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154results about How to "Reliable data source" patented technology

Method for three-dimensional (3D) printing of restoring implant by bony articular surface reconstruction

The invention provides a method for three-dimensional (3D) printing of a restoring implant by bony articular surface reconstruction. First three-dimensional reconstruction of a bone articular model is performed, and then virtual restoration reconstruction of bony articular reconstruction, reversal design of a bone articular defect area restoring implant and 3D printing forming of a bone articular defect restoring implant are performed. Modeling software is utilized to copy a normal side bone articular three-dimensional model to an affected side in a sagittal plane symmetry mode, so as to obtain a complete structure reference model before the occurrence of fracture of the affected side; 3D printing pro-processing software is utilized to support and generate the model, a corresponding forming material and a quick forming process are selected to perform 3D printing, a support structure of the implant is further removed, and finally an individual bone articular reconstruction restoring implant is obtained. The individual reversal design is performed according to the symmetry morphological structure of the human body, the bony articular surface reconstruction defect restoring implant is quickly formed by combination with a 3D printing technology, not only can a bone articular defect restoring reconstruction be greatly improved, but also the design and manufacturing efficiency of the implant is effectively improved, the cost is reduced, and customized design and individual-based treatment are performed.
Owner:SOUTHERN MEDICAL UNIVERSITY

Method for extracting width of river channels within basin by using digital elevation model

The invention discloses a method for extracting the width of river channels within a basin by using a digital elevation model. The method comprises the following main steps: the digital elevation model (DEM) data of the basin are extracted; the slope grids, river channel grids and confluence accumulative grids of the basin are calculated according to the digital elevation model (DEM) data of the basin; near-river channel slope grids are extracted by using the slope grids and the river channel grids; near-river channel confluence accumulative grids are extracted by using the confluence accumulative grids and the river channel grids; moving average calculation is performed on the basis of the near-river channel slope grids, so that moving averaged near-river channel slope grids can be obtained; and the width of the river channels within the basin is extracted on the basis of the near-river channel confluence accumulative grids and the moving averaged near-river channel slope grids. The method of the invention has the advantages of stable and reliable data sources, high calculation efficiency, objective and reasonable results and the like. With the method adopted, the rapid calculation and extraction of the width of the river channels within the basin can be benefitted.
Owner:HOHAI UNIV

High voltage circuit breaker self-diagnosis method based on abnormal sample identification

ActiveCN105759201AAvoid interferenceIntuitively reflect the degree of influenceCircuit interrupters testingProcessing typeData set
Provided is a high voltage circuit breaker self-diagnosis method based on abnormal sample identification, comprising: (1) collecting high voltage circuit breaker current characteristic data through high voltage circuit breaker manufacturers, Jiangsu province maintenance departments, etc.; (2) initializing a storage area (including a real time database, a distinguishable area and an undistinguishable area) of a self-diagnosis model; (3) setting self-diagnosis model correlated parameters of following modules: a PSO optimization module, a KFCM identification module, etc.; (4) placing an initial training data set in the distinguishable area of the self-diagnosis model, adding KFCM clustering results based on the initial training data set into the real time database, and accordingly the PSO optimization module calculating the initial parameter of an SVDD detection module; and (5) the self-diagnosis model performing circular operation to process test samples, processing types comprising: distinguishable sample processing, undistinguishable sample processing and new fault type appearance processing. The method can effectively clarify and summarize current data of a high voltage circuit breaker, and provide a more scientific basis for management of electric power maintenance departments, and production and improvement of high voltage electrical equipment manufacturers.
Owner:JIANGSU ZHENAN ELECTRIC POWER EQUIP

Indoor position service-oriented navigation network construction method

The invention provides an indoor position service-oriented navigation network construction method, which comprises the following steps of S1, importing a BIM building model in a target building IFC format, and obtaining an original model capable of being applied to indoor position service through three-dimensional visualization; S2, extracting semantic information in IFC through semantic filtering, and constructing an ontology model in a formalized mode; S3, in the form of a dual graph, converting the topological relation in the original model into a graph model; S4, extracting geometric information of structural components such as rooms, columns, walls and stairs and indoor facilities such as furniture in the BIM model, constructing constraint boundaries, performing spatial subdivision through a limited Delaunay triangulation refinement algorithm, and constructing a geometric network model; and S5, integrating the ontology model, the graph model and the geometric model data to form anavigation network for indoor position service. Based on BIM model data, a dual model is established by extracting semantic information, geometric information and a topological relation, and a construction method considering a real indoor environment navigation geometric network is explored.
Owner:NANJING FORESTRY UNIV

