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156 results about "Joint analysis" patented technology

The Joint Intelligence Operations Center Europe (JIOCEUR) Analytic Center (JAC), formerly known as the Joint Analysis Center, is a Joint Intelligence Center serving as a military intelligence analysis centre for the United States European Command located at RAF Molesworth, Cambridgeshire, United Kingdom and managed by the Defense Intelligence Agency.The area of responsibility includes over 50 ...

Method for obtaining resident travel characteristic parameter based on mobile phone positioning data

The invention discloses a method for obtaining a resident travel characteristic parameter based on mobile phone positioning data. The method comprises the following steps of: (1) collecting mobile phone positioning data; (2) filtering the mobile phone positioning data, matching the mobile phone positioning data to traffic zones, and obtaining the matched mobile phone positioning data; (3) using users as units, ordering the matched mobile phone positioning data in one day by time, merging the continuous data in the same one traffic zone into one piece, and obtaining mobile phone positioning pretreatment data; (4) according to the number of emerged pieces and influence duration, judging residing points, restoring a travel path between two residing points, and obtaining the travel distance and the travel speed, and then obtaining a travel log table of all users; (5) on the basis of the matched mobile phone positioning data, statistically obtaining a place of residence and workplace result table; and (6) and conjointly analyzing the travel log table and the place of residence and workplace result table, and obtaining resident travel characteristic parameters. The method has the characteristics of low cost, large sample quantity, high precision and high time validity.
Owner:北京交通发展研究院

Student state determination method, device and system

The invention provides a student state determination method, device and system. The method is applied to an online network teaching scene. A student side terminal of a network is equipped with a modality acquisition apparatus. The modality acquisition apparatus comprises a camera, an eye tracker and a body feeling instrument. The method comprises the following steps: obtaining data collected by the modality acquisition apparatus through the student side terminal, the data comprising expression data collected by the camera, eye data collected by the eye tracker and body state data collected by the body feeling instrument; based on image recognition technology, carrying out analysis processing on the expression data and the eye data to obtain emotion state information and fatigue and concentration degree state information of each student; and carrying out joint analysis on the body state data, the emotion state information and the fatigue and concentration degree state information to obtain state information of each student, wherein the state information comprises a high attention state, a low attention state and a dependence attention state. The student state determination method, device and system help teachers to know the learning state of each student clearly in network teaching.
Owner:CAPITAL NORMAL UNIVERSITY

Big data security analysis system based on massive network monitoring data

The invention discloses a big data security analysis system based on massive network monitoring data. The system includes a data traffic monitoring module, a deep packet detection module, a data jointanalysis module, an anomaly detection module and a security evaluation module, wherein the data traffic monitoring module is used to monitor data traffic in real time, analyze applications, perform lossless collection on various system traffic data, and transmit the data to other modules; the deep packet detection module is used to judge the service types and application types by deeply reconstituting and analyzing the payload content of a seventh-layer packet and matching service characteristics, and performs analysis to obtain different application types; the data joint analysis module is used to perform data aggregation and study the state and association analysis to further remove redundant information in original data; the anomaly detection module is used to detect a data analysis result and judge whether the data is abnormal; and the security evaluation module is used to obtain a data evaluation result by combining the network situation based on the analysis and detection of other modules. According to the system, the real-time monitoring of network data and corresponding data security analysis can be implemented, and the data security and reliability can be improved.
Owner:国网吉林省电力有限公司信息通信公司 +1

Audio and video conjoint analysis-based fighting detection system and detection method thereof

The invention discloses an audio and video conjoint analysis-based fighting detection system and an audio and video conjoint analysis-based fighting detection method thereof. The audio and video conjoint analysis-based fighting detection system comprises a video acquisition module, an audio acquisition module, an algorithm detection module and a management module, wherein each of the video acquisition module and the audio acquisition module adopts a camera, an acquisition card and a computer; the video acquisition module acquires an analogue signal of the camera to a memory of the computer by the acquisition card; the audio acquisition module acquires the analogue signal of the camera to the memory of the computer by the acquisition card; and the algorithm detection module judges the fighting of persons in a target area, judges synchronous audio and video, detects, identifies and positions the chaotic fighting of the persons in the target area, and outputs results to the management module. In the system and the method, the behaviors of the persons in a monitored scene are analyzed, identified and positioned to accurately diagnose the abnormal behaviors such as gathering, fighting and the like of the persons appearing in a video image and give an alarm.
Owner:上海弘视通信技术有限公司

Method for recognizing type of vibration source of tunnel, and vibration source positioning method

The invention discloses a method for recognizing the type of a vibration source of a tunnel, and a vibration source positioning method. The method for recognizing the type of the vibration source comprises the following steps: setting distance setting monitoring regions in the tunnel at intervals, wherein four corners of each monitoring region are respectively provided with a triaxial vibration sensor; collecting X-axis, Y-axis and Z-axis acceleration analog quantities of the triaxial vibration sensor in real time through the triaxial vibration sensor, and converting the acceleration analog quantities into digital quantities; carrying out the calculation and analysis of the monitoring data of the triaxial vibration sensor: building a vibration triggering algorithm; filtering background noises, judging the focus direction through longitudinal and lateral stationing combined analysis, and measuring the distance of a focus through a difference point of transverse and longitudinal wave propagation; and finally achieving an effect of precisely determining the focus. The method provides strong technological guarantee for the early warning and quick response of power safety production.
Owner:康威通信技术股份有限公司

