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1142 results about "Real time prediction" patented technology

Intelligent ammeter fault real time prediction method based on decision-making tree

ActiveCN106054104AReflect real-time fault conditionsElectrical measurementsData dredgingSmart meter
Provided is an intelligent ammeter fault real time prediction method based on a decision-making tree, comprising the steps of: 1, pre-processing intelligent ammeter data of an electricity information acquisition system; 2, according to an intelligent ammeter fault determination model, screening the fault data of intelligent ammeters in the electricity information acquisition system and sending the fault data into an intelligent ammeter fault database; 3, dividing the historic data in the intelligent ammeter fault database into a training set and a test set, employing a decision-making tree algorithm to perform data excavation on the training set, and forming an intelligent ammeter fault decision-making tree and a preliminary classification rule; 4, through the data of the test set, performing accuracy assessment on the preliminary classification rule, determining the preliminary classification rule if the accuracy meets requirements, or else returning to the training set for training again; 5, generating an intelligent ammeter fault real time prediction model according to a finally determined classification rule; and 6, linking an intelligent ammeter real time fault database to the intelligent ammeter fault real time prediction model for real time prediction to obtain intelligent ammeter fault real time prediction results.
Owner:国网新疆电力有限公司营销服务中心 +1

Tool wear condition prediction method of numerical control machine tool based on parallel deep neural network

The invention discloses a tool wear condition prediction method of a numerical control machine tool based on a parallel deep neural network. A dynamometer, an acceleration sensor and an acoustic sensor are installed on a workbench and a fixture of the numerical control machine tool; a milling experiment is conducted, the cutting force and vibration and acoustic signals of a milling process are collected so as to obtain multisensor data, and the wear capacity of a tool is collected; pretreatment is performed so as to obtain training data and to-be-tested data; a parallel deep neural network model is established; the treated training data and the label of the wear capacity of the tool are input into an offline training model in the parallel deep neural network model; and the to-be-tested multisensor data are introduced into the trained model so as to predict the wear capacity of the tool in real time and on line. According to the method, the implied characteristics during tool processingof the numerical control machine tool are fully mined, and the wear capacity of the tool can be predicted in real time. The method has the advantage of wide applicability and can be widely applied tovarious numerical control machine tools.
Owner:ZHEJIANG UNIV

Multiple-target operation optimizing and coordinating control method and device of garbage power generator

The invention provides a multiple-target operation optimizing and coordinating control method and a device of a garbage power generator. The multiple-target operation optimizing and coordinating control method includes the following steps. Operational parameters are downloaded from a data communication system (DCS), data judged as reasonable based on a threshold value are transmitted to a database. In terms of environmental protection, economy and safety of the power generator, three models are respectively set up by means of a support vector machine and a fuzzy neural network. A modified strength PARETO genetic algorithm is used for comprehensively optimizing multiple targets and then optimum operation parameters under the present working condition are worked out. Operational staff can adjust operation of corresponding parts based on the optimum operation parameters. The device comprises a data collecting module, a data filtering module, a database module, a data modeling module, an optimizing module, a forecasting module, a remote monitoring module, a monitor, an alarming module and a manual alarming module. The multiple-target operation optimizing and coordinating control method and the device of the garbage power generator achieve multiple functions of real-time forecasting, offline simulation, dynamic optimizing and the like and have the advantages of being strong in adaptability, good in self-learning ability, high in fitting precision, obvious in optimizing effect and the like.
Owner:SOUTH CHINA UNIV OF TECH

Vehicle driving risk prediction method based on time varying state transition probability markov chain

ActiveCN107742193AMeet the real-time requirements of anti-collision warningImprove accuracyResourcesDriving riskRisk model
The invention provides a vehicle driving risk prediction method based on time varying state transition probability markov chain. Firstly, an offline vehicle driving risk prediction model training: based on samples of accidents and near accidents, real-time vehicle driving risk states are divided by clustering time window characteristics parameters and regarded as countable states of the markov chain, and a multiterm logistic model of vehicle driving risk states transition in different vehicle driving risk states is built. Secondly, an online vehicle driving risk model real-time prediction: under the circumstance of car networking, the variable parameters required by a prediction model are collected in real time, through a risk state clustering center position and markov property, an original state probability distribution vector and a markov chain n steps transition probability at any time in the future are calculated, and the prediction result of the vehicle risk states in the futureis obtained. According to the invention, by means of a recurrence algorithm, the estimation of markov chain n steps time varying state transition probability is achieved, which can reflect the characteristics of the vehicle driving risk states changing with the characteristics of the transportation system, and can meet the requirement of early warning in real time.
Owner:JIANGSU UNIV

