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175results about How to "Guarantee data quality" patented technology
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Laser radar road reconstruction and expansion exploratory survey design method
ActiveCN103711050AHigh accuracy of resultsImprove integrityRoads maintainenceRoad surfaceRoad traffic
The invention discloses a laser radar road reconstruction and expansion exploratory survey design method. The method comprises the steps of A designing a result coordinate benchmark, measuring basic control and measuring pavement control points; B determining parameters including the data density, acquisition route and the like, and acquiring vehicle laser radar data along a main road and a ramp; C determining parameters including the data density, flight design and the like, and acquiring airborne laser radar data according to a designed flight strip; D realizing laser radar data fusion by refining laser point cloud plane coordinates and elevation coordinates and refining track line data; E acquiring characteristics of road traffic lane lines by using point cloud intensity information, and realizing extraction of characteristic lines of road pavements, protection and the like by adopting a method of projecting three-dimensional point clouds to a two-dimensional plane; F recovering planar elements and longitudinal surface elements of an existing road; G producing a DEM (digital elevation model), a DOM (digital orthophoto map) and a DLG (digital line graphic); H collaboratively designing laser radar measurement and road reconstruction and expansion CAD (computer-aided design), designing flat, longitudinal and transverse cross sections of a road, comparing and selecting schemes, and outputting final design drawings and charts.
Owner:CCCC SECOND HIGHWAY CONSULTANTS CO LTD
A cloud control platform system for vehicle-vehicle and vehicle-road collaboration and a collaboration system and method
ActiveCN109714730AImprove securityImprove efficiencyParticular environment based servicesBroadcast service distributionNetwork connectionDistributed computing
The invention discloses a cloud control platform system for vehicle-vehicle and vehicle-road collaboration and a collaboration system and method. The cloud control platform system comprises an interconnection and intercommunication module (11), a perception fusion module (12), a basic data real-time message system (13) and a user application real-time operation environment (14). The user application real-time operation environment (14) provides a real-time optimized cloud computing environment for the user application on the cloud control platform system (1) according to the requirements of each network connection application on real-time performance and time delay, and performs real-time deployment and migration on the user application based on working conditions; And the interconnectionand intercommunication module (11) regulates and controls the external communication of the cloud control platform system (1) according to the working condition, or regulates and controls the externalcommunication used by the user application by sending an instruction.
Owner:TSINGHUA UNIV +1
Blockchain trusted data management method and system, and computer readable storage medium
ActiveCN108171083AGuarantee data qualityGuarantee authenticityDatabase distribution/replicationDigital data protectionData providerBlockchain
Owner:WEBANK (CHINA)
Three/four-point bending performance test general clamp for material
ActiveCN103674692AImprove efficiencyEliminate replacement timeStrength propertiesTest efficiencyFour point flexural test
The invention belongs to clamps for testing material mechanical properties, and relates to a three / four-point bending performance test general clamp for a material. The three / four-point bending performance test general clamp provided by the invention helps to improve the three / four-point bending performance test efficiency, and especially helps to substantially improve the four-point bending performance test efficiency. Under the prerequisite of satisfying domestic and foreign test standards, five technical measures are employed for improving the efficiency of test preparation work, and specifically the five technical measures comprise generalizing the clamp, displaying span in digital manner, arranging scale on a bearer and performing bidirectional centering. The general clamp provided by the invention is capable of finishing three / four-point bending performance tests, so that the clamp replacing time is saved. When the three-point bending performance test is carried out, only an appropriate pressure head needs installing after two pressure-head seats of the clamp are in contact.
Owner:AVIC BEIJING INST OF AERONAUTICAL MATERIALS
Road feature extracting method based on fracture surface subdivision
ActiveCN103605135ASimple methodWide range of applicationsElectromagnetic wave reradiationModel parametersEnvironmental geology
The invention belongs to the field of laser radar measuring, and particularly discloses a road feature extracting method based on fracture surface subdivision. The method comprises the step of obtaining laser scanning point cloud data through a laser radar measuring device, the step of determining a road feature guide line and extracting road feature nearby point cloud data, the step of generating subdivision sections according to the road feature guide line and a certain step length and calculating the coordinates of proximal point clouds in a subdivision section coordinate system to finish fracture surface subdivision of laser point clouds, the step of selecting one subdivision section with integrated feature information and generating a road feature point cloud template in which a user is interest, the step of determining final conversion model parameters of the road feature point cloud template and the subdivision section point clouds, and the step of calculating the space coordinates of road features, extracting needed features according to the characters of the road features and finally finishing measuring and extracting of the road features. The idea of the fracture surface subdivision is introduced, the complex road features are automatically measured and extracted, the working efficiency is remarkably improved on the premise of guaranteeing measuring precision, and the method has remarkable economic and social benefits.
