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30results about How to "Realize the predictive function" patented technology

Driver fatigue detection system on basis of infrared detection technology

The invention relates to a driver fatigue detection system and belongs to the technical field of detection equipment. The driver fatigue detection system comprises a CCD (charge coupled device) camera connected with a DSP (digital signal processor) through a video input decoder, and detection images are subjected to mode identification and processing. An infrared light source of the CCD camera is composed of two groups of infrared diodes, and the infrared diodes are uniformly distributed on a same ring of the same plane and same axis and are optionally switched. The infrared diodes emit infrared light of 850nm and 950nm in wavelength. The driver fatigue detection system is characterized in that judgment of lip syncing is added on the basis of human eye area judgment, so that probability of judgment missing or mistakes is decreased. By a method for differentiating odd-even frames of the images, positions and characteristics of eyes and lips can be accurately detected, and fatigue degree of a driver can be accurately detected. By the aid of a Kalman filter and a Mean-shift algorithm, the positions and the characteristics of the eyes and the lips are continuously detected; by a short-time tracking strategy, the eyes and the lips are tracked, and prediction is realized.
Owner:YANTAI TAIMING LIGHTING CO LTD

Enterprise safety risk early warning method based on analytic hierarchy process and grey theory

The invention relates to the field of informatization technologies and risk management and control forecasting and early warning, in particular to an enterprise safety risk early warning method based on an analytic hierarchy process and a grey theory. By means of quantification and indexation of each safety production correlation index, weight coefficient of each index is calculated or obtained by the analytic hierarchy process or an enterprise self-defined method, and enterprise safety production risk indexes of next stage are forecasted according to input of historical data of each enterprise index and with the grey theory in fuzzy mathematics as a modeling basis. The enterprise safety risk early warning method based on the analytic hierarchy process and the grey theory has the advantages that the historical data are used as the basis, after the modeling basis is determined, a risk early warning index model is subjected to mathematical verification and historical data verification, a model is properly modified, threshold value determining is performed on a production accident risk early warning model, immediate output of early warning signals is achieved so that safety conditions and future development trends in the enterprise safety production process can be visually displayed, and a forecasting function of enterprise safety production risks can be achieved.
Owner:中钢集团武汉安全环保研究院有限公司 +1

Traffic jam prediction method, device and equipment and storage medium

The invention relates to the field of artificial intelligence, discloses a traffic jam prediction method, device and equipment and a storage medium. The method is used for solving the technical problem that a traffic jam condition cannot be predicted in an existing urban intelligent traffic system. The method comprises the following steps: according to a traffic jam prediction request, obtaining traffic flow data at each traffic gate to obtain a traffic flow data set; analyzing the parameters of the traffic checkpoints in the traffic flow data set by using a big data analysis technology to obtain node parameters; calculating the relationship among the traffic checkpoints to obtain edge parameters; and generating a traffic map in a preset time period based on the node parameters and the edge parameters through a pre-constructed road network knowledge graph, and inputting the traffic map into a traffic prediction model pre-established based on a graph convolutional neural network for road condition prediction processing to obtain a predicted value of the congestion degree of each traffic gate corresponding to the traffic congestion prediction request. In addition, the invention also relates to a block chain technology, and the related information of the traffic flow data can be stored in a block chain.
Owner:PINGAN INT SMART CITY TECH CO LTD

Method and device for predicting fault of turnout switch machine

The invention provides a method and device for predicting fault of a turnout switch machine. The method comprises the following steps: acquiring action current data of a turnout switch machine and taking the current data as a prediction set; extracting current characteristic values of each current data in the prediction set; respectively carrying out decision and classification on the current characteristic value of each current data in the prediction set by adopting the decision tree of each working stage of the turnout switch machine to obtain a classification result of whether each currentdata in the prediction set is in fault or not in each working stage of the turnout switch machine, determining an abnormal current characteristic value when a certain current data in the prediction set is in a fault in any working stage of the turnout switch machine to obtain a fault prediction result. The decision tree of each working stage of the turnout switch machine is pre-established based on the obtained turnout switch machine action current data sample of each working stage, a characteristic value set of the current of the turnout switch machine in each working stage and a pre-established fault characteristic set of the turnout switch machine. The method and device for predicting fault of the turnout switch machine can realize the fault prediction function of the turnout switch machine.
Owner:广西交控智维科技发展有限公司

