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47 results about "Redundancy problem" patented technology
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Redundancy problem. In international finance, the redundancy problem, also known as the n − 1 problem, is a problem of inequality of the number of policy instruments and the number of targets at the international level, suggested by Robert Mundell in Robert Mundell (1969).
Upstream channel multicast media access control (MAC) address method for data-over-cable systems
A head-end in a data-over-cable system transmits a multicast message in a downstream channel to all the cable modems in a particular MAC layer. The message includes an address field that contains an upstream channel multicast MAC address that identifies a particular channel, and is used to send a multicast message for which only cable modems transmitting in the upstream direction in that channel are to respond. When the message is received by the cable modems, the cable modems compare the upstream channel multicast MAC address with addresses stored in a memory. If a match is found, indicating that the cable modem happens to transmit in the upstream direction in the particular channel, it processes the message. If no match is found, the message is discarded. The upstream channel multicast MAC address helps noise avoidance or redundancy problems associated with a particular channel to be quickly remedied, and avoids the head-end from having to send out a large number of unicast messages in order to communicate with all the modems sharing a given upstream channel.
Owner:HEWLETT-PACKARD ENTERPRISE DEV LP
A satellite anomaly detection method of an adversarial network autoencoder
ActiveCN109948117AAnomaly detection decreasedImprove accuracyRadio transmissionNeural architecturesShort-term memoryOriginal data
The invention discloses an abnormity detection method for satellite telemetry data through an adversarial network autoencoder, and the method comprises the steps: breaking the limitation of a traditional empirical model, and employing a pure data driving model; on the basis of a variational autoencoder, introducing a confrontation network idea, using a bidirectional LSTM (Long Short Term Memory) (Long-short term memory network) as a discriminator, and judging whether satellite telemetry data is abnormal or not by using errors of reconstructed data and original data; aiming at the redundancy problem of a satellite sensor, the conventional situation is broken through, and a Markov distance is used for measuring a reconstruction error. In combination with periodicity of satellite orbit operation, a dynamic threshold determination method based on a periodic time window is provided. The method has the advantages that pure data driving is adopted, expert experience is not needed, and the method can be suitable for various occasions; By combining the respective advantages of the variational auto-encoder and the generative adversarial network, the proposed network has the characteristics of high training speed and relatively easy convergence; eliminating redundant data influence between satellite telemetry data by adopting a Mahalanobis distance. According to the periodicity of the satellite, the dynamic threshold method based on the periodic time window is provided, and the misjudgment rate is reduced.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Information centric networking caching method based on content popularity prediction
ActiveCN106453495AReduce computational overheadReduce cache redundancy issuesData processing applicationsCharacter and pattern recognitionCache accessPrediction algorithms
The invention provides an information centric networking caching method based on content popularity prediction, relates to the technical field of communication network data processing, solves a caching redundancy problem in the prior art of information centric networking caching, and improves the sharing efficiency of cached contents. In the method, each node records the content names of all request contents received by each node, and similarities among all contents are calculated and are clustered; the content popularity value of each class of contents which pass through the node is calculated and is subjected to periodic statistics; and a prediction algorithm is used for predicting the content popularity value of each class of contents of a future moment of the node, and the content popularity value is added into the data packet of a hit node; and in a data packet returning process, a content popularity prediction value carried by the data packet is compared with a local content popularity prediction value to determine whether the contents are added into a node cache or not. The method is used for optimizing the cache access of content-based information centric networking.
