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133results about How to "Solve the acquisition problem" patented technology

System and method for processing unmanned aerial vehicle polling image

The invention discloses a system and method for processing an unmanned aerial vehicle polling image. The system comprises an unmanned aerial vehicle polling image processing system body which comprises a human-computer interaction module. After the human-computer interaction module obtains a user instruction, a main control panel analyzes the user instruction and transmits the analyzed instruction to a data receiving and transmitting controller, the data receiving and transmitting controller sends a parameter configuration instruction to corresponding peripheral equipment according to the instruction and transmits an instruction execution result back to the main control panel, and the main control panel processes the execution result of the parameter configuration instruction and then sends processed information to the human-computer interaction module so that the information can be displayed to a user. The main control panel is respectively communicated with a secondary controller, a power supply module, a wireless communication module, a data storage module, a locating module, a distance measuring meter and a height gauge. The system and the method improve the automation degree and the informationization degree of polling image processing, improve the efficiency of searching for and processing the polling result, and lower the cost of processing the polling result.
Owner:STATE GRID INTELLIGENCE TECH CO LTD

Method and system for automatically obtaining updating of video

The application discloses a method and a system for automatically obtaining updating of a video. The method comprises the following steps: recording identity information of a logged user and monitoring subscription operation of the user in a page; if monitoring that the user carries out the subscription operation on a video, generating corresponding instruction information according to the subscription operation; obtaining identification information of the subscribed video according to the instruction information, establishing relevance of the identity information of the user and the identification information of the video and monitoring updating states of the video in a preset monitoring list containing all the videos; and if monitoring that the video having the established relevance with the identity information of the user in the monitoring list is updated, generating an updating prompt message, sending the generated updating prompt message to a message queue corresponding to the user and pushing. By utilizing the method and the system, the problem that an updated video file can not be obtained timely is solved.
Owner:1VERGE INTERNET TECH BEIJING

A remote outdoor monitoring apparatus and automatic monitoring control method

The invention discloses a remote outdoor monitoring apparatus, which can clearly and accurately acquire target point video information and three-dimensional coordinate parameter by setting a cloud mirror decoding card, a lens stepping motor driver and a PTZ stepper motor driver, wherein, the cloud mirror decoding card is respectively electrically connected to a camera, an IP video processing module, a PTZ stepper motor driver, and a lens stepping motor driver. The invention also discloses an automatic monitoring control method, which includes setting the presetting bit of each target monitoring point, connecting these presetting bits in series into a monitoring running track, the lens automatically scanning along the monitoring operation track, discovering that target monitoring points appear abnormity instance, the lens lock locking the target, centering and magnifying the target monitoring point images for performing image recognition once more, and automatically triggering the alarm. The apparatus can clearly and accurately obtain the abnormity instance of the target points, to avoid false alarm and improve warning accuracy.
Owner:重庆市海普软件产业有限公司

Acquiring method for dynamic random optimal power flow of power system for wind-containing power field

The invention discloses an acquiring method for a dynamic random optimal power flow of a power system for a wind-containing power field. According to the acquiring method, the dynamic random optimal power flow of the power system under the influence of the randomness of wind speed and load as well as temporal and spatial correlation is realized. The acquiring method comprises the following steps: firstly, establishing a dynamic probability model of wind speed, and analyzing the temporal and spatial correlation of the wind speed; secondly, calculating by adopting a deterministic dynamic optimal power flow based on an original dual and decoupling interior point method to obtain an optimal dispatching scheme; secondly, under the guidance of the dispatching scheme, solving the dynamic random optimal power flow considering the correlation based on a cumulants method to obtain probability distribution of a state variable, and adjusting the upper and lower bound of chance constraint according to the probability distribution; finally, performing iterative computation to solve a group of optimal dispatching schemes meeting all the chance constraints. According to the acquiring method disclosed by the invention, the optimal power flow of the power system under the random influence of an input variable can be effectively processed. The acquiring method has the advantages of accurate result and convenience for realization. The obtained result has certain guiding significance for dispatching persons.
Owner:HOHAI UNIV

