83results about How to "Reflect the actual situation" patented technology

The invention relates to a metro station digital twinborn monitoring operation and maintenance system comprising an existing SCADA subsystem; a sensor collection network comprising a plurality of sensors, wherein the sensors are arranged on facilities to be monitored in a metro station; a network camera monitoring unit comprising a plurality of network cameras distributed in the metro station; a server used for achieving data collection, analysis and storage, wherein the server is connected with the existing SCADA subsystem, the sensor collection network and the network camera monitoring unit;a digital twinborn model, wherein the model is a three-dimensional digital model consistent with an actual physical model of the metro station, and the model performs data exchange with the server and displays an actual state of the metro station. Compared with the prior art, the metro station digital twinborn monitoring operation and maintenance system has the advantages of establishing the digital twinborn model to display real-time data from multiple resources through a visual three-dimensional digital model, the actual operation state of the metro station can be reflected more effectively, and the information sharing and data analysis efficiency can also be improved.

The invention discloses a monitoring system, device and method for microclimate of a farm environment, wherein the system comprises an upright device that controls a movable rod to drive a movable arm handle carrying a corresponding element sensor group to move up and down according to a movable rod moving command output by a data acquisition device; the element sensor group that is installed on a corresponding movable wall handle on the upright to monitor the microclimate of the farm environment and outputs the monitored element parameters to the data acquisition device; a camera of an image acquisition device that outputs the image information of plant height of a shot plant to the data acquisition device; the data acquisition device that calculates the canopy height of a plant group according to the image information of the plant height and outputs the movable rod moving command; and meanwhile, microclimate element parameters output by the element sensor group are analyzed. According to the system, the actual condition of the microclimate of the farm environment and the degree of influence on the plants by atmospheric environment can be reflected accurately.

The invention provides a two-dimensional motion slamming test device. The two-dimensional motion slamming test device comprises a mobile bracket, a gliding module and a hoisting module, wherein a lower portion of the mobile bracket is provided with a rolling wheel, the mobile bracket is arranged at a track of a towing tank through the rolling wheel, the gliding module comprises an outer framework mounted on the mobile bracket, four steel trails mounted on the outer framework, and connection components sliding on the steel rails, and the hoisting module comprises a crane mounted at a top portion of the outer framework and an electromagnet connected with a lower portion of the crane. The two-dimensional motion slamming test device is mainly used for simulating a phenomenon of a hull slamming with waves during two-dimensional motion and measures change of a slamming load in a slamming process in real time. The two-dimensional motion slamming test device can accurately reflect a practical situation of the underway hull slamming with the waves.

The invention discloses a method and a system for arc furnace load modeling and parameter identification. The method includes: building an arc furnace three-phase equivalent resistance initial model which comprehensively reflects harmonic waves, flicker and three-phase imbalance characteristics of a real arc furnace and contains to-be-identified parameters for comprehensively reflecting harmonic waves, flicker and three-phase imbalance characteristics of the real arc furnace; obtaining discretized actually measured three-phase voltage value and discretized actually measured three-phase current value; optimizing the arc furnace three-phase equivalent resistance initial model by using the discretized actually measured three-phase voltage value, the discretized actually measured three-phase current value and optimization algorithm to obtain the optimal value of the to-be-identified parameters; and substituting the to-be-identified parameters in the arc furnace three-phase equivalent resistance initial model to obtain an arc furnace three-phase equivalent resistance model. The arc furnace three-phase model built according to an embodiment of the method and the system can reflect actual conditions of an arc furnace operating in power gird more actually.

The invention provides a method for realizing community discovery in social networking. The method comprises the following steps of: for any node in the social networking, computing the dependence of other nodes in the social networking on the node, and finding k nodes with the highest dependence as k neighbors of the node; selecting an unprocessed node from the social networking, and executing the next step until the nodes in the social networking are all processed; and judging whether the k most dependent nodes of the unprocessed node meet the requirements of a k community or not, re-executing the previous step after a community is output if the k most dependent nodes of the unprocessed node meet the requirements of the k community, and if the k most dependent nodes of the unprocessed node do not meet the requirements of the k community, selecting a subset from a set formed by the k most dependent nodes of the unprocessed node, judging whether the selected subset meets the requirements of the k community or not until the community meeting the requirements of the k community is found or all subsets are judged, and re-executing the previous step.