Heat exchanger filth blockage detection method and device

The invention relates to a heat exchanger filth blockage detection method and device. The method comprises the steps of collecting the actual operation data of a heat exchanger during operation, and obtaining the theoretical operation state data through calculation according to the actual operation data and a predetermined operation state model, wherein the operation state model is determined according to operation data and operation state data when the heat exchanger is not blocked by dirt; acquiring actual operation state data corresponding to the actual operation data when the heat exchanger operates; and according to the actual operation state data and the theoretical operation state data, determining whether filth blockage occurs to the heat exchanger. According to the method, the filth blockage degree of the unit heat exchanger can be judged based on historical data, the judgment effect and the detection speed are improved, the problems of too large algorithm error and insufficient stability caused by few monitored operating parameters are solved, the accuracy of filth blockage judgment of the heat exchanger is improved, and the development trend can be summarized through historical operation data and real-time operation data, so that the filth blockage condition of the heat exchanger in the future is accurately predicted.
Owner:GREE ELECTRIC APPLIANCES INC

Building inclination angle prediction method and system

The invention provides a building inclination angle prediction method and system. The method comprises the following steps: reading and inputting an inclination angle measurement value into a data matrix; according to a matrix decomposition method and a gradient descent method, fitting the inclination angle measurement value in the data matrix to obtain inclination angle predication values corresponding to all points in the data matrix, and outputting the inclination angle predication values when the preset conditions are met; saving data of the wind direction and the wind speed at the points, corresponding to the inclination angle predication values which exceed the inclination angle threshold, in the data matrix to form an inclination-prone wind direction and wind speed data set; comparing the predication values of the wind direction and the wind speed in an environment where a building is positioned with the data of the wind direction and the wind speed at such points in the easy-inclination wind direction and wind speed data set; when the predication value falls into a preset range, sending an early warning signal. Through the adoption of the method and the system, the inclination angle of the building in the preset wind direction and wind speed conditions can be predicted, so that the wind direction and wind speed corresponding to the situation that the building is prone to inclination can be obtained, the warning function is achieved, and the building is prevented from collapsing.
Owner:CRSC COMM & INFORMATION GRP CO LTD

Automatic blue algae monitoring and early warning method and automatic blue algae monitoring and early warning system

The invention discloses an automatic blue algae monitoring and early warning method and an automatic blue algae monitoring and early warning system. The method comprises the following steps: shootinga certain image of blue algae in a water area in real time to obtain a corresponding blue algae image; corroding and expanding the blue algae image, and filling holes to obtain an RGB histogram of theblue algae image; converting the blue algae image into a gray-scale image, and solving an LBP map to obtain an LBP histogram; obtaining color features and texture features of the blue algae image; weighting and fusing the color features and the texture features at a decision level to form fused features; identifying a blue algae area of the blue algae image according to the fused features; calculating a pixel proportion of the blue algae area occupying the whole blue algae image; and judging a standard range of the blue algae image according to the pixel ratio, and sending out corresponding early warning information. The invention has a good application effect on multi-feature fusion under small samples, high-dimensional space and uncertainty, does not depend on the number and quality ofthe samples excessively, and realizes monitoring and early warning of the blue algae.
Owner:HEFEI UNIV

Large-break-angle welding seam tracking and obstacle prediction system based on binocular four-line vision sensing

ActiveCN113385779ARealize the predictive functionReal-time adjustment of welding torch distanceWelding accessoriesEngineeringWeld seam
The invention relates to a large-break-angle welding seam tracking and obstacle prediction system based on binocular four-line vision sensing, and is applied in the field of welding automation and welding seam tracking. The system is technically characterized by comprising a crossed four-line type laser visual system, a single-line type laser displacement sensing system, an intelligent visual processing computer system, two industrial wide-angle lenses, two dimming and filtering systems, a support, a box body and a cover plate. According to the system, a welding-seam-like track of a full-pose large-break-angle workpiece is obtained through the crossed four-line type laser vision system; through synchronous scanning laser rays of the intelligent visual processing computer system on the crossed four-line type laser visual system, shooting by the industrial lenses and processing of light rays by the dimming and filtering systems, the assembly clearance of the large-break-angle workpiece is obtained; meanwhile, transverse distance data are obtained through the single-line type laser displacement sensing system; and welding seam tracking and obstacle prediction of the large-break-angle workpiece are realized through data processing fusion of the welding-seam-like track of the full-pose large-break-angle workpiece by the intelligent visual processing computer system, the assembly clearance of the large-break-angle workpiece and the transverse distance data.
Owner:XIANGTAN UNIV