Real-time vehicle navigation method based on wireless data network

The invention discloses a real-time vehicle navigation method based on a wireless data network. In the method, (1) destination information is input into a vehicle-mounted end by a user, positioning information is acquired by a GPS (Global Position System) positioning module and sent to the vehicle-mounted end, and the positioning information, the destination information and a vehicle identification code are sent to a server end through the wireless network by the vehicle-mounted end; (2) the sever end receives the information sent by the vehicle-mounted end, respectively extracts the positioning information, the destination information and the identification code information, works out a navigation path according to GIS (Geographic Information System) data, a digital map and traffic condition information, and marks a vehicle position on the path in real time and finally stores the vehicle position into a database at the server end; and (3) the positioning information, the map and the path information of the vehicle can be checked from a screen at the vehicle-mounted end through web access or use of special software by the vehicle-mounted end and automatic identification by the server end, thereby the real-time navigation of the vehicle can be realized. The invention can acquire real-time traffic conditions, can update GIS and a digital map at real time, thereby realizing real-time navigation and improving vehicle running efficiency.
Owner:TONGJI UNIV

Emergency event emergency commanding and dispatching system and information push method thereof

The invention relates to the technical field of comprehensive emergency management, in particular to an emergency event emergency commanding and dispatching system and an information push method of the emergency event emergency commanding and dispatching system. The system page is divided into three parts, wherein the three parts are an information receiving part, a large-screen pre-display part and a large-screen display part. The information receiving part and the large-screen pre-display part belong to offline operations and are not projected to a large screen directly; the large-screen display part is projected to the large screen. The actual display region of the large screen is controllable. The three parts are associated and matched to conduct information display, and the style, tone and arrangement are unified; obtaining of high-quality information in the commanding and dispatching process is solved, a decision maker can receive the valued information timely and conveniently and make a right judgment on dispatching. The emergency event emergency commanding and dispatching system and the information push method solve the problems that large screen information display is miscellaneous, not attractive in arrangement, free of quality guarantee and are suitable for the emergency event emergency commanding and dispatching system based on information push.
Owner:CLOUD COMPUTING CENT CHINESE ACADEMY OF SCI

Intelligent evacuation indicating system with positioning function and evacuation method

ActiveCN104083831AFormulate scienceSolve the problem of obtaining location informationBuilding rescueInformation processingRemote control
The invention relates to an intelligent evacuation indicating system with the positioning function and an evacuation method. The system is composed of an escape RFID tag, positioning evacuation indicating nodes, an information processing transmission terminal and a monitoring display terminal. An implementing hardware platform is set up for acquiring position information, evacuation indicating node information and the like of trapped persons in the escaping process, a monitoring center can know the position information of trapped persons in a building in the escaping process in real time, the display direction of the evacuation indicating nodes can be comprehensively controlled according to the positions of persons, the fire source position and the like, the persons can be distributed and evacuated in assembly occupancies, and meanwhile, decision supporting is provided for rescue activities. The system integrates the evacuation indication function and the positioning function, and project cost is greatly saved. The system can also achieve remote control, meets the actual fire control requirement and is higher in practicability degree. The monitoring range can be adjusted by changing the wireless signal power. The system is more flexible to use.
Owner:SHENYANG FIRE RES INST OF MEM

Driving state recognition method based on approximate entropy template matching

The invention discloses a driving state recognition method based on approximate entropy template matching, and the method comprises the steps: 1, sample library building, wherein samples of one type in the sample library are a plurality of steering wheel turning angle signals in a normal driving state, and samples of the other type in the sample library are a plurality of steering wheel turning angle signals in a dangerous driving state; 2, road information segmentation based on the approximate entropy template matching: carrying out the call of a signal correction module based on the approximate entropy template matching to correct the steering wheel turning angle signals in the library sample, wherein the correction process of any one steering wheel turning angle signal is as follows: carrying out the EMD (Empirical Mode Decomposition), the effectiveness recognition of an intrinsic mode function component, and signal reconstruction; 3, feature extraction; 4, two-class model building and training; 4, driving state information collection and synchronous classification. The method is simple in steps, is reasonable in design, is easy and convenient to implement, is good in use effect, can accurately recognize the driving state of a driver simply and conveniently, and is high in recognition precision.
Owner:陕西智慧路衡电子科技有限公司

