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31results about How to "Reduce the number of selections" patented technology

Farmland wireless self-organizing network topology density correlation path selecting and optimizing method

The invention relates to a farmland wireless self-organizing network topology density correlation path selecting and optimizing method. The method includes the steps that firstly, node energy is calculated, voting is carried out, and cluster heads are determined; secondly, nodes within a preset threshold value are received by the cluster heads and added, and clustering operation is carried out; thirdly, nodes corresponding to which clustering operation is not completed become intra-cluster sub-nodes according to a pre-established method; fourthly, energy advantage nodes are selected from the intra-cluster sub-nodes to serve as fake cluster heads; fifthly, reverse scattering and networking are carried out according to the cluster heads and the fake cluster heads; sixthly, environment information collecting and reporting are carried out on all nodes through a networking route; seventhly, whether a cluster head arrives at an energy approximating target or not is judged; eighthly, if a cluster head arrives at the energy approximating target, the next round is marked to carry out cluster head election, collection of the current round ends, and otherwise collection of the round ends. By means of the method, clustering efficiency is improved, cluster head selection frequency is lowered, and overall network energy efficiency is improved.
Owner:北京市农林科学院信息技术研究中心

Virtual keyboard design scheme for inputting Chinese characters by brain waves

The invention relates to a virtual keyboard design scheme for inputting Chinese characters by brain waves. In the scheme, a virtual keyboard consisting of 42 buttons (six rows * seven columns) is constructed on a computer screen; the upper half part of each key of the keyboard is marked with a character representing a name of the key; the lower half part of each key is provided with a small window with a pixel of 30*30, which is used for carrying out visual stimulation; first to fourth rows of buttons are marked with initial consonants and vowels in a binary syllabification input method; first five number keys in a fifth row represent positions of candidate Chinese characters; the back and forth page turning of candidate characters / words is realized by key names of '->' and '-<'; and a sixth row of buttons has the main function of realizing selection of the first to fifth rows of buttons. In the using process of a user, the selection of each binary syllabification character needs to be completed by two steps, i.e. a first step of selecting a certain button on the sixth row so as to select the row in which the binary syllabification character is positioned and a second step of selecting the binary syllabification character in the selected row and repeating.
Owner:SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES

Detection method and system for MIMO system

A detection method for an MIMO (Multiple-Input Multiple-Output) system comprises the steps of: generating a processed receiving signal based on a receiving signal and a receiving channel matrix, and determining a first-stage node based on the processed receiving signal; executing the following process repeatedly until a stage number i reaches the number of trasmitting antennas, wherein the i is apositive integer greater than 1: obtaining a reliability ordering of at least two i-stage nodes based on an i-1-stage node; calculating a measuring value of each surviving route corresponding to the each i-stage node based on the reliability ordering of the at least two i-stage nodes; repeatedly executing the step of selecting a set of the i-stage nodes in order from small to large according to the measuring value of the each surviving route until number of the selected i-stage nodes is equal to the number of the surviving route of the i-stage; and outputting the surviving route and the measuring value which are respectively corresponding to the selected i-stage nodes and used for coding a sending signal. A detection system comprises a first processing module and a second processing model.
Owner:HONOR DEVICE CO LTD

Method and device for prompting video content

The invention provides a method and device for prompting video content. The method and device are applied to first electronic equipment which can simultaneously receive multiple pieces of video content and play the video content in real time. The method comprises the steps of receiving the type selection request of a user, determining the type of a target video selected by the user according to the type selection request, acquiring the target video matched with the target video type, outputting the video content prompting information of the target video and displaying the information, and meanwhile displaying the video content prompting information corresponding to multiple target videos respectively when the number of the required target videos is multiple. According to the method and device for prompting the video content, the times for selecting the videos are reduced, and the efficiency for selecting the videos is improved.
Owner:LENOVO (BEIJING) CO LTD

