:ZHEJIANG SCI-TECH UNIV
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