Mountainous area reservoir area riverway water surface width estimation method

The invention relates to a mountainous area reservoir area riverway water surface width estimation method. Further development is made on the basis of a river width model constructed under the naturalcondition, the relative reasonable and reliable mountainous area reservoir area riverway width estimation method is provided, the distributed model confluence calculation accuracy is improved, the problem about estimation of the small and medium-sized basin mountainous area reservoir area riverway width lake of observational data is solved, important essential data are provided for reservoir flood control regulation, hydraulic power generation, channel improvement and the like, the reservoir regulation scientificity is improved, and safety of downstream zones can be better and practically protected. The mountainous area reservoir area riverway water surface width estimation method is mainly applied to a drainage basin digital elevation model, data sources are stable and reliable, the computational efficiency is high, the result is objective and reasonable, automation generation of drainage basin riverway width and direct calling of a distributed hydrologic forecasting model are facilitated, and the development of digital hydrology, the distributed hydrologic forecasting model and reservoir scientific management is promoted.
Owner:HOHAI UNIV

Laser tracking multi-station positioning method for super-large gears

ActiveCN103712557AReliable data sourceImprove 3D measurement accuracyUsing optical meansEnvironmental geologyLaser tracker
A positioning method for a super-large gear laser tracking in-situ measurement system belongs to the technical field of precision measurement. Based on the positioning method, different measurement spaces are divided and different stations are arranged first according to global geometric features of different gears. During positioning, a plurality of to-be-measured points are arranged in a measurement area, and usually, modeling of a large gear requires acquisition of measurement data of the upper end face and the addendum circle of the gear. A laser tracker carries out measurement outside the area of the to-be-measured points, and the laser tracker is sequentially moved to acquire three-dimension coordinate values of the to-be-measured points of different stations. In order to unify the coordinate values of the to-be-measured points of different stations, a reference station needs to be selected to unify coordinates of other stations to the reference station. Finally, optimization calculation is carried out with the use of redundant data provided by the multiple stations to obtain coordinate correction values of the to-be-measured points, thus providing a reliable data source for building a gear coordinate model and improving the accuracy of gear positioning.
Owner:BEIJING UNIV OF TECH

Beidou continuously operating reference station (CORS) compatible bus precise positioning system and working method thereof

The invention relates to a Beidou continuously operating reference station (CORS) compatible bus precise positioning system. The Beidou continuously operating reference station (CORS) compatible bus precise positioning system includes a Beidou CORS compatible bus precise positioning terminal, a CORS positioning system, a communication service center and a bus background management system; the Beidou CORS compatible bus precise positioning terminal includes a CPU module, a power source module, a Beidou/GPS dual-mode positioning module, an inertial navigation positioning module, a 3G/4G communication module, a touch screen display module and a storage module; and the CORS positioning system includes a base station, a data processing center and a communication gateway 1. According to the Beidou continuously operating reference station (CORS) compatible bus precise positioning system of the invention, the GPS and the CORS are combined together, and therefore, the effectiveness and integrity of the system can be improved; the defect of incapability of performing position when a bus enters a GPS blind area can be eliminated, and vehicle real-time accurate positioning can be realized, and positioning accuracy can reach a centimeter level; accurate positioning data which are obtained in real time are transmitted to a background management center so as to be stored, and therefore, reliable data can be provided for the generation of bus roads.
Owner:SHANDONG UNIV

Series feature extraction system and method aiming at general voice task in voice signal

The invention discloses a series feature extraction system and method aiming at a general voice task in a voice signal. After an emotional corpus is built, voice preprocessing is performed; an audio file subjected to voice preprocessing is used as input to be connected with a voice feature extraction model; the voice feature extraction model can obtain basic information and prominent features of aspeaker through a voiceprint recognition layer; the basic information and the prominent features are fed into a voice recognition layer together; the information of the speaker and the text information are obtained; on the basis of extracting keywords, the information and low level descriptors are transmitted into an emotional recognition layer together; personalized voice features and emotionalfeatures are used for performing emotional recognition to obtain emotional relevant features; a voice feature extraction model can also obtain the basic information and the prominent features of the speaker through the voiceprint recognition layer; the basic information and the prominent features are fed into the voice recognition layer together with voice recognition features; the information ofthe speaker and the low level descriptors are transmitted into the emotional recognition layer together; and the emotional feature output is performed. The series feature extraction system and methodhave the advantages of great data scale, accurate emotion expression, high integration level and the like.
Owner:DALIAN NEUSOFT UNIV OF INFORMATION