Owner:BEIJING UNIV OF POSTS & TELECOMM +1
Network file system and method based on certificate-free public key infrastructure
InactiveCN102420810ANo hosting issuesEliminate redundancyUser identity/authority verificationNetwork File SystemClient-side
The invention provides a network file system and method based on a certificate-free public key infrastructure. All client side nodes are registered in a key generating centre server, and node public keys and node private keys of the client side nodes are generated according to system public keys and partial private keys in system parameters generated by the key generating centre server; no key hosting problem exists, the node public keys and identities of the client side nodes are not needed to be bound by certificates, thus the certificate redundancy problem brought by certificate utilization is eliminated, and a secure channel is not needed to be built between the key generating centre server and each client side node; the identity authentication of two communicating client side nodes is directly finished according to the node public keys, the node private keys and the system parameters, and the key generating centre server is not needed anymore; the communication frequency for mutual authentication of the client side nodes is greatly reduced, the bandwidth resources used in the identity authentication process are lowered, and the calculation amount is reduced and higher efficiency is obtained.
Owner:SHANGHAI SHENGPAY E PAYMENT SERVICE CO LTD
A method for automatic semantic segmentation of mine area in remote sensing image
ActiveCN109145730AResolve Feature RedundancyImprove work efficiencyScene recognitionLabeled dataLearning network
The invention discloses a mining area automatic semantic segmentation method in remote sensing image in the technical field of automatic target detection and depth learning, characterized in that: thespecific steps are as follows: 1, establishing a training sample set: acquisition of Remote Sensing Images of Mining Areas, and artificial delineating the boundaries of the mining area, forming a Boundary Grid File, 448*448 being generated by ArcGIS, 512*512 fishing nets of two scales, the remote sensing image of the mining area being cut in batches by using the two generated fishing nets to generate image blocks of different sizes as input data of the depth learning network, and the boundary files of the mining area grid in the image being cut through the fishing nets to generate boundary files corresponding to each mining area image block as label data of the network. The invention adopts a hybrid network Den-Res Net can abstract the extracted features while preserving the integrity offeatures, which can be used to solve the redundancy problem of Dense Net network, and the method has high efficiency, automatic semantic segregation and high accuracy.
Owner:合肥深蓝空间智能科技有限公司
Low latency Ethernet repeater and low latency Ethernet forwarding method based on T structure
ActiveCN105933162AReduces cabling redundancy issuesGuaranteed certaintyBroadband local area networksTime delaysNetwork link
The invention provides a low latency Ethernet repeater and a low latency Ethernet forwarding method based on a T structure, which are used for solving the wiring redundancy problem in the existing switch and the problems that the time delay is larger and the time delay is uncertain in the existing forwarding method. The repeater comprises a port in T-type distribution and a processing unit; the processing unit comprises a left port frame processing module, a right port frame processing module, a user port frame processing module, an address learning and search module, a special protocol processing module and a user port adapter module. A forwarding method comprises the following steps: judging a link state; caching a data frame; identifying and classifying frames; reconstructing a link; classifying PAUSE frames; configuring the repeater; learning and searching an address; building an output queue; building the PAUSE frames; and outputting the PAUSE frames to the port. The low latency Ethernet repeater and the low latency Ethernet forwarding method based on the T structure provided by the invention can fully reduce the user access wiring redundancy, reduce the forwarding delay and guarantee the forwarding delay certainty, and can detect and reconstruct a network link timely during a network link failure, so that the low latency Ethernet repeater and the low latency Ethernet forwarding method can be used for building a high speed real-time access network.
Owner:XIDIAN UNIV
Method for processing two-category unbalance medical data
InactiveCN108509982AEfficient Random OversamplingImprove classification accuracyCharacter and pattern recognitionPatient healthcareOriginal dataData source
The present invention relates to a method for processing two-category unbalance medical data, belonging to the technical field of data classification. The method comprises the steps of: performing preprocessing of data, preliminarily deleting irrelevant and repeated data in an original data set, smoothing noise data, and processing an abnormal value and a missing value; performing integration of data of different data sources, solving the entity identification and attribute redundancy problem, and performing normalizing processing of the data; and employing a ROSE method to perform unbalance processing of the data. On the basis of data preprocessing, the ROSE and Boruta algorithms are employed to improve the classification precision of the unbalance medical data and solve the problem thatthe classification correction rate of few categories of samples of medical unbalance data is low.