Offshore wind turbine fatigue analysis system based on integrated coupling model

ActiveCN107346357AGlobal Structural ResponseRational structure responseDesign optimisation/simulationSpecial data processing applicationsFatigue loadingCoupling
The invention discloses an offshore wind turbine fatigue analysis system based on an integrated coupling model and belongs to the technical field of long-term fatigue coupling analysis of an integral structure of an offshore wind turbine. The fatigue analysis system comprises a design wind speed simulation module, an integrated coupling model establishing module, a coupled power reaction analysis module, a fatigue condition setting module, a fatigue loading file generation and integrated coupling fatigue analysis module and other computation modules. The fatigue analysis method comprises the following steps: establishing an integrated coupling model of a rotor-control-cabin-tower-foundation structure; calling FAST by utilizing a FAST-SACS joint analysis interface, and developing coupled power reaction analysis; reading a coupling analysis destination file by the joint analysis interface, generating an input file and a computing configuration file needed by fatigue analysis, and outputting the files to a designated directory; establishing a simplified integrated model of a mass point-tower-foundation structure, and developing offshore wind turbine integrated structure fatigue analysis under the wind flow combined action based on the generated input file and computing configuration file; and finally, obtaining long-term fatigue accumulation of the structure based on a wind turbine fatigue accumulation criterion.
Owner:DALIAN UNIV OF TECH

Road side parking management method based on multi-camera image combination processing

The present invention relates to a road side parking management method based on multi-camera image combination processing. The method comprises: a camera set module obtains image information of a target vehicle and stores the image information; a first-class image processing module tracks a target vehicle track to obtain the position coordinates and position of the image information, extracts the position information of the target vehicle in a panoramic image and maps the position information to the corresponding parking stall camera, and obtains the corresponding parking stall camera image information; the image of the target vehicle in the panoramic image to perform feature comparison with the image in the corresponding parking stall camera to further obtain the in/out information of the target vehicle; and a second-class image processing module performs secondary processing according to the confidence coefficient of the first-time processing to improve the analysis accuracy. The road side parking management method based on the multi-camera image combination processing can improve the license plate identification accuracy, the accuracy of in/out motion capture of the target vehicle and the calculation efficiency through combination analysis of the panorama camera and the parking stall cameras and can perform the whole course image analysis of the parking event so as to realize parking course full coverage and effective backtrack of the parking event.
Owner:INTELLIGENT INTER CONNECTION TECH CO LTD

Fault arc detection method based on high frequency characteristic and apparatus thereof

The invention provides a fault arc detection method based on a high frequency characteristic and an apparatus thereof. The apparatus comprises a voltage zero-crossing detection unit, a current waveform acquisition unit, a current filtering shaping unit, a detection analysis unit, a liquid crystal display unit, an acousto-optic warning unit, a control unit and a communication unit. The detection analysis unit collects a pulse signal output by the current filtering shaping unit and original current data output by the current waveform acquisition unit through high speed I / O and A / D respectively. A pulse density and a current time domain characteristic are combined and used to analyze and determine a fault arc. When the fault arc is detected, an acousto-optic alarm and trip signal is emitted. By using the detection method, the fault arcs of various kinds of loads of a subordinate branch can be identified and are not influenced by superior or other parallel branch fault arcs. Sensitivity is high and a false alarm rate is low. In addition, according to different applications, software and hardware parameters are only configured and a circuit structure does not need to be adjusted; the method and the apparatus can adapt to alternating current / direct current arc detection and a plurality of standards, and versatility is good.
Owner:北京芯同汇科技有限公司

Power cable and connector nondestructive detecting system and method based on X-ray and ultrasonic combined detection

The invention discloses a power cable and connector nondestructive detecting system and method based on X-ray and ultrasonic combined detection. The system comprises an ultrasonic detection subsystem,an X-ray detection subsystem and a diagnosis system, wherein the ultrasonic detection subsystem detects casings of a power cable and a connector through an ultrasonic probe, accomplishes the ultrasonic detection of the outer ring parts of the power cable and connector, and determines a shooting angle, shooting position and shooting distance of the X-ray detection subsystem during detection; the X-ray detection subsystem respectively accomplishes X-ray detection of the outer ring parts and the inner ring parts of the cable and connector at twice according to set parameters provided by the ultrasonic subsystem; the diagnosis system performs combined analysis on the state of the cable and connector according to two detection results output by the ultrasonic detection subsystem and the X-raydetection subsystem. The system takes ultrasonic detection and X-ray detection combined diagnosis as a tool, obtains more accurate detection results of the internal state of the cable and connector, effectively reduces failures and accidents caused by internal defects of the cable and connector, and guarantees the safe and reliable operation of the cable and connector.
Owner:ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER +1
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