The invention discloses a local rendering method. A local rendering machine comprises scene model data, material data and mapping data; and the local rendering method comprises the following steps: (1) establishing association between the model data and the material data; (2) establishing association between the material data and the mapping data; (3) presetting association between a rendering parameter and a material data file; (4) loading scene model data and matching material data for the scene model data on the basis of the association in the step (1); (5) according to the preset rendering parameter and the association in the step (3), pre-processing the material data by using an optimized rendering engine mode; and (6) according to the association in the step (2), fusing mapping data on the preprocessed material data to finish rendering. The local rending method disclosed by the invention can be mainly used for rendering house design images and other design images and can obtain a good rendering effect.

The invention provides a manufacturing method of an orthodontic implant anchorage guide plate and the orthodontic implant anchorage guide plate. The orthodontic implant anchorage guide plate is manufactured by the following steps of obtaining three-dimensional image data of an oral cavity of a patient, and establishing a virtual oral cavity model; obtaining three-dimensional image data of alveolarbone and three-dimensional image data of tooth root, and establishing a virtual alveolar bone model and a virtual tooth root model; according to the virtual oral cavity model, generating a virtual guide plate model; fixing the relative positions among the virtual guide plate model, the virtual alveolar bone model and the virtual tooth root model; according to the positions of the virtual alveolarbone model and the virtual tooth root model, establishing a virtual guide through hole model on the virtual guide plate model; outputting three-dimensional image data of the virtual guide plate model; according to the three-dimensional image data of the virtual guide plate model, manufacturing the orthodontic implant anchorage guide plate with a guide through hole. The orthodontic implant anchorage guide plate has the advantage that by arranging the guide through hole, the position and angle of an implant anchorage screw are limited, so that the implant anchorage screw can be accurately abutted against the tooth root of the deformed tooth, and the treatment effect is guaranteed.

The embodiment of the invention provides an urban power grid reliability evaluation method taking power generation, power transmission and power distribution systems into integrated consideration. The method mainly comprises the following steps: first of all, an urban power grid is divided into a power transmission network layer, a high-voltage distribution network layer and an intermediate-voltage distribution network layer; according to data of a power transmission network, calculating a reliability index of the power transmission network layer by use of a set algorithm, and converting the reliability index at a bus of the power transmission network layer into a power supply of the high-voltage distribution network layer through an equivalent power supply mode; converting a reliability index of a terminal bus at the high-voltage distribution network layer into a power supply of the intermediate -voltage distribution network layer through an equivalent power supply mode; and according to data of the intermediate-voltage distribution network layer, calculating a reliability index of the intermediate-voltage distribution network layer by use of the set algorithm. The urban power grid integrated reliability evaluation method provided by the embodiment of the invention effectively avoids the defect of only individual reliability evaluation of a power transmission network or a power distribution network, takes influences exerted by the power transmission network on the power distribution network into integrated consideration, and can truly reflect the power reliability of a power system.

The invention provides a voltage sag evaluation process based on a matrix factor. The process includes the steps that (S1) a voltage sag evaluation object is determined, and voltage sag data of a common coupling node of the voltage sag evaluation object are measured; (S2) the voltage sag data are analyzed and sorted, and a voltage sag sensitivity matrix and a voltage sag frequency matrix are built; (S3) a voltage interruption frequency matrix on the common coupling node is computed, and voltage interruption times are obtained through the voltage interruption frequency matrix. By means of the process, actual conditions of equipment when voltage sag occurs during operation of a system can be truly reflected, and the process is suitable for computer processing.

The present invention discloses a method and a device for measuring orthotropic membrane structure elastic modulus, by research and analysis of orthotropic membrane mechanical characteristics, a new method for measuring the orthotropic membrane structure elastic modulus is provided, a measurement theoretical formula is deduced, then the theory correctness can be o verified by experiments, and finally the measuring device applied to engineering practices can be made. The method can be directly applied to measuring of orthotropic and homogeneous membrane elastic modulus, and is a simple and effective measurement method.