Owner:KUNMING UNIV OF SCI & TECH
Shared parallel data reading-writing apparatus of multi memories among multi controllers, and reading-writing method of the same
ActiveCN106569727AReduce hardware areaSatisfy the computing performanceInput/output to record carriersHigh bandwidthData operations
Owner:FUZHOU ROCKCHIP SEMICON
Method for storing files, first virtual machine and name node
ActiveCN106446159AImprove usabilitySolve the waste of resourcesFile access structuresSpecial data processing applicationsDistributed File SystemClient-side
A method for storing files, a first virtual machine and a name node are used for solving the redundancy problem of file numbers, existing when a distributed file system stores the files, and improving availability of the distributed file system. The method for storing the files includes that a client side sends a request message of requesting writing data to be written in the distributed file system to the name node; the name node sends a response message corresponding to the request message to the client side, wherein the response message includes an address of the first virtual machine and an address of a second virtual machine, and indicates the first virtual machine to be a virtual machine in more than one virtual machine, which has permission of writing data in a storage region, and the second virtual machine to be the other virtual machine besides the first virtual machine in the more than one virtual machine; the client side sends the data to be written and the address of the second virtual machine to the first virtual machine; the first virtual machine writes the data to be written into the storage region shared by the more than one virtual machine, and generates or updates metadata of the data to be written; the first virtual machine sends the generated or updated metadata to the second virtual machine.
Owner:HUAWEI CLOUD COMPUTING TECH CO LTD
Indexing structure of XML (Extensive Markup Language) document
InactiveCN101833588ASolve redundancyReduce processingSpecial data processing applicationsRelationship - FatherData retrieval
The invention discloses a new indexing structure of an XML (Extensive Markup Language) document, belonging to the field of data retrieval. For nodes in the XML document, LAF (Layer order And Father numbering) coding is defined into three parts: a hierarchy traversal number of the nodes, a hierarchy traversal number of father nodes of the nodes and depths at which the nodes locate. The invention further provides a two-stage indexing structure based on the LAF coding; in the indexing structure, the plain text attribute of the XML document is stored in a primary index, and the semi-structure attribute of the XML document is stored in a secondary index, and the primary index and the secondary index are associated together through a pointer. The invention provides the two-stage indexing technology, which can not only avoid the redundancy problem possibly brought by the traditional indexing method, but also support a more-efficient retrieval algorithm and reduce the treatment frequency to invalid elements by the retrieval algorithm.
Owner:PEKING UNIV
Video networking system based on multicast technologies and state monitoring method
ActiveCN105072386AAvoid redundancyPolling capacity no longer scalesClosed circuit television systemsTransmissionVideo monitoringMonitoring system
The invention discloses a video networking system based on multicast technologies and a state monitoring method. The invention provides a distributed video monitoring system composed of systems, equipment and applications networked in a super large scale. Problems of real-time state monitoring and massive index data collection are solved. Each host of the video networking monitoring system is designed into an active participant for state information acquisition instead of a passive provider for providing monitoring information within its responsibility scope. Hosts in the system coordinate with one another so that work is organically distributed and influences of serialization and single-point faults are prevented. State data are reused and distributed in the network formed by the hosts. Therefore, phenomena that a certain host node bears too many loads and cannot work normally can be prevented. The coordination mode is characterized in that the polling capabilities are enhanced every time new host nodes are added. The monitoring capabilities will not be enhanced any more only when the network formed by the hosts stops increasing. Meanwhile, polling is separated from data storage and data presenting. Possible redundancy problems between data storage and data presenting in certain conditions can be solved.