Mountain torrent rapid early warning and forecasting method based on multi-dimensional rainfall characteristic space optimal decision

ActiveCN110009002ASolve the problem of rapid early warning and forecastingGuaranteed accuracyCharacter and pattern recognitionOptimal decisionOrthogonal coordinates
The invention discloses a mountain torrent rapid early warning and forecasting method based on multi-dimensional rainfall characteristic space optimal decision. The method comprises: firstly, calculating initial soil water saturation S of a successive historical rainfall flood process based on a three-layer evapotranspiration principle; secondly, counting the rainfall P of the successive historical rainfall flood process; thirdly, quantifying a rainfall space distribution characteristic K of a successive historical rainfall flood process by combining drainage basin DEM data; calculating a landform unit line of the drainage basin based on the DEM data; taking P, K and S as mutually orthogonal coordinate axes to construct a multi-dimensional rainfall characteristic space coordinate system, establishing a rainfall data point set, dividing the corresponding rainfall data point set into two types of an ultra-alarm subset A and a non-ultra-alarm subset B according to whether the flood process is over-alarm or not, and solving an optimal classification decision equation between the two types of subsets by combining an SVM principle; and if early warning is needed, calculating the runoff process at the outlet of the drainage basin by taking the rainfall as the input of a landform unit line, and carrying out real-time flood forecasting.
Owner:HOHAI UNIV

Domain name information maintenance system based on block chain hybrid consensus

The embodiment of the invention provides a domain name information maintenance system based on block chain hybrid consensus. A first network node where an international general top-level domain registration office is located forms a gTLD block chain, and a second network node where a top-level domain registration office of each country or region is located forms a ccTLD block chain. In each blockchain, the domain name information updating process is jointly participated by the network nodes of the block chain, the domain name information updating process cannot be influenced by faults or attacks of a certain network node, and the decentralized maintenance mode is safer than a centralized maintenance mode and has the advantage of being beneficial to maintaining the stability of the system.International general domain name information maintenance and national domain name information maintenance are carried out separately, the difference between the regional domain name and the generaldomain name in information maintenance is adapted, and the information maintenance efficiency is improved. In addition, the domain name information is prevented from being maliciously tampered throughthe block chain technology, and a reliable data source is provided for domain name updating.
Owner:CHINA INTERNET NETWORK INFORMATION CENTER

Method for evaluating running health state of magnetic control paralleling reactor

The invention discloses a method for evaluating the running health state of a magnetic control paralleling reactor. The method comprises the steps that (1), the running characteristic of the magnetic control paralleling reactor is considered, indexes for evaluating the running health state of the magnetic control paralleling reactor are specifically selected, and the measured values of the evaluation indexes are obtained; (2), normalization processing is carried out on the measured values of the evaluation indexes through reactor preventive test regulations and the data of field researches, and evaluation index quantized values of the same measuring unit are obtained; (3), solution of the state grade membership degree is carried out on the evaluation index quantized values based on the fuzzy theory, and the different state grade membership degrees of all the evaluation indexes are obtained; (4), the running health state of the magnetic control reactor is comprehensively evaluated through an evidence theory evaluation model, and the running state of the magnetic control reactor is determined. According to the method, sample learning does not need to be carried out through a large number of prior data, and the running state of the reactor can be accurately diagnosed.
Owner:STATE GRID CORP OF CHINA +2

Intelligent building management method and device, medium and electronic device

The embodiment of the invention relates to the technical field of information, and provides an intelligent building management method and device, a medium and an electronic device. The method comprises the steps: collecting the position information, health information and environment information of personnel in an intelligent building, and carrying out the video monitoring; comparing the health information of the personnel in the intelligent building with a preset health standard, and predicting whether a health safety risk exists or not; comparing the environment information of the intelligent building with a preset environment standard, and predicting whether an environment safety risk exists or not; analyzing abnormal behaviors in the intelligent building according to video monitoring;and when at least one of the health safety risk, the environment safety risk and the abnormal behavior exists, sending risk prompt information in combination with the position information. According to the embodiment of the invention, the position information, the health information and the environment information of the personnel in the intelligent building are compared with the standard, the health of the personnel and the safety risk existing in the environment are predicted, and early warning information is given in time according to the prediction result.
Owner:TAIKANG LIFE INSURANCE CO LTD