Operating range estimation method of infrared imaging system under complex background condition

The present invention relates to a method for estimating an infrared imaging system action distance under a complex background condition. Firstly, an infrared imaging system action distance estimating model which is effective towards the complex background condition is established and comprises an action distance equation and an action distance resolving method; secondly, an auxiliary imaging system is used for obtaining an infrared image with complex background to be studied; thirdly, the auxiliary imaging system is scaled for confirming the function of the system infrared radiation lightness related to imaging gray scale; fourthly, the infrared radiation lightness under the complex background at the entrance pupil of the auxiliary imaging system is determined; fifthly, the infrared radiation lightness transmitted for zero distance under the complex background is determined; sixthly, target infrared radiation lightness and target effective area are determined; seventhly, the curve of the relation between infrared radiation transmissivity and imaging distance is worked out; eighthly, related data is substituted in the action distance estimating model established by the present invention, and the calculation of the action distance of a target imaging system towards the target under the complex background is finished finally.
Owner:BEIHANG UNIV

Uplink-CSI-based downlink channel reconstruction method for FDD system

The invention discloses an uplink-channel-state-information-(CSI)-based downlink channel reconstruction method for a frequency division duplex (FDD) system. A base station estimates an uplink CSI by using an uplink detection signal, wherein the uplink CSI includes a gain / gains, a direction angle / direction angles, and a delay / delays of one or more propagation paths; a downlink sparse pilot frequency is sent or a downlink pilot frequency is sent in the estimated one or more propagation path directions by using uplink and downlink angle reciprocity; user equipment carries out estimation again byusing the downlink pilot frequency and feeds back a gain of each propagation path; and then the base station reestablishes a downlink channel by using the direction angle and delay, estimated by the uplink, of each propagation path as well as the gain, re-estimated and fed back by the user equipment, of each propagation path. With the downlink CSI reconstruction method for the FDD system, a problem of obtaining downlink CSI of a large-scale multi-input multi-output system of the FDD is solved.
Owner:SOUTHEAST UNIV

Ephemeris-based low-orbit broadband satellite communication terminal antenna direction acquisition method

ActiveCN109495156ALess broadcast dataOccupies less frequency band resourcesRadio transmissionConstellationBroadband
The invention discloses an ephemeris-based low-orbit broadband satellite communication terminal antenna direction acquisition method. The method comprises an ephemeris acquisition method, a satelliteselection method and a direction generation method. In the ephemeris acquisition method, a communication terminal receives a simplified and compressed single-satellite ephemeris broadcast by a singlesatellite through a broadcast receiving antenna; and the constellation ephemeris of the whole constellation is deduced according to the received single-satellite ephemeris. In the satellite selectionmethod, a target satellite needing to be aligned for initial access is selected according to the constellation ephemeris and the position of the communication terminal. In the direction generation method, an antenna direction of the communication terminal is calculated according to the target satellite. The ephemeris acquisition method, a satellite selecting strategy and a tracking method can be applied in a scene under the condition that the frequency resources are limited, the receive gain of a terminal antenna is extremely low, and the satellite needs to be continuously switched; and the problem of acquisition of basic satellite position information during the initial access of low-orbit broadband satellite communication is solved.
Owner:航天科工空间工程发展有限公司

