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Failure recognition method and system based on neural network self-learning

ActiveCN103914735ASpeed ​​up fault identificationAccelerateBiological neural network modelsReal time acquisitionMonitoring data
The invention discloses a failure recognition method and system based on neural network self-learning. The method comprises the steps that (1), various set monitoring quantities of track traffic equipment are monitored and collected, and the collected monitoring data are converted into sample data applicable to training the neural network; (2), the sample data are classified according to the types of failures, and a sample data set corresponding to each type of failure is obtained; (3), one neural network is designed for each type of failure, then the sample data sets of the failures are used for training, and a recognition model of each type of failure is obtained; (4), the recognition models of all the types of failures are fused to be one neutral network, and failure recognition is carried out on the monitoring data collected in real time. The method can calmly cope with complex equipment failures and train operation accidents.
Owner:BEIJING TAILEDE INFORMATION TECH

Funnel type data gathering, analyzing and pushing system and method for online public opinion

InactiveCN104408157AImplement topic tracking analysisRealize network public opinion monitoringData processing applicationsWeb data indexingProcess moduleThe Internet
The invention discloses a funnel type data gathering, analyzing and pushing system and method for online public opinion. The funnel type data gathering, analyzing and pushing system comprises an online public opinion gathering module, an online public opinion processing module and an online public opinion publishing module, and the modules comprise a directed precise gathering sub-module, a non-directive gathering sub-module, a hot spot and sensitive topic identifying sub-module, a topic tracking sub-module, an automatic abstracting sub-module, a comprehensive analysis sub-module, a public opinion pre-warning sub-module and a multi-dimensional public opinion information display sub-module. The funnel type data gathering, analyzing and pushing method for the online public opinion uses a special public opinion funnel algorithm and uses the lexicons of three types of keywords of related to me, public opinion and positive and negative aspects to analyze, judge and classify the gathered data and warn early to grasp the latent change rule. The funnel type data gathering, analyzing and pushing system and method for the online public opinion reduce the manual public opinion event polling burden, duly and precisely grasp the development trend of the public opinion event, form the latest, hottest and sensitive topics in the recent period on the Internet, and detect the public opinion message what the user is concerned about and give an early warning in the first time.
Owner:SICHUAN ESLITE ELECTRONICS COMMERCE CO LTD

Network risk monitoring method and system for substation

The invention relates to the substation management control field, and discloses a network risk monitoring method and system for a substation. The network risk monitoring method for a substation includes the steps: according to the operating information of special equipment, general hardware and business application, constructing an operation information model; acquiring the monitoring data which includes operation, performance, alarm and logs of network equipment, business system operation alarm information, and network data record of a station control layer and a data network switch; according to a strategy, performing network safety risk induction, and performing comprehensive analysis on the alarm information from different sources to form intelligent alarm and generate abnormal information and record; uploading the abnormal information and record, and the monitoring data to a main station through an IEC61850-MMS interface; and receiving a control command of the main station, starting a substation hard node switch, and performing corresponding processing on the substation network. The operation information model based on the substation monitoring system can more quickly find the fault, can trace the generation source of the fault, can locate the area of effect of the fault, and can predict the propagating trend of the fault.
Owner:珠海市鸿瑞信息技术股份有限公司

Method for rapidly selecting and displaying interested blood vessel in magnetic resonance blood vessel image

The invention discloses a method for rapidly selecting and displaying an interested blood vessel in a magnetic resonance blood vessel image. The method comprises the following steps that data are read and displayed, and data of an original image are loaded and the original image is displayed on a terminal; users interact with each other, a starting point is selected in interested areas of the blood vessel selected from the original image, and the growth direction of the blood vessel is determined; the blood vessel is tracked, orientation area growth is carried out from the starting point in the growth direction of the blood vessel to obtain part of the intersected blood vessel areas until all the intersected blood vessel areas are obtained; the selection result is displayed, all the areas of the interested blood vessel are displayed in a three-dimensional rebuilding process. Through the method for rapidly selecting and displaying the interested blood vessel in the magnetic resonance blood vessel image, the interested blood vessel in the magnetic resonance blood vessel image can be rapidly, stably and practically selected.
Owner:EAST CHINA NORMAL UNIVERSITY

Network sensitive information-oriented screenshot discovery and locking callback method

The invention discloses a network sensitive information-oriented screenshot discovery and locking callback method which comprises the steps of: acquiring webpage data of a website to be monitored; normally treating the webpage data, extracting a webpage title and a link on the basis of a regular expression, matching sensitive information on the basis of the webpage title and the link; carrying out outer page and inner page screenshot on the sensitive information; carrying out locking callback on the sensitive information for preventing resurgence; and storing and inquiring a sensitive information screenshot result. For the sensitive information on a network, by adopting the network sensitive information-oriented screenshot discovery and locking callback method, the sensitive information can be found within shortest time and is subjected to screenshot storage, the webpage is prevented from being updated or deleted in future, file discovery and immediate disposition of relative disposing mechanisms are facilitated, and a website for frequently issuing the sensitive information is disposed. In addition, the method provided by the invention can effectively meet the monitoring and disposing demand of the sensitive information of a network, and is suitable for implementation of a network public opinion analysis system.
Owner:NAT UNIV OF DEFENSE TECH

Stepping inquiry-response locating system for flight data recorder

The invention discloses a stepping inquiry-response locating system for a flight data recorder. The stepping inquiry-response locating system comprises a flight data recorder (FDR) airborne triones locating device and a ground mobile searching and locating device, wherein the FDR airborne triones locating device is installed in the flight data recorder; and the ground mobile searching and locating device is installed in a mobile ground station for search and rescue. The stepping inquiry-response locating system for the flight data recorder adopts a triones navigating and locating system, an inquiry-response mode and a multi-point locating system, and transmits a radio data packet which contains an identification code and position coordinates and has a designated response signal frequency,a searching and locating method comprises a mutual corroborating mode of the position coordinates of a cooperative and related locating algorithm, so research and rescue personnel can quickly find the flight data recorder of a wrecked airplane according to the received triones coordinate information and designated frequency, accordingly, the purpose of quickly finding an object is realized, a great deal of manpower, resources, financial resources and time can be saved, and the rescue efficiency is improved.
Owner:CIVIL AVIATION UNIV OF CHINA

Method for discovering sensitive data in text big data

The invention discloses a method for discovering sensitive data in text big data. The method comprises the following steps that a sensitive word information base is established; a sensitive word retrieval tree is established for all sensitive words in the sensitive word information base; sensitive word retrieval discover is carried out on a pretreated text with a character streaming through the retrieval tree, and the occurrence frequency of each sensitive word is counted; the sensitivity of a to-be-retrieved text is calculated by using the occurrence frequency of the sensitive words, documentclass, and weight rank of the sensitive words; the sensitivity of the to-be-retrieved text is compared with a preset threshold, and a retrieval text of which a sensitivity value exceeds the thresholdis determined to be a sensitive text. According to the method for discovering the sensitive data in the text big data, a method to quickly discover sensitive information of normalized and non-normalized description for massive heterogeneous texts is provided, the mode of the quick and accurate search combined with the fuzzy retrieval of the sensitive information achieves the quick discover of thepotential sensitive information.
Owner:NO 30 INST OF CHINA ELECTRONIC TECH GRP CORP
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