Automatic computing system and method for piece inventories

InactiveCN102024191ARealize the predictive functionHelp in decision makingData processing applicationsPrecognitionComputing systems
The invention relates to an automatic computing system for piece inventories, comprising a virtual inventory judging unit, an import declaration unit, a virtual inventory maintaining unit and an actual inventory maintaining unit, wherein the virtual inventory judging unit is used for judging whether a piece number in a piece customs entry document is larger than a virtual piece turnover allowance or not, and the virtual piece turnover allowance is the difference of a piece turnover amount and a virtual piece inventory in an electronic account book; the import declaration unit is used for declaring the piece customs entry document to a customs supervision system when the virtual inventory judging unit confirms that the piece number in the piece customs entry document is smaller than the virtual piece turnover allowance; the virtual inventory maintaining unit is used for checking the virtual piece inventory in the electronic account book according to the piece number in the piece customs entry document; and the actual inventory maintaining unit is used for checking an actual piece inventory in the electronic account book when receiving the import customs clearance feedback of the customs supervision system. The invention also provides a corresponding method. By adding the calculation of virtual inventory amount in the customs declaration link, the invention realizes the precognition function of inventory.
Owner:深圳市鹏海运电子数据交换有限公司

An Experimental Method for Predicting Coke Quality at Different Heights in Coke Oven

ActiveCN109575971BAddressing performance differencesRealize the predictive functionCoke ovensThermodynamicsProcess engineering
The invention discloses an experimental method for predicting quality of cokes at different height positions in a coke oven. The method includes steps: acquiring a height H from a coal loading port toa coking chamber of a to-be-tested coke oven, a conventional coal loading height h and an average width d of the coking chamber; determining a height h and a width d of an experimental coal container; determining a distance h' between an actual coal loading port and a coal line after coal leveling in an experimental coal container production coke oven; acquiring a total loading bulk density rho in the experimental coal container; determining a height h1 between a researched position and the bottom to obtain bulk density rho 1 at the h1; performing a coking experiment, accurately controlling bulk density of each section and the total loading bulk density rho to be identical, and establishing a corresponding relation between experimental coke and produced coke; after bulk density of each section is controlled to be identical to the bulk density rho 1 at the h1, acquiring a strength index of the experimental coke, and finally acquiring an index of coke produced at the height h1 between the researched position and the bottom according to the corresponding relation between experimental coke and produced coke.
Owner:SHOUGANG CORPORATION

Public opinion information-based product prediction method and system

The invention relates to a public opinion information-based product prediction method and system. The method comprises the following steps: extracting public opinion corpus related to set category products from public opinion data; extracting an entity from the public opinion corpus through an entity recognition model; counting the volume of a product entity in the entities in the public opinion data; adopting a text sentiment classification model to carry out sentiment discrimination on the product entity to obtain entity sentiment information; and calculating a hotspot score of the product entity according to the volume of the product entity and the entity emotion information. According to the technical scheme provided by the invention, the entity corresponding to the product and the emotional information and the volume of the entity are obtained by analyzing and identifying the public opinion data, and the hotspot score obtained by calculating the two aspects of information including the emotional information and the volume can reflect the possibility that the product becomes a hotspot product, so that the function of predicting the hotspot product is realized; and product enterprises can be helped to quickly track market trends, grasp business opportunities and closely follow public opinion wind directions.
Owner:MIAOZHEN INFORMATION TECH CO LTD

Experimental method for predicting quality of cokes at different height positions in coke oven

ActiveCN109575971AReach predictive functionAddressing performance differencesCoke ovensExperimental methodsEngineering
The invention discloses an experimental method for predicting quality of cokes at different height positions in a coke oven. The method includes steps: acquiring a height H from a coal loading port toa coking chamber of a to-be-tested coke oven, a conventional coal loading height h and an average width d of the coking chamber; determining a height h and a width d of an experimental coal container; determining a distance h' between an actual coal loading port and a coal line after coal leveling in an experimental coal container production coke oven; acquiring a total loading bulk density rho in the experimental coal container; determining a height h1 between a researched position and the bottom to obtain bulk density rho 1 at the h1; performing a coking experiment, accurately controlling bulk density of each section and the total loading bulk density rho to be identical, and establishing a corresponding relation between experimental coke and produced coke; after bulk density of each section is controlled to be identical to the bulk density rho 1 at the h1, acquiring a strength index of the experimental coke, and finally acquiring an index of coke produced at the height h1 between the researched position and the bottom according to the corresponding relation between experimental coke and produced coke.
Owner:SHOUGANG CORPORATION