Owner:ZHEJIANG LIYUAN COMM TECH
Energy consciousness and multi-dimensional parameter perception service quality assurance routing method
ActiveCN109818866AIncrease loadImprove efficiencyNetwork topologiesData switching networksNetwork serviceMulti dimensional
The invention provides an energy consciousness and multi-dimensional parameter perception service quality assurance routing method. The method comprises the following steps: firstly, defining two working modes, namely an energy saturation mode and an energy loss mode, establishing an energy cost model, and modifying a data packet format field of a HELLO message, so as to influence flooding frequency, namely HELLO message flooding period time, and achieve the purpose of saving energy; secondly, an MPR node redundancy problem in the network is also subjected to algorithm optimization processing,so that the load of the whole network and the energy use efficiency of the network are improved, and the network performance is further improved; and finally, a routing path selection strategy is improved on the basis of a standard OLSR protocol, and the routing path selection strategy is optimized according to the standard OLSR protocol. Three service quality constraint conditions of link residual bandwidth, link end time delay and node connection time are added, and a single Dijkstra algorithm path selection rule is improved on path selection, so that the reliability of network service quality is comprehensively guaranteed.
Owner:WUHAN UNIV
Artificial neural musculoskeletal robot upper limb model simplification method
The invention relates to the field of artificial neural musculoskeletal robots, discloses an artificial neural musculoskeletal robot upper limb model simplification method, and aims at solving the redundancy problem of artificial neural robot models. The method comprises the following steps of: calculating an average muscle force size of related muscles and a first motion track of an artificial neural musculoskeletal robot upper limb model when the artificial neural musculoskeletal robot upper limb model executes a specific basic motion mode; selecting simplified muscle sets of the motion track according to the average muscle force size; calculating a second motion track when the basic motion is executed by utilizing the simplified muscle sets; determining a motion precision index according to the first motion track and the second motion track; determining a simplified muscle set satisfying appointed motion precision as a most simple muscle set of the motion mode; and combining all thesimplified muscle sets required by the basic motion mode so as to obtain a most simple muscle set, satisfying the appointed motion precision, of the artificial neural musculoskeletal robot upper limbmodel. According to the method, artificial neural musculoskeletal robot upper limb models can be simplified.
Owner:INST OF AUTOMATION CHINESE ACAD OF SCI
Method and device for testing
ActiveCN107015902AImprove test efficiencyAvoid the problem of redundant test casesSoftware testing/debuggingTest efficiencyIntegration testing
The invention discloses a method and a device for testing. The method comprises: receiving a test request sent by a first to-be-tested station, the test request including identification information of the first to-be-tested station; according to the identification information of the first to-be-tested station, respectively determining a first configuration file and a test suite required by testing the first to-be-tested station, the test suite including a common test case suite used to support for testing a plurality of test stations, and a private test case suite used to support the first to-be-tested station; loading the first configuration file, and based on the common test case suite and the private test case suite, starting an integrated test on the first to-be-tested station. Thus, the test suite required by each station does not need to be maintained independently, the common test case suite used by a plurality of stations and the private test case suite independently used by each station are maintained, so as to effectively prevent a redundancy problem of test cases in a system, and effectively improve test efficiency of stations.
Owner:ADVANCED NEW TECH CO LTD
Microblog popularity prediction method based on active learning
ActiveCN109492776ASolve the problem of hotspot lagFully consider real-time impactComputing modelsFeature vectorStable state
The invention provides a microblog popularity prediction method based on active learning. The method comprises the following steps: crawling a related microblog data set by utilizing a Sina microblogAPI; utilizing a k-Means algorithm initializes the unmarked data set into a training set L; performing feature extraction on the training data to obtain a feature vector; training an improved model based on active learning of a support vector machine according to the extracted feature vectors, and selecting samples with uncertainty, diversity and representativeness from an unmarked sample set according to the trained multi-classification model; calling the screened samples as information vectors, and marking the information vectors to experts; and adding the marked training data into the initial training set L, and circulating the process until the performance of the model reaches a stable state to obtain the microblog popularity prediction model. According to the method, the redundancy problem is reduced, the abnormal value problem is reduced, the number of marks of training samples is reduced, and meanwhile a good prediction effect is obtained under the condition that training data is few.