Electronic communication equipment and external keyboard for same

The invention discloses electronic communication equipment and an external keyboard for same. The external keyboard comprises a keyboard body connected to the electronic communication equipment in a mode of pivotal connection or a USB interface, 23 initial consonant input keys arranged on the keyboard body, 33 final sound input keys arranged on the keyboard body, and tone selection keys. The external keyboard can reduce the keyboard selection times when Chinese characters are input, and improve the character inputting efficiency.
Owner:MITAC PRECISION TECH(KUNSHAN) CORP

Method and device for selecting sampling clock

The invention discloses a method and device for selecting a sampling clock and relates to the technical field of communication. The method and device for selecting the sampling clock reduces the number of selecting times of the sampling clock, improves data sampling accuracy and further improves the working efficiency of a system. The method for selecting the sampling clock comprises the steps of acquiring all current clock configuration values which can be used for sampling data accurately, adding adjusting values to first weights corresponding to all the stored clock configuration values respectively, generating second weights corresponding to the clock configuration values respectively, replacing the first weights to the second weights and carrying out storage, judging whether all the second weights corresponding to the clock configuration value respectively are identical or not, if the fact that not all the second weights corresponding to the clock configuration values respectively are identical is confirmed, selecting a maximum value from the second weights corresponding to the clock configuration values respectively, and determining the clock configuration value corresponding to the selected maximum value to be the current sampling clock. The method and device for selecting the sampling clock is mainly applied to the selecting process of the sampling clock.
Owner:HUAWEI TECH CO LTD

Self-adaption input method based on chapter document

The invention provides a self-adaption input method based on a chapter document. Compared with a conventional input method, the self-adaption input method has the advantage that a current knowledge domain of a user is automatically sensed based on a user local document. The self-adaption input method comprises the following steps: firstly, automatically establishing a fundamental data set by a system, establishing corresponding domain data sets in different knowledge domains, perceiving corresponding domains according to character information input by a user and automatically switching to a current domain data set by the system, increasing a specific gravity of the domain data set through adjusting a weight relationship between the domain data sets and the fundamental data set, realizing automatic perception and parameter adjustment among different knowledge domains; with the increase of input information, continuously updating the corresponding field data sets, and extracting high-frequency word string dynamic populating fundamental data set information in the field data sets. According to the self-adaption input method, the information input by the user is more intelligently known, the selection times is reduced, the accuracy of first-time selection is increased, and the rate of coincident code is remarkably reduced.
Owner:NANJING UNIV

WLAN antenna combination method and system

The invention provides a WLAN antenna combination method and system. The method includes the steps that on-off states of all antennas are endowed with antenna weights respectively, antenna weight sequences are formed according to selection of the antennas, and multiple antenna weight sequences are selected to constitute a contemporary antenna weight set suitable for genetic algorithm operation; pairing, crossover and variation are carried out on the antenna weight sequences to obtain a variation antenna weight set; if a variation result does not meet the requirement, selection, crossover and variation steps continue to be conducted on the mutation result till the antenna weight sequence with an adaptive value f larger than a threshold set by the system is found. A genetic algorithm is used for searching for antenna combinations meeting communication quality requirements, each crossover and variation result adaptive value can be superior to the previous crossover and variation result adaptive value by effectively using criteria of survival of the fittest and crossover-and-variation in the genetic algorithm, the antenna combinations meeting the communication quality requirements can be found rapidly, the number of times of section of the antenna combinations is reduced, system expenses are lowered, and the communication effect is improved.
Owner:GCI SCI & TECH

Information input method based on Chinese phonetic alphabets

A information input method based on the Chinese phonetic letter. The method adopts the syllable combining form 'initial consonant + consonant finals + tone', and uses any literal keyboard of 4 x 11 key mapping array. The Chinese phonetic letter is mapped on the 4 x 11 key mapping array. The initial consonant, consonant, finals and tone are inputted in turn to compose the Chinese phonetic letter.
Owner:梁晨

Text input method and device and electronic device

The embodiment of the invention provides a text input method and device and an electronic device. The method includes the steps of after an input method call instruction is received, displaying a common language soft keyboard on a current use interface, wherein character strings are bound to the virtual buttons in the common language soft keyboard in advance; when an input operation for the virtual buttons in the common language soft keyboard is detected, determining the character strings bound to the selected virtual buttons as the character strings input by the input operation this time. Bybinding the character strings to the virtual buttons, a user can select one character string at a time without selecting the character strings one by one, the selection frequency required by the userto input the character strings is reduced, and the input efficiency is improved.
Owner:BEIJING KINGSOFT INTERNET SECURITY SOFTWARE CO LTD