A traffic collection method for network or application performance management

The embodiment of the invention provides a flow collection method for network or application performance management. The flow collection method comprises the following steps: a collection unit carriesout network packet monitoring on a target virtual network card in a shared memory by calling a packet grabbing socket interface of an operating system kernel; If the collecting unit detects that there are newly added network packets in the shared memory, the collecting unit collects the new network packets and completes the flow collection; The shared memory is the memory shared by the collectionunit and the operating system kernel, and the newly added network packets are the network packets sent or received by the target virtual machine corresponding to the target virtual network card. A method for collecting traffic for network or application performance management provided by an embodiment of that present invention carries out network packet monitoring on a target virtual network cardin a shared memory by setting a collection unit, if a newly added network packet is detected, the newly added network packet is acquired, the high-efficient flow collection can be carried out, a reliable data source is provided for a back-end analysis tool, and the flow of mutual visit can be completely collected without changing the virtual machine.
Owner:北京云杉世纪网络科技有限公司

Online quantitative recognition analysis method for loose fault of bearing support of rotor system

The invention provides an online quantitative recognition analysis method for a loose fault of a bearing support of a rotor system. The method comprises the following steps: 1) establishing a bolt model with spiral threads; 2) acquiring a change rule of load distribution between junction surfaces of screw connection following the loose amount; 3) acquiring the change rule of normal contact stiffness and damp of the junction surfaces of screw connection following the loose amount; 4) acquiring the change rule of equivalent stiffness and damp at the loose position following the loose amount; 5) establishing a dynamical model taking the loose bearing support as an object, thereby acquiring a relation between the loose amount of the bearing support and the oil film pressure endured by the bearing support; 6) acquiring the relation between the thickness distribution of a lubricating film and the loose amount; 7) monitoring the change rule of the thickness distribution of the lubricating film in a sliding bearing online in real time; 8) quantitatively recognizing and analyzing a loose fault signal of the bearing support online. According to the method provided by the invention, a dynamical model establishing method and a fault carrier signal with a shorter route and few influence factors are supplied for the loose fault of the bearing support.
Owner:XI AN JIAOTONG UNIV

Simulation method of multi-model flexible architecture based on basin fine classification

ActiveCN110928965AHigh precisionSolving mountainous watershed classification problemsClimate change adaptationGeographical information databasesHydrometryObservation data
The invention provides a simulation method of a multi-model flexible architecture based on basin fine classification. The simulation method comprises the following steps: S1, constructing a Xinanjiang-Green Ampt mixed runoff production calculation model of a semi-humid semi-arid basin; S2, subjecting the semi-humid and semi-arid watershed to infiltration-excess and saturation-excess sub-watersheddivision for fine classification; and S3, constructing a flexible architecture model of the infiltration-excess and saturation-excess space of the semi-humid and semi-arid watershed, and performing calculation. The invention provides a convenient and effective method for forecasting the flood process of the semi-humid and semi-arid region, finely classifies the watershed, provides a more reasonable and reliable simulation method for simulating the flood, and improves the calculation precision of the hydrological model. And meanwhile, the problem of classification of mountainous watersheds in medium and small drainage basins lacking observation data is solved, important basic data is provided for flood forecasting and other aspects of the semi-humid and semi-arid regions, and the scientificity of flood forecasting of the semi-humid and semi-arid regions is enhanced. The method is stable and reliable in data source, high in calculation efficiency and objective and reasonable in result.
Owner:HOHAI UNIV

Ward full-automatic medicine distributing nursing system

ActiveCN103714502AReduce labor intensityImprove management intelligenceData processing applicationsLIFE SUPPORT EQUIPMENTMedical ward
The invention discloses a ward full-automatic medicine distributing nursing system. The ward full-automatic medicine distributing nursing system comprises a ward full-automatic medicine distributing nursing subsystem, a cloud medical treatment information platform and an expansion layer, wherein the cloud medical treatment information platform is connected with the expansion layer through a network. The ward full-automatic medicine distributing nursing subsystem comprises a bedside subsystem and a medical treatment comprehensive information subnet; the bedside subsystem is formed by connecting a solid medicine distributing nursing machine and extensible equipment through standard wired or wireless communication protocols; the extensible equipment is monitoring, treatment and life sustaining equipment related to patient treatment and nursing; the solid medicine distributing nursing machine comprises a main controller and functional modules; both-way communications between the medical treatment comprehensive information subnet, a terminal and the bedside subsystem are achieved by a system server through the network; both-way communications between the cloud medical treatment information platform and the ward full-automatic medicine distributing nursing subsystem are achieved through the network; the ward full-automatic medicine distributing nursing subsystem is connected with the expansion layer through the network. By using the ward full-automatic medicine distributing nursing system, hospital ward nursing automation and networking are achieved.
Owner:陈楚龙
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