Intelligent hydraulic power plant patrol system and method

The invention discloses an intelligent hydraulic power plant patrol system and method. The intelligent hydraulic power plant patrol system comprises primary equipment and secondary equipment of a hydraulic power plant, a mobile terminal and a patrol information management system. The intelligent hydraulic power plant patrol method comprises the following steps: recognizing, analyzing and recordingpatrol results of a patrol route and patrol target equipment by using a patrol APP (Application), recording the patrol route, and providing intelligent alarming reminding for situations such as equipment inspection omission and false detection. Therefore, patrol on most hydraulic power plant equipment can be covered with low cost and high intelligence levels, and the technical problems that the patrol process is low in authenticity, economy, convenience and intelligent level can be solved; functions of the system and the method are designed and developed on the basis of application software,built-in programs of conventional device are modified, and an intelligent patrol system is established with relatively low cost; by calling different program modules by application programs, real-timedynamic recognition and acquisition on patrol information of different measuring and control devices can be achieved, and the intelligence degree of the patrol system can be improved.
Owner:NANJING NARI GROUP CORP +1

Automatic charging system and charging method for overhead transmission line inspection robot

The invention discloses an automatic charging system and charging method for an overhead transmission line inspection robot. The system comprises a charging device installed at the robot body end and a charging device which is connected with the charging device installed at the robot body end in a wireless communication mode and installed at the line pole tower end; the charging device installed at the robot body end monitors information of a battery in real time and transmits the information to a robot control system, the control system sends a control command to enable the charging device installed at the robot body end and the charging device installed at the line pole tower end to be aligned and positioned when power supply of the battery is insufficient, and then the charging device installed at the line pole tower end automatically charges the charging device installed at the robot body end. According to the automatic charging system and charging method, the inspection robot is charged through solar energy in a wireless mode, artificial participation is not needed in the whole process, and automatic running and automatic charging are achieved.
Owner:ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +2

Method, device and system for acquiring contact person numbers

The invention discloses a method and a device for acquiring contact person numbers, which relate to the field of communication, and are used for solving the problem of incapability of acquiring one needed contact person number according to a voice command in the prior art when the telephone numbers of persons with the same names or different telephone numbers of one person are stored in a contact list. The technical scheme of the method in the embodiment includes that the method includes: acquiring voice information inputted by a user; performing voice recognition for the voice information so as to obtain the to-be-acquired name of at least one contact person; if the at least one contact person name corresponds to two telephone numbers, acquiring application condition information corresponding to each telephone number; and acquiring the target number from the at least two telephone numbers. The technical scheme of the method, the device and the system in the embodiment can be applied to a communication system.
Owner:SHANGHAI CHEYIN NETWORK TECH

A remote sensing data storage method and system based on a block chain

The invention provides a remote sensing data storage method and system based on a block chain. The method comprises the following steps: storing remote sensing data as a plurality of remote sensing files based on a collection time point; Performing Hash operation on the plurality of remote sensing files to obtain corresponding Hash values; And storing the associated information of the plurality ofremote sensing files in a block chain network by designing an intelligent contract, the intelligent contract comprising hash values corresponding to the plurality of remote sensing files. According to the storage method and the storage system, the remote sensing data can be prevented from being tampered, the safety of data storage is improved, and the space-time integrated remote sensing data canbe effectively obtained.
Owner:SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI

Aspirating type propulsion test simulation method based on high-temperature pulse wind tunnel

InactiveCN109883646ASolve the acquisition problemSolve the problem of air-breathing propulsion test data acquisitionGas-turbine engine testingAerodynamic testingIncremental testCold test
The invention discloses an aspirating type propulsion test simulation method based on a high-temperature pulse wind tunnel. The aspirating type propulsion test simulation method based on the high-temperature pulse wind tunnel comprises the following steps that (1) an aspirating type propulsion test system is established; (2) an A group cold test is conducted, and test data of non-fuel spouting columns and air incoming flow are measured; (3) a B group cold test is conducted, and the test data of the non-fuel spouting columns and the air incoming flow are measured; (4) a C group cold jet test isconducted, and cold jet test data flown from flue spouting and nitrogen flow are measured; (5) the differences of A, B, and C test data are compared, sprouting influence, burning characteristic and colt and hot performance analyses are completed, and stimulation on aspirating type propulsion is realized. According to the aspirating type propulsion test simulation method based on the high-temperature pulse wind tunnel, through sprouting control of fuel and replacement of test gas, three groups of control test stimulation methods A, B and C are formed, the burning characteristic of the aspirating type propulsion test can be judged, performance incremental test data of cold and hot performances can be obtained, and the aspirating type propulsion test simulation method can further be used forthe fuel sprout disturbance characteristic analysis of the aspirating type propulsion test.
Owner:CHINA ACAD OF AEROSPACE AERODYNAMICS