Method to reduce common mode voltage of svpwm motor

The invention discloses a method for reducing the common-mode voltage of an SVPWM motor. S1: Obtain the voltage under the static voltage coordinate system from the previous stage control link; S2: Apply the voltage under the static voltage coordinate system in step S1 to select the action vector voltage; S3 : select the inverse vector voltage; S4: recalculate the inverse vector voltage time according to the inverse vector voltage determined in step S3; S5: determine the switching point of the sector vector. In the present invention, the voltage opposite to the action vector in SVPWM is used to replace the zero vector, which is used to suppress the excessively high common-mode voltage of SVPWM. When the SVPWM is driving the motor, the excessively large common-mode voltage exists to break down the insulating oil film and cause a short circuit between shafts, even burning The hidden danger of bad motors, rapid common-mode voltage changes will also produce strong electromagnetic interference, affecting the stable operation of other nearby devices, reducing the size of the common-mode voltage can effectively prevent the motor from being damaged when the common-mode voltage is too high. The damage of the motor can prolong the life of the motor, improve the operating efficiency of the motor, and reduce the failure rate.
Owner:ANHUI UNIV OF SCI & TECH

Method and device for selecting test point of artificial electromagnetic material unit

The embodiment of the invention provides a method and a device for selecting a test point of an artificial electromagnetic material unit, comprising the steps of acquiring geometric parameters of the artificial electromagnetic material unit to be tested and the number of sampling sample points of the geometric parameters, constructing an uniform design table according to the geometric parameters and the number of the sampling sample points by a good lattice points manner, and selecting the test point of the artificial electromagnetic material unit indicated by the uniform design table. After implementing the invention, the test can be finished by selecting little testing points; the selecting number for the test points is reduced; test resources are saved; and the test design is optimized.
Owner:KUANG CHI INST OF ADVANCED TECH +1

Optimal method for path selection based on topology density correlation in farmland wireless ad hoc network

The invention relates to a farmland wireless self-organizing network topology density correlation path selecting and optimizing method. The method includes the steps that firstly, node energy is calculated, voting is carried out, and cluster heads are determined; secondly, nodes within a preset threshold value are received by the cluster heads and added, and clustering operation is carried out; thirdly, nodes corresponding to which clustering operation is not completed become intra-cluster sub-nodes according to a pre-established method; fourthly, energy advantage nodes are selected from the intra-cluster sub-nodes to serve as fake cluster heads; fifthly, reverse scattering and networking are carried out according to the cluster heads and the fake cluster heads; sixthly, environment information collecting and reporting are carried out on all nodes through a networking route; seventhly, whether a cluster head arrives at an energy approximating target or not is judged; eighthly, if a cluster head arrives at the energy approximating target, the next round is marked to carry out cluster head election, collection of the current round ends, and otherwise collection of the round ends. By means of the method, clustering efficiency is improved, cluster head selection frequency is lowered, and overall network energy efficiency is improved.
Owner:北京市农林科学院信息技术研究中心

Method for confirming service call control function selection starting time

Two kinds of method on realizing selection of service call controlling function entity, and one of them is HSS judging some public user identifier is not registered but provided service by S-CSCF, then sending the S-CSCF capability information of the user to the I-CSCF when the set condition of the selection S-CSCF is satisfied, otherwise sending the S-CSCF name providing service to the user to the I-CSCF without I-CSCF to select again. Another is performing the modification directly in local database by operation maintenance after HSS judging some S-CSCF is satisfied the set condition of the selection S-CSCF. In this way, the S-CSCF reselection course by the I-CSCF is not required. HSS returns the relative S-CSCF capability information only when the S-CSCF reselection is required by I-CSCF definitude. Applying the invention, the time of initiating S-CSCF selection is reduced, the Cx interface load is decreased, and the invalid S-CSCF selection initiated by the I-CSCF is avoided.
Owner:HUAWEI TECH CO LTD