Method and System for Assisting in Typing

The invention relates to a computerized system for predicting completions to input text which is typed by a user to a text-oriented active application within a client computer, which comprises: (a) an off-line server that gathers texts from textual repositories, analyzes and processes the same to produce entries for an off-line database, said off-line server updates periodically a real time database of a real time server; (b) a real-time prediction server for receiving from an agent at said client computer serial requests for predictions, extracting in response to each of said requests one or more text predictions from tables within said real time database, and for conveying said one or more text predictions to said agent, wherein each of said text predictions comprises one or more words; (c) said real time database which comprises one or more tables containing word combination entries of various sizes, wherein each of said entries is associated with a weight which is used to estimate the probability for this combination to complete the typed text as included in the respective request for prediction; and (d) said agent which extracts in real time each present user typing to said text-oriented application, produces requests for prediction for new typing, sends the same to said prediction server, receives in response said one or more text predictions, and presents to said user said one or more text predictions for selection.
Owner:A I TYPE

Continuous prediction method of gas emission dynamic characteristic outburst of tunneling surface

The invention relates to the technical field of coal mine safety, in particular to a continuous prediction method of gas emission dynamic characteristic outburst of a tunneling surface, which utilizes the development state and the development trend of three factors of outburst comprehensive hypothesis of the tunneling surface of gas emission dynamic characteristic reaction of the tunneling surface and realizes the non-contact type continuous prediction technology of coal of the tunneling surface and gas outburst; and the method comprises the following steps: acquiring real-time gas emission monitoring data of an underground gas sensor from a coal mine gas monitoring system; extracting dynamic characteristics of gas emission of the tunneling surface, including average value of frequency ofthe monitoring data of the gas emission, the maximum value of the frequency per minute of the monitoring data of the gas emission and the movement minimum value of the frequency per t minutes of the gas emission; and acquiring the shape design characteristic parameters of a lane, the original desorbable gas content of a coal layer, wind rate and frequency time, sequentially acquiring characteristic index of the gas emission rate of the tunneling surface, gas desorption index and gas dividing source characteristic index, and carrying out real-time prediction and forecast of outburst risk of a working surface according to the states and the trends of the three characteristic indexes.
Owner:CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD

Method for predicting internal temperature of battery in real time

The invention provides a method for predicting the internal temperature of a battery in real time, and relates to the real-time prediction methods for the battery. The problem that the actual internal working temperature of the battery can not be embodied by battery surface temperature monitoring is solved. According to the method, the battery is divided into an inner core and an outer shell, temperature prediction models are established respectively, the specific heat capacity of the internal material and the surface material of the battery, the thermal-resistance parameter of the inner core-outer shell of the battery, the thermal-resistance parameter of the outer shell-the outside of the battery, the open-circuit voltage curve of the battery, the curve of the open-circuit voltage variation with temperature and the like are acquired by an experiment method. A Kalman filtering method is used for tracking and correcting the internal temperature of the battery in real time, real-time battery surface and environment temperatures are input into the predication models, and the internal temperature of the battery is predicted in real time. The method is suitable for predicting the internal temperature of the battery in an electrical automobile and an energy storage system.
Owner:HARBIN INST OF TECH

Method for predicting space-time traveling track of blacklisted vehicle

The invention relates to a method for predicting the space-time traveling track of a blacklisted vehicle. The method comprises the prediction of the traveling route of the blacklisted vehicle and the prediction of the traveling time of the blacklisted vehicle on the predicted traveling route. The prediction of the traveling route is achieved with a traveling route predicting method based on historical route similarity. The prediction of the traveling time of the blacklisted vehicle on the predicted traveling route is achieved with a traveling time predicting method based on road traffic condition evaluation. The method for predicting the space-time traveling track of the blacklisted vehicle is high in efficiency. According to the method for predicting the space-time traveling track of a blacklisted vehicle, the traveling route of the blacklisted vehicle can be predicted in real time after the blacklisted vehicle appears, the next position where the blacklisted vehicle might appear and the time when the blacklisted vehicle appears at the position can be determined, video surveillance and control can be conducted on the corresponding position in advance according to the predicted traveling route and the predicted traveling time of the blacklisted vehicle, and decision aids are provided for the arrest of the blacklisted vehicle.
Owner:INST OF INFORMATION ENG CAS