Owner:HARBIN ENG UNIV
Fuzzy test case generation method based on machine learning method
ActiveCN110443045AImprove effectivenessReduce redundancyPlatform integrity maintainanceTest flowAlgorithm
The invention relates to a fuzzy test case generation method based on a machine learning method, and relates to the field of information security. According to the method, the test case redundancy problem existing in the current fuzzy test technology is optimally designed. In the aspect of generating the fuzzy test case oriented to the source program file, before the fuzzy test case is generated,the stain variable and the problem function in the program object are marked and identified, and the existing seed case generation and screening technology is combined, so that the effectiveness of the fuzzy test case can be improved, and the redundancy of a fuzzy test case set is reduced. In the test case generation link, combining machine learning, the feasibility of machine learning for test case simplification is analyzed, to obtain a test case of machine learning and generate an optimization technique idea. According to the method, a machine learning model and an algorithm are adopted toimprove a test case generation link in a fuzzy test process, improve the generation efficiency of the test case, realize redundancy removal of test case combination and achieve the purpose of improving the intelligent degree of the fuzzy test process.
Owner:BEIJING INST OF COMP TECH & APPL
Information center network oriented cache placement decision scoring system based on fluid dynamic theory
ActiveCN106131202AImprove hit rateSolve redundancyDesign optimisation/simulationTransmissionNODALLiquid temperature
The invention discloses an information center network oriented cache placement decision scoring system based on a fluid dynamic theory. A service request rate of a node passed by each request is dynamically calculated according to requests sent by a user until a node is hit. Finer-grained evaluation is carried out on the importance of a current node to request contents by employing the service request rates. Moreover, a cache decision process is mapped by employing the fluid dynamic theory. Whether to store cache in a container is decided according to the liquid temperature in the container. The method has the advantages that the hit rate of the information center network oriented cache is effectively improved; the good result also can be obtained when cache resources are limited; the redundancy problem of an information center network can be effectively solved; the backup number of the same contents of the network can be greatly reduced; and the network cache resources can be utilized fully.
Owner:CENT SOUTH UNIV
Low-voltage transformer area user topology identification method based on t-SNE dimension reduction technology and BIRCH clustering
InactiveCN110569316AEasy to use in real timeImprove troubleshooting efficiencyRelational databasesMulti-dimensional databasesTopology identificationFeature Dimension
The invention discloses a low-voltage transformer area user topology identification method based on a t-SNE dimension reduction technology and BIRCH clustering. Topological information of a low-voltage transformer area has important guiding significance for transformer-user relationship error correction and line loss governance analysis, however, current error correction of topological archives mainly depends on on-site troubleshooting of electrical employees, manpower and material resource consumption is large, and troubleshooting efficiency is low. In the background, the invention provides atopology identification method based on voltage measurement data of an intelligent electric meter. The method comprises the following steps: firstly, performing dimension reduction processing on original load data by adopting a t-SNE technology, and solving the redundancy problem caused by too high original load feature dimension of a transformer area user; and then, identifying the phase to which the single-phase user belongs and the secondary access meter box in the transformer area by using a BIRCH method. The result of example analysis shows that the method provided by the invention has ahigher recognition rate for the topology of the transformer area, and can provide reference for the topology recognition and troubleshooting of the low-voltage transformer area.
