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42results about How to "Add data source" patented technology

Video abstract generating method based on GIS

The invention provides a video abstract generating method based on a GIS. The video abstract generating method comprises the first step of acquiring the geographical coordinates of targets in a surveillance video, the second step of enabling the pixel coordinates of the targets in any frame of the surveillance video to correspond to the geographical coordinates in a one-to-one mode, the third step of carrying out edge detecting on the targets in the surveillance video frame by frame to obtain the pixel coordinates of edge features of the targets, the fourth step of recording the pixel coordinates, the geographical coordinates, the shooting time and the frame numbers to a data table, and the fifth step of overlapping the frames one by one to form a vector stream data table changing along with time, converting the original surveillance video into the coordinate value set of the pixel coordinates, the longitude and latitude and the shooting time and storing the coordinate value set into the GIS to form a continuous video abstract of the target object. By means of the video abstract generating method, the data size is effectively reduced, the processing efficiency is improved, the GIS data sources are effectively expanded, and the dynamism and real-time performance of the GIS are promoted.
Owner:SHENZHEN INST OF ADVANCED TECH

Method, device and system for improving precision of comprehensive flight path monitoring data of airport apron

The invention provides a method, a device and a system for improving the precision of comprehensive flight path monitoring data of an airport apron, and the method comprises the steps: obtaining the pixel coordinates of an airplane in an airport apron region in a video image based on intelligent video analysis; determining a conversion relation between the pixel coordinates and the latitude and longitude coordinates; converting pixel coordinates of the airplane in the video image into latitude and longitude coordinates used by a flight path monitoring system; and accessing the latitude and longitude coordinates into the existing flight path data for data fusion to obtain comprehensive flight path data, and monitoring the airplane in the airport apron in real time based on the comprehensive flight path data. According to the invention, the pixel coordinates are efficiently and accurately converted into the latitude and longitude coordinates by adopting an approximate plane mapping and double-sided mapping method, the pixel coordinates of an airplane in a video image are accurately converted into the latitude and longitude coordinates used by a flight path monitoring system, and the precision of latitude and longitude coordinate data is improved; and the precision of the comprehensive track data in the airport apron is effectively improved.
Owner:THE SECOND RES INST OF CIVIL AVIATION ADMINISTRATION OF CHINA

Electromagnetic frequency spectrum monitoring system and method based on wireless sensor network

The invention provides an electromagnetic frequency spectrum monitoring system and method based on the wireless sensor network, and aims at solving the problem of low accuracy in monitoring of the complex electromagnetic frequency spectrum space in the prior art. The electromagnetic frequency spectrum monitoring system comprises a frequency spectrum management center and N gateway centers in wireless connection, each gateway node is wirelessly connected with one sensing node at least, and each gateway / sensing node is integrated with a frequency spectrum monitoring module. The monitoring methodcomprises that the frequency spectrum management center issues a frequency spectrum monitoring task; each gateway node forwards the initial frequency and termination frequency; the frequency spectrummonitoring module integrated in the gateway node or the frequency spectrum monitoring module integrated in the sensing node connected to the gateway node obtains a frequency spectrum monitoring result and uploads the result; the gateway node forwards the frequency spectrum monitoring result to the frequency spectrum management center; and the frequency spectrum management center draws a frequencyspectrum graph. The frequency spectrum management center can draw the electromagnetic frequency spectrum monitored by the gateway node as well as the electromagnetic frequency spectrum monitored by the sensing node.
Owner:XIDIAN UNIV +1

Human-core fully mechanized coal mining face HCPS man-machine co-fusion intelligent production system

PendingCN114298530AGive full play to knowledge and experienceGive full play to subjectivityOffice automationResourcesMan machineProcess engineering
The invention relates to the technical field of intelligent mining of fully mechanized coal mining faces, in particular to a fully mechanized coal mining face HCPS man-machine co-fusion intelligent production system with a man-made core. Comprising remote cooperative workers, a VR information system, an AR information system and an intelligent mining physical system, the remote cooperative workers comprise centralized control center operators and production field intelligent inspection personnel, and the centralized control center operators are located in a ground centralized control center and master the global operation condition of a working face through multi-path signal monitoring; the VR information system is a constructed high-simulation virtual mirror image of the fully mechanized coal mining face, is integrated in a ground centralized control center, and provides global three-dimensional visual state information of the fully mechanized coal mining face production system for operators of the centralized control center; the AR information system is a constructed fully mechanized coal mining face virtual-real fusion channel, and provides fully mechanized coal mining face production system localization virtual-real fusion operation and maintenance information for production field intelligent inspection personnel; the intelligent mining physical system comprises intelligent fully mechanized coal mining face equipment.
Owner:TAIYUAN UNIV OF TECH