Owner:中交城乡建设规划设计研究院有限公司
Test data automatic generation device and test data automatic generation method
ActiveCN104063314AHigh degree of automationRealize automatic generationSoftware testing/debuggingPath generationInvalid Data
Owner:INDUSTRIAL AND COMMERCIAL BANK OF CHINA
Online recognition and filling method for hourly energy consumption abnormality data of office building
InactiveCN107944464AQuality improvementGood interpolation effectData processing applicationsCharacter and pattern recognitionFeature setPattern matching
The invention discloses an online recognition and filling method for the hourly energy consumption abnormality data of an office building, and the method comprises the following steps: obtaining historical energy consumption data; clearing the historical energy consumption data, and eliminating the abnormality data; building an energy consumption mode feature set according to the outdoor temperature, moment and date attributes of the hourly energy consumption data, and calculating a feature value; collecting the energy consumption data hour by hour, carrying out the energy consumption mode matching, and finding a corresponding feature value; carrying out the online recognition of abnormal data; carrying out the cyclic interpolation of the abnormality data, and carrying out the correction of the interpolation value through a formula; storing the data without abnormality into a database after interpolation; carrying out the rolling correction of the feature values of the energy consumption mode regularly, and then carrying out the online interpolation of the hourly energy consumption data. The method can solve a problem of the recognition and interpolation of the usual abnormality data in the hourly energy consumption of the office building, improves the energy consumption data quality, provides effective data for the further data mining, and promotes the development of the energy saving operation of the building.
Owner:SOUTH CHINA UNIV OF TECH
Method for automatically measuring urban parts
ActiveCN102096072AReduce investmentLow costElectromagnetic wave reradiation3D modellingPoint cloudHigh density
The invention discloses a method for automatically measuring urban parts, belonging to the field of laser radar measurement. The method comprises the following steps of: carrying out field scanning and camera photographing in high density on urban streets and two sides of the urban streets by utilizing vehicle-mounted laser radar measuring equipment to obtain original laser scanning point cloud data and digital photo data; filtering and classifying the original laser scanning point cloud data to obtain the point cloud data of the urban parts; carrying out category subdividing treatment on thepoint cloud data of the urban parts by adopting a self-adaption space cluster analysis means to obtain point gathering data of the same object; carrying out regularly geometric three-dimensional digital simulation and reconfiguration according to the point gathering data of the same object to figure out a plane geometrical center position of the urban parts, wherein the plane geometrical center position of the urban parts is used as a plane measurement coordinate value of the urban parts; superposing the digital photo data and the point gathering data of the same object, and carrying out information annotation on a corresponding point position value in an attribute library according to the plane measurement coordinate value of the urban parts.
Owner:星际空间(天津)科技发展有限公司
Network system capable of selecting optimal route according to type of transmitted data
InactiveUS7319668B2Easy to useGuarantee data qualityError preventionTransmission systemsNetworked systemDistributed computing
A network system, enabling the quality of the data to be ensured and efficient use can be made of the network, including at least one network relay apparatus provided with a discriminating unit for discriminating the type of data transmitted, a selecting unit for selecting the optimal route for each string of data in accordance with the discriminated type and destination, and a holding unit for holding the optimal routing information for each type of data and destination and sending received data toward the optimal route.