Owner:ZHEJIANG UNIV
Semi-supervised classification prediction method
ActiveCN109933619AImprove accuracyReduce imbalanceWeb data indexingCharacter and pattern recognitionDiseaseAlgorithm
The invention discloses a method for eliminating category region redundancy based on a semi-supervised algorithm, and belongs to the field of data mining. The method is aimed at a classification prediction task, redundancy of a classification local area is reduced to optimize a target, and the risk of overfitting is reduced, so that a model with high overall discrimination capability is obtained.The implementation idea of the method is divided into two processes: firstly, starting from each category, finding the center of each category, and then selecting a local area around the center; secondly, considering the redundancy of a local area, and reducing the redundancy of the data by using a random sampling method. The method can be used for sample redundancy problems of various classifications such as disease diagnosis, text classification, face recognition and speech recognition, and the classification accuracy can be remarkably improved.
Owner:SOUTHWEST JIAOTONG UNIV
Unified electric energy quality controller
ActiveCN103236693AImprove sag compensation capabilityTake advantage ofAc network circuit arrangementsEngineeringThree-phase
The invention provides a unified electric energy quality controller. The unified electric energy quality controller comprises a serial unit and a parallel unit, wherein the serial unit comprises two serial converters and three transformers; the parallel unit comprises a parallel converter; three single-phase output ends of alternating-current sides of the two serial converters are respectively connected to terminals of the three transformers; same-phase output ends of the two serial converters are connected with the same transformer; obtained voltage is coupled through the three transformers and then is serially connected into each single-phase feeder line of a three-phase feeder line; direct-current sides of the two serial converters are respectively connected to a direct-current side of the parallel converter; and three single-phase output ends of an alternating-current side of the parallel converter are respectively connected to each single-phase feeder line of the three-phase feeder line. According to the unified electric energy quality controller disclosed by the invention, a module redundancy problem is effectively solved, and a voltage sag compensation capability and the working stability are higher.
Owner:ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
Lower fan blade icing prediction method based on unbalanced data set condition
ActiveCN109978039AIncrease randomnessAvoid Overlapping Redundancy ProblemsCharacter and pattern recognitionData setAlgorithm
The invention discloses a lower fan blade icing prediction method based on an unbalanced data set condition, and the method enables the distribution of data samples in an unbalanced data set to be balanced, and predicts a fan blade icing event in combination with a random forest algorithm (RF). The algorithm comprises the following steps: firstly, carrying out BIRCH hierarchical clustering operation on a small number of original samples, and dividing different concentration regions in each clustering region according to the density of sample points; the lower the concentration is, the more thesamples to be synthesized are, and the fewer the samples to be synthesized are in the higher the concentration is. In order to follow the original distribution situation of a few types of samples, new samples are synthesized in different concentration areas in each cluster. Also, a BIRCH-SMOTE algorithm improves linear interpolation operation, randomness is increased in the interpolation process,and the overlapping redundancy problem of synthetic samples is effectively avoided. Finally, the random forest model is trained by using the balanced data set, and a fan blade icing prediction resultis obtained.
Owner:NANJING UNIV OF POSTS & TELECOMM
Data processing method and related device
ActiveCN109857579AAvoid Duplicate QuestionsSolve redundancyInterprogram communicationData needsState management
The invention discloses a data processing method and a related device. When the target data needs to be requested, target data is requested by using a request method; the target data is used as the central data to be stored in the state manager, a callback function does not need to be written corresponding to a request of the target data, so that the callback function does not need to be executedimmediately after the target data is obtained, the central data is monitored by using a monitoring method, and a processing function of the target data is executed only when the central data is monitored to be changed. Because the request method and the processing function do not need to be written in the service logic at the same time, only one processing function is provided even if the same data needs to be requested for many times, and the problem of repeated writing of the processing function in the whole code is avoided. And for the same data, the corresponding processing function needsto be executed only when the change of the data is monitored, and the same processing function of the same data does not need to be repeatedly executed, so that the redundancy problem of the processing function in writing and implementation is effectively solved.