Method and device for selecting test point of artificial electromagnetic material unit

The embodiment of the invention provides a method and a device for selecting a test point of an artificial electromagnetic material unit, comprising the steps of acquiring geometric parameters of the artificial electromagnetic material unit to be tested and the number of sampling sample points of the geometric parameters, constructing an uniform design table according to the geometric parameters and the number of the sampling sample points by a good lattice points manner, and selecting the test point of the artificial electromagnetic material unit indicated by the uniform design table. After implementing the invention, the test can be finished by selecting little testing points; the selecting number for the test points is reduced; test resources are saved; and the test design is optimized.
Owner:KUANG CHI INST OF ADVANCED TECH +1

A sampling clock selection method and device

The invention discloses a method and device for selecting a sampling clock and relates to the technical field of communication. The method and device for selecting the sampling clock reduces the number of selecting times of the sampling clock, improves data sampling accuracy and further improves the working efficiency of a system. The method for selecting the sampling clock comprises the steps of acquiring all current clock configuration values which can be used for sampling data accurately, adding adjusting values to first weights corresponding to all the stored clock configuration values respectively, generating second weights corresponding to the clock configuration values respectively, replacing the first weights to the second weights and carrying out storage, judging whether all the second weights corresponding to the clock configuration value respectively are identical or not, if the fact that not all the second weights corresponding to the clock configuration values respectively are identical is confirmed, selecting a maximum value from the second weights corresponding to the clock configuration values respectively, and determining the clock configuration value corresponding to the selected maximum value to be the current sampling clock. The method and device for selecting the sampling clock is mainly applied to the selecting process of the sampling clock.
Owner:HUAWEI TECH CO LTD

Method for reducing common-mode voltage of SVPWM motor

The invention discloses a method for reducing the common-mode voltage of an SVPWM motor. The method comprises the steps of S1, obtaining the voltage under a static voltage coordinate system from a preceding-stage control link; S2, selecting an action vector voltage by applying the voltage under the static voltage coordinate system in the step S1; S3, selecting an inverse vector voltage; s4, recalculating the inverse vector voltage time according to the inverse vector voltage determined in the step S3; and S5, determining a switching point of the sector vector. According to the invention, the voltage opposite to the action vector in the SVPWM is adopted to replace a zero vector to inhibit the over-high common-mode voltage of the SVPWM, the over-high common-mode voltage of the SVPWM breaks through an insulating oil film to cause an inter-shaft short circuit when the SVPWM drives the motor to cause the hidden danger of burning out the motor, and the rapid common-mode voltage change can also generate stronger electromagnetic interference, which affects the stable operation of other nearby devices, reduces the common-mode voltage, so that the motor is effectively prevented from being damaged under the condition that the common-mode voltage is too high, and the effects of prolonging the service life of the motor, improving the operation efficiency of the motor and reducing the failure rate are achieved.
Owner:ANHUI UNIV OF SCI & TECH

An Adaptive Input Method Based on Text Documents

The invention provides a self-adaption input method based on a chapter document. Compared with a conventional input method, the self-adaption input method has the advantage that a current knowledge domain of a user is automatically sensed based on a user local document. The self-adaption input method comprises the following steps: firstly, automatically establishing a fundamental data set by a system, establishing corresponding domain data sets in different knowledge domains, perceiving corresponding domains according to character information input by a user and automatically switching to a current domain data set by the system, increasing a specific gravity of the domain data set through adjusting a weight relationship between the domain data sets and the fundamental data set, realizing automatic perception and parameter adjustment among different knowledge domains; with the increase of input information, continuously updating the corresponding field data sets, and extracting high-frequency word string dynamic populating fundamental data set information in the field data sets. According to the self-adaption input method, the information input by the user is more intelligently known, the selection times is reduced, the accuracy of first-time selection is increased, and the rate of coincident code is remarkably reduced.
Owner:NANJING UNIV