Method and system for predicting building inclination angle

The invention provides a method and system for predicting the inclination angle of a building. The method includes the following steps: reading the measured value of the tilt angle and importing it into the data matrix; using the matrix decomposition method and the gradient descent method to fit the measured value of the tilt angle of the data matrix to obtain the corresponding points in the data matrix The predicted value of the tilt angle, and when the preset conditions are met, the predicted value of the tilt angle is output; all the predicted values ​​of the tilt angle exceeding the preset tilt angle threshold are saved in the wind direction and wind speed at the corresponding point in the data matrix, forming an easy-to-tilt wind direction Wind speed data set; compare the forecast value of the wind direction and wind speed of the environment where the building is located with the wind direction and wind speed at each point in the easily inclined wind direction and wind speed data set; when it falls within the preset range, an early warning signal is issued. It can predict the inclination angle of the building at a given wind direction and wind speed, so as to obtain the corresponding wind direction and wind speed when the building is prone to inclination, realize the alarm function, and prevent the building from collapsing.
Owner:CRSC COMM & INFORMATION GRP CO LTD

Method and device for detecting dirty blockage of heat exchanger

The invention relates to a method and device for detecting dirty blockage of a heat exchanger, which includes collecting actual operating data during operation of the heat exchanger, and calculating theoretical operating state data according to the actual operating data and a predetermined operating state model; wherein, the operating The state model is determined according to the operating data and operating state data when the heat exchanger is not dirty and blocked; the actual operating state data corresponding to the actual operating data during the operation of the heat exchanger is obtained; according to the actual operating state data and theoretical operating state data, Determine if the heat exchanger is dirty. The invention can judge the degree of dirty blockage of the unit heat exchanger based on historical data, improves the judgment effect and detection speed, and solves the problems of excessive algorithm error and insufficient stability due to the small number of monitored operating parameters, and improves the efficiency of the heat exchanger. The accuracy of dirty blockage determination can also summarize the development trend through historical operation data and real-time operation data, so as to accurately predict the future dirty blockage of heat exchangers.
Owner:GREE ELECTRIC APPLIANCES INC

Ontology-based medical dispute case public opinion early warning level prediction method

The invention discloses an ontology-based medical dispute case public opinion early warning level prediction method, which comprises the steps of firstly constructing an ontology of a medical disputecase, and then predicting a public opinion early warning level, and the public opinion early warning level prediction comprises the following steps: firstly training a prediction model of the public opinion early warning level by using a word coding algorithm; training a prediction model of the public opinion early warning level by using a sentence coding algorithm; and finally, case element allocation weights in the ontology structure are combined with the word codes and the sentence codes to predict the public opinion early warning level. The method has the advantages that more time can be bought for a court to process public opinions, the efficiency of workers is improved, the negative influence of network public opinion crisis is eliminated, and judicial credibility is improved; constructing a medical dispute case ontology by using ontology knowledge, and semantizing case elements by using an ontology reasoning method; a machine learning algorithm is combined with an ontology structure to form a prediction model of a medical dispute case public opinion early warning level.
Owner:CAPITAL NORMAL UNIVERSITY

A fault prediction method and device for a switch point machine

The invention provides a method and device for predicting fault of a turnout switch machine. The method comprises the following steps: acquiring action current data of a turnout switch machine and taking the current data as a prediction set; extracting current characteristic values of each current data in the prediction set; respectively carrying out decision and classification on the current characteristic value of each current data in the prediction set by adopting the decision tree of each working stage of the turnout switch machine to obtain a classification result of whether each currentdata in the prediction set is in fault or not in each working stage of the turnout switch machine, determining an abnormal current characteristic value when a certain current data in the prediction set is in a fault in any working stage of the turnout switch machine to obtain a fault prediction result. The decision tree of each working stage of the turnout switch machine is pre-established based on the obtained turnout switch machine action current data sample of each working stage, a characteristic value set of the current of the turnout switch machine in each working stage and a pre-established fault characteristic set of the turnout switch machine. The method and device for predicting fault of the turnout switch machine can realize the fault prediction function of the turnout switch machine.
Owner:广西交控智维科技发展有限公司
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