Owner:深圳市迅雷网文化有限公司
Networked radiation environment monitoring system
InactiveCN106324647AAchieve accuracySolve redundancyData processing applicationsX/gamma/cosmic radiation measurmentData informationOutput device
The present invention discloses a networked radiation environment monitoring system. A radiation environment monitoring device and a power supply system are connected with a data processing host through a real-time signal transmission system. An alarm indication module is an alarm signal output device and is connected with the data processing host. According to the technical scheme of the invention, the on-line, real-time, automatic monitoring and alarming advantages are realized. By means of the system, the screening of an oracle database is realized efficiently based on the data redundancy method. Through checking data and verifying existing data, necessary data are queried and verified, so that the accuracy and the uniqueness of supplied data are realized. Meanwhile, the data redundant condition is avoided. The system has the redundant data recording function, so that the integrity and the accuracy of the equipment supply manufacturer information in an electric energy replacement module are improved. The redundancy problem of the data information is effectively solved. Moreover, the system improves the working efficiency of the subsequent operation.
Owner:EAST CHINA UNIV OF TECH
Industrial level control cabinet and system safety control method thereof
ActiveCN109164728ASimple structureClear functionProgramme controlComputer controlMicrocontrollerMicrocomputer
The invention discloses an industrial level control cabinet. The industrial level control cabinet comprises a master control system, an auxiliary monitoring system and a mechanical switching device. Asuperior controller is connected with the master control system and the auxiliary monitoring system, the master control system and the auxiliary monitoring system both are connected to the mechanicalswitching device, and the mechanical switching device is connected to various equipment. The master control system is embedded with the ARM, and a singlechip microcomputer is arranged in the auxiliary monitoring system. The invention also discloses a system safety control method of the industrial level control cabinet. By design of the invention, the auxiliary monitoring system with the built-insinglechip microcomputer is simple in structure in comparison with the master control system with the built-in ARM, thus, a system redundancy problem is avoided, and meanwhile, by an emergency mode ofmechanical switching, reliability and stability of the system are guaranteed.
Owner:JIANGSU TEKENENNA ENERGY SAVING TECH
A method for controlling and distributing the transitional flight mode of a composite rotor aircraft
PendingCN109002575AReduce energy consumptionImprove efficiencyGeometric CADArtificial lifeMode controlParticle swarm algorithm
The invention discloses a method for controlling and distributing the transitional flight mode of a composite rotor aircraft, belonging to the control technical field of the composite rotor aircraft.This method is used to study the control plane control characteristics of a composite rotor aircraft when the helicopter mode and the fixed wing mode are converted to each other, presents a method ofredundancy assignment based on weighted hybrid multi-objective and a new method of redundancy assignment, an improved particle swarm optimization algorithm with high computational accuracy, reduces the design difficulty of the control algorithm, and effectively solves the problems of the control surface constraints, cross-coupling and non-linearity of the composite rotor aircraft. The control redundancy problem of the transition process between the helicopter mode and the fixed wing mode is solved, and the control surface control efficiency and flight stability are improved. The composite rotor aircraft using the method of the invention can adopt the same flight controller to realize full-mode flight, does not need to switch the controller in the transition mode, reduces the design difficulty of the system controller, and improves the safety of the transition mode switching.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Remote sensing image classification algorithm based on mRMR selection and improved FCM clustering
InactiveCN109993204AAccurate divisionImprove operational efficiencyCharacter and pattern recognitionImage segmentationGeographic object
The invention discloses a remote sensing image classification algorithm based on mRMR selection and improved FCM clustering. The method comprises the following steps: S1, constructing a new object confidence coefficient (OC) index to measure an object-oriented multi-scale segmentation algorithm of a matching degree between any region and a geographic object, segmenting an image to generate image spots, and improving over-segmentation and under-segmentation problems in an image segmentation process; S2, introducing an mRMR feature selection algorithm, utilizing mutual information to measure thecorrelation and redundancy of different features, and searching a feature subset according to the information difference and the information entropy, so that the minimum redundancy exists between theselected feature and the target category, and the feature redundancy problem is solved; S3, performing feature distance calculation by adopting an improved FCM classification algorithm of significantfeature difference fusion to realize image classification; and S4, evaluating a pattern spot classification result of the remote sensing image. The images are classified, so that accurate classification of ground object categories is realized. According to the invention, the overall precision of classification reaches 94%.