Owner:FUJITSU LTD
Data warehouse visual modeling method and device and medium
InactiveCN112364094AReduce dependence on technical capabilitiesEasy to findVisual data miningStructured data browsingGlobal planningData warehouse
The invention relates to a technical scheme of a data warehouse visual modeling method and device and a medium, and the method comprises the steps: global planning: enabling a data warehouse for business to create a business data bus from the top to the bottom; data introduction: configuring a corresponding project space and a physical data source according to the service data bus based on the global planning; specification definition: constructing a visual data model according to the service data bus and a physical data source; and visual analysis: performing visual display on the distribution and details of the data source through a visual interface. The method has the beneficial effects that based on the enterprise dimension, the business process, the atomic index and the derived indexwhich are defined according to the specification, the development dimension table, the fact table and the summary table are further refined through automatic codes; an enterprise data warehouse modelis generated, data application of business layering is facilitated, and meanwhile calculation and storage are optimized; data is rich and fused, and thematic service is more intelligent.
Owner:珠海市卓轩科技有限公司
Acquisition task priority scheduling control method for electricity information acquisition terminal
InactiveCN107404674AOptimize collection task scheduling functionImprove collection efficiencyTelemetry/telecontrol selection arrangementsElectricityScheduling function
The invention discloses an acquisition task priority scheduling control method for an electricity information acquisition terminal. Due to the fact that the type and number of data acquired by an existing acquisition terminal are more and more, acquisition task conflicts are generated in the key working stage of the acquisition terminal, and the key data acquisition success rate of the acquisition terminal is influenced seriously. According to the technical scheme, the method comprises the steps that a main station sends an acquisition scheme for configuring acquisition priorities to acquisition tasks to the acquisition terminal, a passive meter reading mode is adopted by an acquisition terminal router, and meters request the acquisition terminal to read data in turns according to meter records configured in the router; the acquisition terminal conducts meter reading according to the task superlative strategy; and all the meters request the acquisition terminal to read data in turns again, and the acquisition terminal continues to conduct meter reading according to the task preference strategy. According to the acquisition task priority scheduling control method, a data acquisition task scheduling function of the terminal is optimized according to the acquisition task priorities; and by configuring different acquisition priorities to different acquisition tasks, the acquisition efficiency and acquisition success rate of important data can be guaranteed.
Owner:ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY +3
Method for calculating three-dimensional intersection angle of satellite images
ActiveCN103390102ASimple methodShorten acquisition cycleSpecial data processing applicationsArea networkRectangular coordinates
The invention belongs to the technical field of space-to-ground observation, and particularly discloses a method for calculating a three-dimensional intersection angle of satellite images. The method comprises the following steps of A, acquiring image point coordinates of same-name points of a three-dimensional satellite image pair by using a manual measurement or automatic satellite image matching method; B, implementing an RFM (rational function model)-based area network compensation method by utilizing the coordinates of the same-name points of the satellite images to realize the optimization of RPC (rational polynomial coefficient) parameters; C, calculating spatial rectangular coordinates corresponding to object-space points formed by projecting the same-name points onto projection surfaces at different elevations by using a projection trajectory method to finish the spatial reconstruction of same-name light; and D, calculating the three-dimensional intersection angle of the same-name light by utilizing direction vectors of the reconstructed same-name light. The method is applied to the calculation of the three-dimensional intersection angle of any three-dimensional model formed by overlapped satellite images without any ground control point, can be used for the mapping accuracy evaluation of the three-dimensional model, and has remarkable economic and social benefits.
Owner:CCCC SECOND HIGHWAY CONSULTANTS CO LTD
WEB data bank selection method based on WDB (World Data Bank) characteristics and user query requests
InactiveCN101814085AGuarantee data qualityReduce data volumeSpecial data processing applicationsIntegrated systemsDeep Web
The invention provides a WEB data bank selection method based on WDB (World Data Bank) characteristics and user query requests, which comprises steps of: (1) a feature extraction method of a WDB query interface, (2) the relevancy computation of a WDB and user queries based on the WDB characteristics, (3) the estimation of data volume meeting the user queries, (4) redundancy estimation based on the WDB characteristics, and (5) a selection method of data sources based on WDB characteristics and user queries; and through the methods, first questions of data integration and the provision of a high-efficiency data retrieval strategy in a Deep Web field are solved. Aiming at realizing more data returning at lower cost by selecting a most appropriate data bank for querying when facing mass Web data banks, the invention provides a Web data bank characteristic expression and extraction method based on a Web data bank independent sample and the data source selection method combining with the comprehensive consideration of three elements of query relevancy, returned data volume and data redundancy so as to realize the selection of a WEB data bank based on the WDB characteristics and the user queries and better meet the requirements of an integrated system.