SAR data block adjustment processing method and system

ActiveCN112017224AHigh degree of automationMeet business production needsImage enhancementImage analysisTerrainRadar
The invention provides an SAR data block adjustment processing method and system. The method comprises the steps of acquiring DEM data of a target area and an SAR original amplitude diagram of the target area; performing SAR image inversion on the target area based on the DEM data and the SAR original amplitude diagram to obtain an SAR analog amplitude diagram; calculating a coordinate conversionparameter between the SAR analog amplitude diagram and the SAR original amplitude diagram based on the SAR analog amplitude diagram; optimizing a lookup table based on the coordinate transformation parameter to obtain a refined lookup table, wherein the lookup table is a data structure representing a mapping relationship of the SAR original amplitude diagram between a radar coordinate system and ageographic coordinate system; and performing block adjustment processing on the target area based on the refined lookup table. According to the method, the problem of obtaining SAR image control points in complex terrain areas in the prior art is solved, the automation degree of SAR image block adjustment is improved, and the business production requirements of large-range SAR image DOM productsare met.
Owner:BEIJING AEROSPACE HONGTU INFORMATION TECH

Report component layout information processing method and apparatus

Embodiments of the present invention provide a report component layout information processing method and apparatus. The method comprises: displaying a graphical interface, wherein the graphical interface comprises a draggable report component and a layout panel for a user to lay out a target report component on the layout panel; creating a xy coordinate system of the m*n matched with the layout panel, wherein m is the number of unit scales occupied by the layout panel on the x-axis, n is the number of unit scales occupied by the layout panel on the y-axis, and m and n are natural numbers; and in response to the operation of submitting the report component layout by the user, obtaining the layout information between the target report components based on the xy coordinate system. According to the embodiments of the present application, based on supporting simple, flexible and friendly configuration of the layout of the diversity components, the problem of obtaining layout information between report components is solved.
Owner:BEIJING XIAODU INFORMATION TECH CO LTD

Method for detecting ultrasonic three-dimensional imaging of lamellarflaw distribution

The invention relates to a method for detecting ultrasonic three-dimensional imaging of lamellarflaw distribution. The method comprises the following steps of firstly, providing and adopting an ultrasonic water immersion focusinglayered C scanning method to extract lamellarflaw ultrasonic three-dimensional imaging data, measuring a focusing area of a focused beam through a test method, confirming a layered C scanning spacing according to the measured result, and achieving the aims of efficiently and accurately acquiring data; secondly, providing a three-dimensional imaging data reconstruction method, setting a searching window according to a layered scanning focal position and a focal area range, carrying out pulsewave crest searching in the window range, and confirming three-dimensional imaging of flaws; finally, realizing three-dimensional imaging of the internal lamellarflaws based on a programming environment design and development three-dimensional imaging software of a virtual instrument. The method for detecting ultrasonic three-dimensional imaging of lamellarflaw distribution provided by the invention has the advantages that the problems of larger calculated amounts of acquiring, processing, reconstructing and visualizing industrial component three-dimensional imaging data, high detection cost and the like are solved, and the aim of accurately and quickly measuring workpiece internal lamellarflaw three-dimensional distribution and dimension is achieved.
Owner:FANGDA SPECIAL STEEL TECHNOLOGY CO LTD

