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40results about How to "Uniform data" patented technology

Transformer fault detecting method based on simplified set unbalanced SVM (support vector machine)

Disclosed is a transformer fault detecting method based on a simplified set unbalanced SVM. The method comprises (1) obtaining a characteristic vector set through a fault characteristic extracting method based on GARCH models; (2) performing determination of boundary samples on minority-class samples to obtain a minority-class boundary sample set S, wherein the minority-class samples are fault samples; randomly selecting N[x]={2, , ISI}, wherein ISI is the cardinal number of S, a[i]=1, and i=1, N[x], and setting N[z] to be 1, utilizing a simplified set solution algorithm to obtain Z[1] and repeating the operation for N[L]-N[M] times, wherein N[L] is the number of majority samples, N[M] is the number of minority samples, and accordingly, N[L]-N[M] is the number of artificial minority samples, and guaranteeing N[z]=ISI for at least one once; (3) combining the artificial minority samples obtained in the step (2) with original minority samples to serve as the training samples of an SVM classifier and lastly to obtain an SVM decision model; (4) inputting newly-obtained transformer characteristic vectors into the decision model for judgment. The transformer fault detecting method based on the simplified set unbalanced SVM is applied to transformer fault detection.
Owner:STATE GRID CORP OF CHINA +2

Data link equalization method, mobile terminal and computer readable storage medium

The invention discloses a data link equalization method, a mobile terminal and a computer readable storage medium. The data link equalization method is applied to the mobile terminal including two WiFi antennas and two data channels, and used for the data links generated by the upper application and transmitted by two data channels when two wireless hotspots are connected at the same time. The data link equalization method comprises the following steps: detecting the link delay of the two data channels by the mobile terminal; calculating the average link delay of the two data channels based onthe detected link delay and the preset smoothing algorithm; and confirming the data link equalization ratio of the two data channels according to the average link delay of two data channels, so thatthe data links newly built by the upper application can be allocated to two data channels for transmission based on the confirmed data link equalization ratio when the data links newly built by the upper application are detected. According to the invention, the data link equalization ratio is adjusted through the link delay of the two data channels, therefore, the data balance of the two data channels can be effectively guaranteed, and the network access efficiency is improved.
Owner:北京华夏雅库网络科技股份有限公司

Unbalanced SVM Transformer Fault Detection Method Based on Simplification and Reduction

Disclosed is a transformer fault detecting method based on a simplified set unbalanced SVM. The method comprises (1) obtaining a characteristic vector set through a fault characteristic extracting method based on GARCH models; (2) performing determination of boundary samples on minority-class samples to obtain a minority-class boundary sample set S, wherein the minority-class samples are fault samples; randomly selecting N[x]={2, , ISI}, wherein ISI is the cardinal number of S, a[i]=1, and i=1, N[x], and setting N[z] to be 1, utilizing a simplified set solution algorithm to obtain Z[1] and repeating the operation for N[L]-N[M] times, wherein N[L] is the number of majority samples, N[M] is the number of minority samples, and accordingly, N[L]-N[M] is the number of artificial minority samples, and guaranteeing N[z]=ISI for at least one once; (3) combining the artificial minority samples obtained in the step (2) with original minority samples to serve as the training samples of an SVM classifier and lastly to obtain an SVM decision model; (4) inputting newly-obtained transformer characteristic vectors into the decision model for judgment. The transformer fault detecting method based on the simplified set unbalanced SVM is applied to transformer fault detection.
Owner:STATE GRID CORP OF CHINA +2

R-type discharge coil

PendingCN108962532AElectrical Data EqualizationUniform dataCores/yokesCoilsEpoxyLow voltage
Provided is an R-type discharge coil. The R-type discharge coil is formed by encapsulating of an R-type iron core, a first winding, a secondary winding, a high-voltage terminal, a low-voltage terminaland epoxy resin. The first winding and the second winding are formed by winding of F-grade copper enamelled wires. The secondary winding winds around the insulated R-type iron core. The first windingwinds around an epoxy framework. The first winding is connected with the high-voltage terminal. The secondary winding is connected with the low-voltage terminal. An overall machine body is made by vacuum casting of the outdoor epoxy resin which is weather-proof and ultraviolet ray-resistant. The R-type iron core adopts one strip of oriented silicon steel sheet band material which is continuous. The strip of oriented silicon steel sheet band material winds around an exclusive die and is composed of two-stage or three-stage iron core with different widths. The R-type discharge coil is compact in overall structure, high in anti-short circuit impact capability, low in zero load current, zero load loss, noise and calorific value and is resistant to rust without sharp corners and tip stress. Therefore, an internal electric field of a product is uniform without point discharge phenomenon. partial discharge meets the requirement.
Owner:青岛大升电力电气科技有限公司

A small sample plant disease identification method and system

The invention discloses a small-sample plant disease identification method and system. The method includes: randomly selecting a plurality of original pictures containing diseases as the first sample set; expanding the first sample set through an improved deep convolution-based generative adversarial network to obtain a second sample set; performing a second sample set on the second sample set Verifying and constructing a training set together with all or part of the second sample set that has passed the verification and the original picture that does not contain the disease; training the convolutional neural network based on the training set to obtain a classification model; inputting the image of the disease to be identified into the classification model to obtain the disease Recognition results. In the present invention, aiming at the disease pictures of small samples of plants, the improved deep convolution generation confrontation network is used to expand the sample set, so that the positive and negative ratio of the expanded second sample set is roughly 1:1, so that the data is balanced, and the two The number of patients has reached 10,000, and the convolutional neural network is used to classify the diseases on the expanded second sample set, which has a good classification effect.
Owner:CHONGQING UNIV

Method for solving unreasonable spatial and temporal distribution of dust load equipment

The invention discloses a method for solving unreasonable spatial and temporal distribution of dust load equipment. The method comprises the following steps: dividing a road into n road sections with uniform length; for each road section, uploading a group of data of each road section by the communication module to the Internet platform at a fixed frequency f each time; taking the data volume uploaded in the time period T as a data source, and calculating a standard value of the data volume of each road section; calculating the ratio of the standard value to the data volume of each road section to obtain a correction coefficient, and obtaining the corrected uploading frequency fan = f * xan; and when the positioning module recognizes that an road section is entered, transmitting a correction coefficient by the internet platform to the communication module, adjusting the data uploading frequency by the data processing module to fan, and finally presenting the corrected data volume of the road section. According to the technical scheme adopted by the invention, no extra hardware cost is added, and the method is easy to implement, therefore, road data balance is achieved, and a positive guidance value can be provided for urban governance.
Owner:NOVA FITNESS CO LTD
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