Owner:林培光
Method for forecasting influence range of highway traffic incident on basis of microscopic simulation
InactiveCN104657199AImproved estimation precision and accuracyGuarantee data qualitySoftware simulation/interpretation/emulationPrediction methodsReal-time computing
The invention discloses a method for forecasting an influence range of a highway traffic incident on the basis of microscopic simulation and relates to the technical field of forecasting on the influence range of the traffic incident. The embodiment of the invention provides the following technical scheme that forecast future traffic demand data and traffic incident information are loaded a micro traffic simulation platform, and micro behaviors such as response, deceleration, queuing and the like of a vehicle in the traffic incident are simulated by a micro traffic simulation model so as to forecast the influence range of highway traffic time. Compared with a method for forecasting the influence range of the highway traffic incident on the basis of a traffic-wave theory, the forecasting method provided by the invention is obvious improved in precision and accuracy of estimating the influence range of the traffic incident; moreover, according to the embodiment of the invention, data is not limited to the arrangement condition of a vehicle detector, the application range is obviously enlarged, and the method is more suitable for forecasting the influence range of the highway networked traffic incident.
Owner:CHINA ACAD OF TRANSPORTATION SCI
Application report form realization method and application report form realization equipment based on Hadoop platform and storage medium
ActiveCN107908672AEnsure consistencyImprove scalabilityDatabase distribution/replicationMulti-dimensional databasesData warehouseData quality
The invention discloses an application report form realization method based on a Hadoop platform. The method includes: carrying out extraction and conversion processing on source data stored in an HDFS, then loading the data into a data form of a near-source layer of a data warehouse, and extracting data therefrom for data quality verification; if verification is successful, carrying out conversion processing on the extracted data, then loading the data into a data form of a model layer of the data warehouse, and then extracting data therefrom for data quality verification; if verification issuccessful, carrying out conversion processing on the extracted data, and then loading the data into a data form of an application layer of the data warehouse; and carrying out data quality verification on data in the data form of the application layer, if verification is successful, using the data form of the application layer as a to-be-reported application report form, and otherwise, issuing averification anomaly alarm. The invention also discloses application report form realization equipment based on the Hadoop platform and a computer-readable storage medium. According to the method, massive data submission can be realized under low-cost hardware resources, and high-data-quality submission requirements are satisfied.
Owner:WEBANK (CHINA)
Crowdsourcing sensing method and system for quality sensitive geographical regional information
InactiveCN105976205AMeet quality coverage needsQuality assuranceMarket data gatheringData scienceAnalysis method
The invention discloses a crowdsourcing sensing method and system for quality sensitive geographical regional information. A platform provides a sensing task of multiple sampling interesting points in a geographical region. Contract-issuing parties submit sensing task sets of required interesting points, corresponding quality coverage demands and prices to the platform. Participants submit interesting point sensing task sets of sensing scopes according to the locations where the participants are situated, corresponding quality indexes and prices. The work with the quality coverage demands not satisfied by all participants and the work with monopoly participants are eliminated according to the sorting mechanism of the contract-issuing parties in combination with the feasibility analysis method, so as to select contract-issuing party winner set and determine the actual payment amount of the contract-issuing party winners. Based on a participant sorting mechanism, a set of participant winners who satisfy quality coverage demands with lower total price is selected. Based on a pricing mechanism, the payment for the participant winners is determined. If the budget balance is met, the participant set that just satisfies the quality coverage demand is allocated to the corresponding contract-issuing party winner as possible through the allocation mechanism.
Owner:NANJING UNIV OF POSTS & TELECOMM
Method for realizing mass sensitivity-based incentive mechanisms in mobile crowdsourcing systems
InactiveCN105069682AEnsure interest relationshipGuaranteed credibilityCommerceData reliabilityMechanism based
The invention discloses a method for realizing mass sensitivity-based incentive mechanisms in mobile crowdsourcing systems. The method comprises the following steps: distributing a task by a distributor through a platform; preliminarily screening participants by the platform; participating by the screened participants through a competitive bidding way; sending data to the platform by the participants which satisfy secondary screening of the platform; carrying out quality detection on the data by the platform so as to obtain data reliability; scoring the data by the distributor; and finally closing the deal. According to the method provided by the invention, a game mechanism-based validation method is adopted and the scores of the distributor are validated through players. Finally, the platform updates the reputation degrees of the distributor and the players through the factors such as the reliability value of the data, the scores of the distributor, the credit rank of the distributor and the like. According to the method provided by the invention, the behaviors of the users in the mobile crowdsourcing systems can be effectively stimulated and the data quality is improved.