wlan antenna combination method and system

The invention provides a WLAN antenna combination method and system. The method includes the steps that on-off states of all antennas are endowed with antenna weights respectively, antenna weight sequences are formed according to selection of the antennas, and multiple antenna weight sequences are selected to constitute a contemporary antenna weight set suitable for genetic algorithm operation; pairing, crossover and variation are carried out on the antenna weight sequences to obtain a variation antenna weight set; if a variation result does not meet the requirement, selection, crossover and variation steps continue to be conducted on the mutation result till the antenna weight sequence with an adaptive value f larger than a threshold set by the system is found. A genetic algorithm is used for searching for antenna combinations meeting communication quality requirements, each crossover and variation result adaptive value can be superior to the previous crossover and variation result adaptive value by effectively using criteria of survival of the fittest and crossover-and-variation in the genetic algorithm, the antenna combinations meeting the communication quality requirements can be found rapidly, the number of times of section of the antenna combinations is reduced, system expenses are lowered, and the communication effect is improved.
Owner:GCI SCI & TECH

Smart television voice recognition method and system and readable storage medium

The invention provides a smart television voice recognition method and system and a storage medium, which are used for a smart television to recognize a dialect of a user, and the smart television receives a voice instruction of user interaction operation; the voiceprint recognition module determines the dialect type used by the user according to the voiceprint characteristics of the voice instruction of the user interaction operation; and the voice recognition module directly converts the voice instruction of the user interaction operation into characters according to the dialect type used bythe user so as to recognize the voice instruction of the user. According to the invention, a user operates the smart television through voice, the smart television does not need to select the dialecttype in the whole operation process of recognizing the voice of the user and performing recognition feedback, and for a family using the smart television and having multiple dialects, the dialect spoken by the user can be automatically recognized, and the voice instruction of the user interaction operation is directly recognized according to the voice recognition technology of the dialect, so that the selection frequency of the user for the dialect is greatly reduced, and the voice operation experience of the user is improved.
Owner:SHENZHEN TCL NEW-TECH CO LTD

Design method for pipeline passing through reverse fault with vibration peak value being more than 0.4g

The invention discloses a design method for a pipeline passing through a reverse fault with the vibration peak value being more than 0.4g. The design method comprises the steps that (1) the reverse fault and the pipeline are selected; (2) the fault dip angle alpha of the reverse fault is measured, and the surface vertical displacement D<CV> and the surface horizontal displacement D<CH> of the reverse fault are calculated respectively; (3) according to H, the intersection angle beta of the pipeline and the reverse fault is selected; (4) delta X is calculated by means of the equation that delta X=D<CH>*cos beta, and delta Y is calculated by means of the equation that delta Y=D<CH>*sin beta; (5) delta L<c> is calculated by means of the equation that ; (6) delta L is calculated by means of the equation that ; (7) whether delta L is less than or equal to delta L<c> is judged, it is determined that the designed pipeline is suitable for being installed in the revere fault if delta L is less than or equal to delta L<c>, and if delta L is greater than delta L<c>, the step (1), the step (5) and the step (6) are repeated until the delta L is less than or equal to delta L<c>. The design method is reasonable, achieves reliable pipeline design, and can guarantee that pipelines installed in reverse faults with different conditions all have good shock resistance.
Owner:BC P INC CHINA NAT PETROLEUM CORP +2

Real-time protection method and device

The invention provides a real-time protection method and a device, belonging to the technical field of computer. The embodiment of the invention is provided with a corresponding relation between driving layer regulations and application layer regulations; each driving layer regulation corresponds to one or more than one application layer regulations. The method provided by the invention comprises the following steps of: when monitoring an event which is the same as a pre-set protection monitoring event, judging whether the event accords with the pre-set driving layer regulations; if not, finishing the step; judging whether application layer regulations which corresponds to the driving layer regulations are existed; if not, finishing the step; according to the obtained event parameters, filtering the event through the application layer regulations and sending a filtering result to driving layers. The embodiment of the invention can utilizes a second-grade detection way to filter the event when then pre-set event happens. The method and the device provided by the invention reduce the selection time which is supplied to users and improve the experience of users.
Owner:SHENZHEN TENCENT COMP SYST CO LTD
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