Rolling bearing fault intelligent diagnosis method and system

The invention provides a rolling bearing fault intelligent diagnosis method and a system. The rolling bearing fault intelligent diagnosis method comprises the following steps that a test signal and aan actual condition signal of bearing vibration are collected; 0-1 standardization processing is carried out on the test signal and the actual condition signal of bearing vibration, and a training setand a test set are divided respectively; an LSTM-softmax network is constructed, and the network is trained by using the test signal to obtain a source network suitable for a test; a dynamic time warping (DTW) distance between the test signal and the actual condition signal is calculated; and a target network is constructed on the basis of migrating all or part of the structure and parameters ofthe source network according to the DTW value, a new network is trained by using the actual condition signal, and finally the target network suitable for an actual working condition is obtained. According to the rolling bearing fault intelligent diagnosis method, the features of the vibration signals can be accurately extracted, and the problem of inaccurate feature extraction due to manual feature selection is avoided; and the problems that full-life-cycle data cannot be obtained under the actual working conditions, available data are few, and an effective diagnosis model is difficult to establish are solved, and the accuracy of fault diagnosis in actual production is improved.
Owner:JIANGSU UNIV

An electronic map construction method and device and an electronic map implementation method and device

The invention discloses an electronic map construction method and device and an electronic map implementation method and device. The electronic map construction method comprises the following steps: acquiring basic data for constructing the electronic map, wherein the basic data comprises at least one of the following data: flight data, environment data and map data; generating a topological map structure of the electronic map according to the basic data, wherein the topological map structure is composed of topological nodes and edges between the topological nodes, topological geometric primitives of the topological map structure are geometric structures formed by points and edges of a preset number, and the topological geometric primitives amplified by N times can be completely filled with M topological geometric primitives of original sizes; M and N are positive integers greater than 2. The invention has the beneficial effects that the data source of the constructed map can be expanded, the topological nodes and edges in the topological map contain reachable information to the minimum, the occupied storage space is smaller, the proposed topological map structure is convenient to update, the computing resources are saved and the efficiency is improved in navigation and other scenes.
Owner:BEIJING SANKUAI ONLINE TECH CO LTD

Method, device and system for improving the accuracy of airfield comprehensive track monitoring data

The present invention provides a method, device and system for improving the accuracy of airfield integrated flight track monitoring data. The method includes, based on intelligent video analysis, obtaining the pixel coordinates of aircraft in the airfield area in the video image; determining the pixel coordinates and latitude and longitude Coordinate conversion relationship; convert the pixel coordinates of the aircraft in the video image into the latitude and longitude coordinates used by the track monitoring system; connect the latitude and longitude coordinates to the existing track data for data fusion, and obtain comprehensive track data, based on the integrated track Data, real-time monitoring of aircraft on the apron. The present invention proposes the method of approximate planar mapping and double-sided mapping to realize the efficient and accurate conversion of pixel coordinates to longitude and latitude coordinates, realize the precise conversion of the pixel coordinates of the aircraft in the video image into the longitude and latitude coordinates used by the track monitoring system, and improve the The accuracy of the longitude and latitude coordinate data is improved, and the accuracy of the comprehensive track data in the apron is effectively improved.
Owner:THE SECOND RES INST OF CIVIL AVIATION ADMINISTRATION OF CHINA

Parameter sharing method and system for relay protection setting, terminal and storage medium

The invention relates to a parameter sharing method and system for relay protection setting, a terminal and a storage medium, and belongs to the field of relay protection, and the method comprises the steps: obtaining the current equipment information of the current protected equipment; obtaining multiple pieces of protected equipment information and calculation model numbers corresponding to the protected equipment information from a preset protected equipment library, wherein the calculation model numbers are unique identifiers of current calculation models used for calculating the short-circuit current; according to the current equipment information and the protected equipment information, sequentially calculating and generating a plurality of equipment similarities; according to the maximum value of the equipment similarity, obtaining a calculation model number corresponding to the information of the protected equipment; obtaining a corresponding current calculation model according to the calculation model number; and substituting the current equipment information into the current calculation model to generate the short-circuit current of the current protected equipment. The method has the advantages that the calculated and generated short-circuit current is suitable for being used as the setting value, and the working efficiency is improved.
Owner:上海康达电力安装工程有限公司
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