Owner:NANJING UNIV OF POSTS & TELECOMM
Population distribution calculation method
ActiveCN109189949AImprove accuracyImprove spatial resolutionImage analysisDigital data information retrievalNew populationTraffic management
The invention discloses a population distribution calculation method. The method includes: firstly, preprocessing a mobile phone base station and on-line population distribution thermodynamic map datain a research area, wherein the Tyson polygon set is established for the base station data of the mobile phone, which is denoted by S; capturing the original point data of the online population distribution thermodynamic map of the corresponding area, and generating the grid data of the population distribution density by using the kernel density method, which is recorded as Z; secondly, finding the corresponding maximum points of online population distribution thermodynamic map for each plot in set S; and then forming a maximum point data set M; Finally, a new population thermodynamic map isgenerated by using the point data set M and the point kernel density algorithm. The invention integrates the characteristics of online population distribution thermodynamic map and mobile phone signaling data, can utilize different types of population thermodynamic map data to improve the accuracy of population distribution calculation, and provides decision basis for urban planning and traffic management.
Owner:JIANGSU INST OF URBAN PLANNING & DESIGN
Metabolism group method for distinguishing false positive mass spectra peak signals and quantificationally correcting mass spectra peak area
ActiveCN106018600AEasy to filterSimple Metabolomics StudyComponent separationGroup studySample dilution
The invention discloses a metabolism group method for distinguishing false positive mass spectra peak signals and quantificationally correcting mass spectra peak area. The invention provides a metabolism group study method; by the method, the biological source and non-biological source mass spectra peak signals can be effectively distinguished; the mass spectra peak signals are quantificationally evaluated; the mass spectra peaks with poor quantification performance are excluded; through QC sample dilution, a relative content correction model is built; the mass spectra peak area is corrected. The method has the maximum characteristics that the false positive mass spectra signals can be effectively eliminated, so that the metabolism group data becomes reliable; the real biomarkers can be favorably screened. The method can aim at plant, animal and microbe samples; the method can also be suitable for the mass-spectra-platform-based metabolism group analysis of GC-MS, LC-MS and CE-MS.
Owner:INST OF BOTANY CHINESE ACAD OF SCI
Automatic verification method for clinical test source data
ActiveCN109102844AReduce workloadReduce overheadNatural language data processingPatient healthcareVertical projectionValue set
The invention discloses an automatic verification method for clinical test source data. The method comprises steps that an obtained source data image of a clinical test is identified through utilizinga CTPN network model, the text area is determined, and the text area is cut to obtain lines of text; vertical projection column cutting for each line of the text is performed to obtain the valid textarea of each line of the text; a set of valid text areas is sequentially inputted into the trained CRNN network to obtain the variable length sequence identification result, and a regular expressionis utilized to extract the text identification result; the text identification result is corrected to obtain the error correction result; feature values are extracted from the error correction resultone by one according to a feature value set, the feature values are compared with standard feature values recorded in a database, the extracted feature values inconsistent with the standard feature values are marked in an alarm state, and an error reminder is formed. The method is advantaged in that CPTN and CRNN are used as the core to carry out clinical test source data image text identification, and then automatic data verification is achieved.
Owner:北京锐客科技有限公司
Navigation electronic map-based method and device for generating TMC matching table
ActiveCN101738193AImprove production efficiencyReduce investmentInstruments for road network navigationRoad vehicles traffic controlService domainComputer science
The embodiment of the invention provides a navigation electronic map-based method and a navigation electronic map-based device for generating a TMC matching table, which relate to the field of traffic information service and can automatically generate the TMC matching table. The invention adopts the following solution that the method comprises the following steps: inputting an electronic map file and a TMC position table file; automatically matching each link with each position point according to the input electronic map file and TMC position table file; and performing attribute assignment for each link according to a matching relationship so as to acquire the TMC matching table. The embodiment of the invention is used for generating the TMC matching table.