River historic morphology digital recovery method

The invention provides a river historic morphology digital recovery method. The method comprises the steps of on the basis of selecting a river section in which the development of an alluvial stream and terraces is complete, selecting a representative cross section of a river section which is planned to be recovered, conducting sediment cylindrical sample drilling, conducting layering according to sediment physical characteristics, recording three-dimensional space coordinates of each layer, then performing age determination on each settled layer, finally conducting line connecting on the three-dimensional space coordinates of the settled layers with an identical age in different sediment columns on the same cross section in general drawing software, wherein obtained cross section morphology is river historic morphology under the age, and conducting line connecting on the coordinates of all ages in sequence, that is, morphology recovery of the whole cross section in all history ages is completed, and the historic morphology recovery of the whole river section is completed after multiple cross sections are recovered. According to the river historic morphology digital recovery method, a geology age measuring technology and a river dynamics cross section molding principle are cross, and the method can be applied to most alluvial river historic morphology recovery, and has important practical value for study of a river landform evolutionary process.
Owner:CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION

Host fingerprint-based anonymous network hiding service tracing method

The present invention provides a host fingerprint-based anonymous network hiding service tracing method comprising the steps of: 1) building a host fingerprint information base of a global IPv4 address space, wherein the fingerprint information of each host is identified by the union of fingerprint information of all the network services running on the host; 2) extracting fingerprint information of an anonymous network hiding service open port, wherein fingerprint information of each anonymous network hiding service is identified by the union of fingerprint information of all ports which are opened by the hidden service; and 3) matching fingerprint information of the extracted anonymous network hiding service in the host fingerprint information base of the global IPv4 address space to achieve anonymous network hidden service traceability. This method enhances the efficiency of hiding service traceability of anonymous networks and at the same time can be widely used to combat criminal activities that use anonymous networks.
Owner:INST OF INFORMATION ENG CAS

Method and apparatus for obtaining and analyzing data information aimed at data object

The invention provides one data subject based data information get and analysis method and device, which comprises the following steps: receiving first user trigger to get data subject information composed of user IP address; second first and second user telephone number to inform network connection to first and second user to fulfill dialogue; getting the telephone behavior data information composed of number and valid time length; analyzing IP address relative number and when certain IP address user valid dialogue length is less than preset time, then this trigger behavior is invalid.
Owner:北京互联易通信息技术有限公司

Double-field variable-focus three-dimensional measurement system

InactiveCN103134444AHigh precision extractionQuickly acquire 3D informationUsing optical meansReal variableMotor drive
The invention relates to a double-field variable-focus three-dimensional measurement system. The system comprises a primary-secondary mirror imaging measuring system, a two-dimensional tracking rotating-mirror device and an adaptive control system. The primary-secondary mirror imaging measuring system is composed of a telephoto subsystem, a short-focus subsystem and a launching light source. The telephoto is composed of a main lens, a first spectroscope, a second spectroscope and a detector. The short-focus system is composed of the main lens, the first spectroscope, the second spectroscope and the detector. The two-dimensional tracking rotating-mirror device is composed of a reflector, a electric rotating motor, a regulating handle, an upper half shaft, a lower half shaft and a horizontal shaft. The adaptive control system is composed of a computer, an input and output (I / O) control circuit, an electromotor and a signal processing and controlling circuit. The system has the advantages of being tight in arrangement, high in measuring efficiency, convenient to measure and is suitable for the three-dimensional measuring of moving and static objects.
Owner:TONGJI UNIV

Voltage measurement device for high-voltage direct-current power transmission valve assembly

The invention belongs to the technical field of measurement and test, and particularly relates to a voltage measurement device for a high-voltage direct-current power transmission valve assembly. The measurement device comprises an upper circular plate electrode, a high-voltage arm resistor, a lower circular plate electrode and a low-voltage arm which are connected in turn from the top to the bottom; the upper circular plate electrode, the high-voltage arm resistor and the lower circular plate electrode form a transverse H-shaped symmetrical circular plate electrode structure; space capacitors between the high-voltage arm resistor and the upper and lower circular plate electrodes are taken as high-voltage arm capacitors; the upper end of the high-voltage arm resistor is provided with a high-voltage lead end, while the lower end is sleeved with an insulating cushion cover; and the lower circular plate electrode is in insulated connection with the high-voltage arm resistor through the insulating cushion cover. The measurement device has the advantages of small volume, high reliability, good stability, simple and convenient maintenance and the like; the measurement range of the measurement device can reach + / -50kV, the frequency band is 0 to 10MHz, the actually measured partial pressure ratio is 33,464: 1, and the maximum measurement error is 2.48 percent; and the measurement device can fully meet the measurement requirement of converter valve test.
Owner:CHINA ELECTRIC POWER RES INST +1