Micro-grid robustness multi-target operation optimization method containing renewable energy resources

InactiveCN105550766AFull processingThe method is simple and objectiveForecastingSystems intergating technologiesLeading edgeMulti objective model
The invention discloses a micro-grid robustness multi-target operation optimization method containing renewable energy resources. The method comprises the steps of: collecting micro-grid operation information, generating an uncertainty implementation scene in micro-grid operation, constructing a robustness multi-target model according to micro-grid attributes, inputting the robustness multi-target model and the uncertainty implementation scene into a two-stage solving strategy, carrying out iterative solving respectively on an internal layer maximum optimization problem under the uncertainty scene and an external layer minimum optimization problem under an operation scheme until an ending condition is met and circulation is stopped, forming an optimal operation scheme set, and selecting an optimal operation strategy according to real-time prediction data. The optimal robustness non-domination leading edge of economy and environment can be obtained under a worst uncertainty condition. Compared with an existing operation optimization method, the operation optimization method provided by the invention realizes interference inhibition of uncertainty in the micro-grid operation under a multi-target framework.
Owner:SHANDONG UNIV +1

Gas concentration real-time prediction method based on dynamic neural network

The invention provides a gas concentration real-time prediction method based on a dynamic neural network. Firstly, the neural network is trained by means of data in a mine gas concentration historical database, activeness of hidden nodes of the network and learning ability of each hidden node are dynamically judged in the network training process, splitting and deletion of the hidden nodes of the network are achieved, and a network preliminary prediction model is built; secondly, mine gas concentration information is continuously collected in real time and input into the prediction model of the neutral network to predict the change tendency of gas concentration in the future, and the network is trained timely through predicted real-time data according to the first-in first-out queue sequence to update a neutral network structure in real time, so that the neutral network structure can be adjusted according to real-time work conditions to improve gas concentration real-time prediction precision. According to the method, the neural network structure can be adjusted timely on line according to the real-time gas concentration data, so that gas concentration prediction precision is improved, and the technical requirements of a mine gas concentration information management system are met.
Owner:LIAONING TECHNICAL UNIVERSITY

Real-time prediction method of mine gas concentration in short and medium terms based on radial basis function neural network integration

The invention discloses a real-time prediction method of mine gas concentration in short and medium terms based on radial basis function neural network integration. The method comprises the following steps of: taking mine gas concentration data as a chaotic time series to construct a plurality of prediction sub-models of radial basis function (RBF) neural networks, and taking a weighted mean of synchronous prediction results of all prediction sub-models as an integrated prediction value to realize prediction model initializtion of RBF neural network integration; then realizing prediction of the gas concentration in the range of from a short term to a medium term through setting an integrated capacity parameter (the integrated capacity parameter is also equal to an RBF network prediction step-length); and obtaining a new prediction sub-model by utilizing an incremental training mode aiming at the characteristics that gas concentration information is continuously collected, and realizing updating of the RBF neural network integration according to a first in first out queue sequence so as to improve real-time prediction precision of the gas concentration, therefore, a proper compromise can be obtained between prediction range and prediction precision requirements, and the technical requirement on a mine gas information management system is satisfied.
Owner:ZHONGBEI UNIV

Fan control method and device of server and server

The invention provides a fan control method and a fan control device of a server and the server, wherein the server comprises a plurality of feature components and a plurality of fans. The method comprises the following steps: measuring temperature information and power consumption information of the plurality of feature components of the server; obtaining a current work mode of the server according to the temperature information and the power consumption information of the plurality of feature components; obtaining temperature of a plurality of key positions in the server according to the current work mode of the server and the preset temperature prediction model; respectively controlling the plurality of fans according to the temperature of the plurality of key positions. By adopting the method disclosed by the embodiment of the invention, real-time prediction of the temperature of the plurality of key positions is achieved in a numerical simulation manner under the premise of not increasing a physical sensor to the server; the plurality of fans are respectively controlled according to the real-time prediction temperature; the reliability of real-time measurement of temperature of the server is improved; the potential safety hazard in the server is reduced; meanwhile, the fans of the server are accurately controlled, and the waste of power consumption of the fans is avoided.
Owner:BEIJING BAIDU NETCOM SCI & TECH CO LTD
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