Owner:CHONGQING UNIV OF POSTS & TELECOMM
Set-top box and phone integrated machine
InactiveCN102724372ARealize the function of making a phone callTelephonic communicationSelective content distributionKey pressingComputer module
The invention discloses a special digital phone and ordinary phone integrated machine for a set-top box, and the integrated machine combines a special digital phone and an ordinary phone into a whole, is of a simple structure and can be used for greatly reducing the production cost and the usage power consumption, and simultaneously solving the redundancy problem of phone devices in a home of a user. The technical scheme is as follows: the integrated machine comprises a voice expansion interface of the set-top box, an RJ11 telephone interface, an interface processing module of the set-top box, a PSTN (public switched telephone network) signal processor, an audio input module, a key input device and a central control and processing module, wherein the interface processing module of the set-top box is connected with the voice expansion interface of the set-top box and used for processing communication signals of a locking module in the set-top box; the PSTN signal processor is connected with the RJ11 interface and used for processing signals of a public switched telephone network of a telephone line RJ11; and the central control and processing module is used for realizing the communication with the locking module of the set-top box and the PSTN communication with a telephone, performing function switching between an interface processing chip of the set-top box and a PSTN signal processing chip and producing a control command based on a received key input signal.
Owner:上海泓安信息科技有限公司
Memory access instruction instrumentation optimization method in multi-thread application scene
ActiveCN110187884ADoes not affect accuracyReduce overheadCode compilationBasic blockIntermediate code
The invention discloses a memory access instruction instrumentation optimization method in a multi-thread application scene, redundant instrumentation of a memory access instruction involving a non-shared memory is removed through a static analysis process based on a program intermediate code, and the method specifically comprises the following steps: 1, obtaining the intermediate code; 2, traversing all modules, functions, basic blocks and instructions; 3, acquiring instruction related information, and updating and recording distinguishing information of redundant / non-redundant instrumentation according to corresponding rules; and 4, selectively instrumenting the memory access instruction according to the recorded distinguishing information. According to the method, the problem of instrumentation redundancy in a traditional memory access instruction instrumentation method can be solved, and the purposes of reducing the memory access instruction instrumentation scale and the operationoverhead introduced by instrumentation are achieved.
Owner:UNIV OF SCI & TECH OF CHINA
Single-disk storage system with RAID function and electronic device
The invention discloses a single-disk storage system with an RAID function and an electronic device. The single-disk storage system comprises an RAID controller and solid-state disk storage particles, wherein the RAID controller is connected with the solid-state disk storage particles in a coupled manner and communicates with an upper computer through a data interface. According to the system and the electronic device, an RAID technology is fused in a single-disk storage structure, so that the data security level reaches the level of the single-disk storage structure, and the redundancy problem of the single-disk storage structure is solved.
Owner:LENOVO (BEIJING) CO LTD
License central control method and device
InactiveCN106682483ASolve redundancyImprove maintenance efficiencyDigital data authenticationLicenseComputer engineering
The invention discloses a license central control method and device and relates to the technical field of data processing. Instead of the total quantity of licenses being decomposed to OMCs (operation maintenance centers) in cities, license files are generated for slave OMCs according to under-usage licenses of the slave OMCs when the sum of under-usage licenses of the slave OMCs is not higher than the total number of licenses; therefore, the quantity of licenses is determined by the slave OMCs according to practical condition, and the license redundancy problem is avoided; the licenses are not generated by the slave OMCs any more but centrally generated by a host OMC, communicating with manufacturers to change the licenses of the slave OMCs is not required, and maintenance efficiency is improved accordingly.
Owner:DATANG MOBILE COMM EQUIP CO LTD
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