Data fusion and data mining method for multi-type mass spatial target data

The invention provides a data fusion and data mining method for multi-type mass spatial target data. According to the method, first, multisource spatial target data is collected, data fusion is performed on the obtained multisource spatial target data, a spatial target information base is formed, a spatial target data management system is constructed according to the spatial target information base, and the spatial target data management system is connected with simulation analysis software; and then data mining is performed on the multisource spatial target data in the spatial target information base, meanwhile, data input is provided for planning simulation of satellite earth observation task scheduling, and planning simulation analysis of satellite earth observation task scheduling is performed to obtain optimized satellite earth observation task scheduling. Through the method, the multisource data fusion technology is utilized to perform collection, sorting and efficient fusion onmultiple types of needed data, data support and decision support can be provided for aerospace system task analysis and efficiency simulation calculation, and the method has high application value.
Owner:BEIJING INST OF SPACECRAFT SYST ENG

Method and system for providing password resources and host machine

PendingCN111782344AEasy security controlEasy to achieve complianceDigital data protectionDigital data authenticationPasswordSoftware engineering
The embodiment of the invention provides a method and system for providing password resources and a host machine, at least one virtual machine runs on the host machine, and the host machine comprisesa virtual password module running on the virtual machine; and a virtual password back-end module which is configured to map a password function of a password function component to the virtual passwordmodule, and the password function comprises password calculation or key management. According to the embodiment of the invention, password calculation and key management presented by the virtual password module are completed in password resources on the host machine side, so that compliance is easier to realize, and security control is easier to perform.
Owner:BEIJING CERTIFICATE AUTHORITY

A Kinetic Estimation Method for Wind Erosion Release Factor of Open Particle Sources

The invention discloses a dynamic estimation method for an open-air and open particle source wind erosion release factor, which belongs to the atmospheric particulate matter control technical field of the environmental science and engineering technical field, wherein an aerodynamic computing method is adopted; and by computing flow field distribution when wind blows around a particle source and by being combined with an experimental verification, the action height of a friction wind velocity is confirmed, the friction wind velocity value in each grid subregion on the surface of the particle source is obtained, the obtaining problem of the friction wind velocity value is solved and then the release factor can be obtained through computation. Compared with a traditional source strength estimation method, i.e. the environmental protection agency (EPA) pattern, which is provided by the EPA and is based on experimental measurement, the error delta of the invention is kept between 6.0 percent and 12.5 percent and the invention has higher precision.
Owner:SHANDONG UNIV OF SCI & TECH

Remote sensing detection method based on unmanned aerial vehicle platform

A remote sensing detection method based on an unmanned aerial vehicle platform belongs to the field of remote sensing and surveying. The invention aims to solve the problem that existing spectral image data and laser radar point cloud data cannot be effectively fused due to multi-source heterogeneity. The method comprises the steps of using a spectrum detector and a LiDAR detector as an integral frame to be mounted below an unmanned aerial vehicle; adopting an unmanned aerial vehicle ground station to control an unmanned aerial vehicle flight controller to send a data acquisition command to amicrocontroller, and then performing synchronous acquisition control on a spectrum detector, a LiDAR detector and an IMU / GPS integrated navigation unit; performing data registration to obtain a spatial corresponding relationship between the two types of data; performing up-sampling on the acquired data to realize spatial consistency sampling of the data; fusing the spectral image data and the LiDAR point cloud data according to the spatial corresponding relation to obtain multi-spectral / hyperspectral point cloud data. According to the invention, on the basis of realizing integrated detection of image-spectrum-space multi-dimensional data, spectrum and space information is fused, and finally spectrum point cloud is generated.
Owner:HARBIN INST OF TECH
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