Owner:CENNAVI TECH
Data compliance management method and system
ActiveCN105808604AShort processing cycleImprove the efficiency of complianceData processing applicationsSpecial data processing applicationsDirty dataData exchange
The present invention discloses a data compliance management method and system, so as to solve the problem of being unable to timely and accurately dirty data in the prior art. The method comprises: firstly, analyzing the category of data, and categorizing the data into a corresponding data compliance set; and further, searching and recognizing data in the data compliance set, so as to recognize dirty data, so as to further modify the dirty data. By the data compliance management method disclosed by the present invention, the dirty data in a network database is processed, and the dirty data is converted into data that meets a data quality requirement by data compliance, so that data exchange between data nodes is achieved, data quality is ensured, the processing period of data compliance is shortened, the efficiency of data compliance is improved, and meanwhile the consistency of data systems is effectively ensured.
Owner:AEROSPACE INFORMATION
Xenon source virtual point source scale device and method based on point source efficiency function
The invention provides a xenon source virtual point source scale device based on a point source efficiency function. The device comprises radioactive xenon sources, a standard mixing point source and a detector; the radioactive xenon sources are located at different heights over the detector; the standard mixing point source is located at the corresponding height over the detector; energy of rays emitted by the standard mixing point source must cover or approach to energy of rays emitted by the radioactive xenon sources. The 170Tm point source of long half-life is selected to be placed at the virtual point position of a 133Xe and isotope gas source of short half-life to simulate the efficiency of the scale radioactive 133Xe sources, and the problem that as some standard 133Xe and isotopes are short in half-life in actual working process, the use time is short can be solved.
Owner:NORTHWEST INST OF NUCLEAR TECH
A method and system for short-term wind pow prediction
The invention provides a short-term wind power forecasting method and system, comprising: collecting forecasting meteorological data; Inputting the forecasted meteorological data into a short-term wind power forecasting model created in advance to obtain a wind power forecasting value; The training data set of the short-term wind power prediction model is obtained by taking historical meteorological data related to the total output power of the wind turbine as modeling data and extracting the modeling data by PCA principal component. The technical proposal provided by the invention improves the operation speed and the modeling accuracy.
Owner:CHINA ELECTRIC POWER RES INST +2
Three point bending fatigue testing apparatus
ActiveCN106950107AFunction increaseExpand the scope of testingMaterial strength using tensile/compressive forcesMaterial strength using steady bending forcesClassical mechanicsTensile fatigue
The invention provides a three point bending fatigue testing apparatus, which can enrich the functions of a tensile fatigue testing machine so that the tensile fatigue testing machine can carry out three point bending fatigue tests. A rotatable clamping mechanism design is adopted; the bending fatigue tests with a negative stress ratio can be carried out effectively, the boundary conditions of a three point bending experiment can be satisfied, the experiment range is enlarged; a conventional three point clamp is optimized, the apparatus cost is reduced, and the sample positioning problem is solved. The adopted clamping structure can prevent a test piece from sliding during the long term fatigue experiment process; the upper clamping structure of the clamping structure is adjustable so as to clamp test pieces with different thicknesses; the clamping structure is composed of a roller and a trapezoidal block; the roller is in line contact with a test piece during the experiment process and is convenient to replace so as to guarantee the experiment accuracy; the trapezoidal block can prevent the interference on the test piece during the experiment process; and a load can be effectively applied on the test piece during the bending fatigue experiment process (with a negative stress ratio) through the combination of an upper press head and a lower press head.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Enterprise geographic information query and display system
InactiveCN106446047AImprove loading speedGuaranteed accuracyDatabase queryingGeographical information databasesInformation processingThe Internet
The invention relates to the internet information processing field, and especially relates to an enterprise geographic information query and display system. The system comprises a client and a server; the client is in communication connection with the server; and the client adopts a way of asynchronous display to realize the query and display of enterprise geographic information. The system of the invention takes an enterprise as a specialized analysis object, establishes the function of data storage, reading and displaying for the enterprise geographic information query and display, and fills a technical vacancy that services are not specifically provided for providing map information for the enterprise; and the client adopts a way of asynchronous loading to realize the display of the enterprise geographic information, so that the fluency is ensured and user experience is improve; in addition, at least two map platform interfaces are called at the server to acquire geographic latitude and longitude information, so as to realize mutual authentication and completion of data, and guarantee the data quality; and besides, ElasticSearch is also used as the basis of data storage and index, which can realize real-time search and meet the needs of multi-users use.
Owner:成都数联铭品科技有限公司
Test method and system of suitability of soil heavy metal of agricultural regional plot of land
InactiveCN102590473AImprove test accuracyImprove data processing accuracyEarth material testingData setSoil heavy metals
The invention discloses a test method and system of suitability of soil heavy metal of an agricultural regional plot of land, belonging to the technical field of soil test. The method comprises the following steps of: S1, according to a random sampling way, selecting preset number of sampling nodes, obtaining the multivariate data of each sampling node, and recording the coordinate data of all sampling nodes; S2, respectively carrying out data processing for data of each attribute in the multivariate data to eliminate abnormal data; S3, respectively interpolating and fitting the data of each attribute to obtain a multi-index evaluation data set for representing an range of an agricultural regional plot of land to be tested; S4, and determining the soil pollution degree of the range of the agricultural regional plot of land to be tested according to the multi-index evaluation data set. The invention provides a data processing flow method relative to improving the reasonable test for soil heavy metal of the regional plot of land. The data quality can be effectively ensured, meanwhile the data processing accuracy is increased, and therefore the test accuracy of the heavy metal soil of the agricultural regional plot of land is increased.
Owner:CHINA AGRI UNIV
Map information display system based on asynchronous loading
InactiveCN106534478AImprove operating experienceEasy to operateSubstation equipmentGeographical information databasesInformation processingInformation display systems
The invention relates to the Internet information processing field, and more particularly, to a map information display system based on asynchronous loading. The system comprises a customer end and a service end wherein the customer end is communicated and connected with the service end. The customer end realizes the display of target map information based on asynchronous loading. When the customer enters a target map information display page through the customer end, the default map information is displayed firstly, and then through threads, the geographic coordinate information, text information and picture information stored in a service end target are read. And on the basis of the already displayed map page, according to the coordinate position of the target, the position of the target is drawn together with words and picture information corresponding to the target. The system of the invention solves the problems that for synchronous display, too much memory has to be occupied, that the page refreshing efficiency is low, and that pictures are not smooth and continuous. Therefore, when pictures have to be switched, it can be done in a smooth and continuous manner. And the user's use experience is increased.
Owner:成都数联铭品科技有限公司
System and method for determining airfield runway of unmanned plane
ActiveCN102636796AReduce labor intensityImprove work efficiencySatellite radio beaconingSimulationMobile station
The invention relates to a system and a method for determining an airfield runway of an unmanned plane. The system consists of a reference station and a mobile station, wherein the reference station and the mobile station are of the same construction and comprise main control boards, differential GPS (Global Positioning System) boards, digital transmission radio boards and the like. The referencestation is used for obtaining a GPS differential code and sending the GPS differential code to the mobile station through a radio link, so that the positioning accuracy of the mobile station is improved. The mobile station is used for acquiring the GPS data of specified positions of the airfield runway and obtaining the length, width and runway centerline of the airfield runway by using an average and fitting algorithm. According to the system and the method for determining the airfield runway of the unmanned plane, the effect for measuring and processing data of the airfield runway can be quantitatively evaluated instantaneously.
Owner:CAIHONG DRONE TECH CO LTD
Truck GPS trajectory data compression method
ActiveCN111046049AGuarantee data qualityNot easy to influenceGeographical information databasesSpecial data processing applicationsData compressionSimulation
The invention relates to a truck GPS trajectory data compression method, which comprises the following steps: based on truck GPS trajectory data, cleaning the data, i.e., screening the data, so as toremove repeated and invalid data; based on the cleaned truck GPS data, judging a stay point in the truck GPS track data through a predefined speed threshold value and a predefined time threshold value; and compressing the cleaned GPS trajectory data by using a trajectory compression method based on the judged parking point data, truck GPS trajectory data and road network data, and finally storingthe compressed GPS trajectory data as a local Excel file. Through the technical scheme of the invention, the compression rate of the GPS track data of the truck is greatly improved, the processing track is simpler and more complete, the waste of redundant information on storage resources is greatly reduced, and the uploading is quicker.
Owner:SOUTHWEST JIAOTONG UNIV +1
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