The invention discloses a depth domain seismic fluid analysis method, device and system and a computer readable storage medium. The method comprises the steps that pulse data of each sampling point inthe imaging process under different incident angles is acquired respectively; according to each piece of pulse data corresponding to each incident angle, subspace diffusion matrixes in one-to-one correspondence with all the sampling points under the corresponding incident angles are established; a convolution model of a depth domain is established according to each subspace diffusion matrix to obtain a depth domain synthetic seismic record; and inversion analysis is performed on the depth domain synthetic seismic record to obtain an inversion analysis result. According to the method, the subspace diffusion matrix of each sampling point under the different incident angles is established based on the pulse data corresponding to each sampling point under the different incident angles, then the convolution model of the depth domain is established, therefore, the depth domain synthetic seismic record obtained through the convolution model can better reflect the actual situation of an underground medium, and improvement to the precision of depth domain seismic fluid recognition is benefited.

The invention discloses a box girder bridge anti-overturning monitoring system based on structural response measurement. The box girder bridge anti-overturning monitoring system comprises a plurality of pairs of vertical displacement sensors, the vertical displacement sensors are installed at the two ends of the pier top support in pairs and are used for continuously obtaining vertical displacement of the measuring point under the action of the external load; the vertical displacement is converted into a support rotation angle at a corresponding position, whether the support is disengaged or not is judged according to the support rotating angle, further whether the bridge structure has the possibility of overturning risk or not is judged, on-site arrangement of an information acquisition and network communication system are monitored, and an information processing and analysis master control system is deployed at the cloud end. The method has the advantages of being simple in calculation, low in system cost, convenient to construct and the like, and is suitable for anti-overturning monitoring of various box girder bridges.

The invention provides a tool on-time distribution path planning algorithm with hard time windows. According to the algorithm, with the tool demand of a station considered to be splitable, a distribution time window is arranged for each process of the station; an optimization function with a process average satisfaction degree and the number of distribution vehicles adopted as an objective is established, and therefore, actual situations in a workshop tool on-time distribution vehicle path can be reflected more accurately, a distribution scheme based on the actual situations is more reliable;and a genetic algorithm is used to solve a model; a plurality of solutions in a search space are evaluated, and therefore, a risk that a traditional optimization algorithm is easy to fall into a localoptimal solution can be lowered; and the transition rules of probability are used to guide a search direction, and therefore, the algorithm has a self-learning feature and adaptivity.

The invention discloses a satellite information system topological structure optimization method based on a core-degree product. The method comprises the following steps: firstly, abstracting a satellite information system to obtain a corresponding directed graph; secondly, introducing a concept of generalized degree and calculating the generalized degree of each node in the directed graph; thirdly, calculating the node core-degree product of each node in the directed graph and the importance of links; and lastly, comparing the node core-degree products of all nodes in the directed graph with a set node core-degree product threshold value as well as the importance of all shortest links between two nodes in the directed graph with a set link importance threshold value in sequence to obtain nodes to be optimized in a topological structure, and optimizing the nodes to be optimized. Compared with the prior art, the method has the advantages that the importance of each node is distinguished through introduction of the generalized degrees, and the degree or betweenness of each node as well as the importance of the nodes and links in the topological structure are considered, so that the whole topological structure can be optimized more accurately and comprehensively.

The invention relates to a method for processing a medical image. The method comprises the following advantages: obtaining a tomogram of the medical image; drafting a first ROI and a second ROI on the tomogram; and performing overlapping processing on the first ROI and the second ROI so as to enable the portions, which are corresponding to a continuous tissue structure, on first ROI and the second ROI to be connected together. The invention also relates to an apparatus for processing a medical image.

The invention provides a pipeline anomaly classification method based on middle-level features, which relates to the field of pipeline nondestructive detection and data mining. The method comprises the following steps of 1 preprocessing the pipeline magnetic flux leakage signal; 2 acquiring a magnetic flux leakage data sample set; 3 generating dominant characteristics of magnetic flux leakage datasample; 4 generating that middle layer characteristic of the magnetic flux leakage data sample based on the BOW model, calculating the difference characteristic vector for each sample circle frame; classifying the clustering difference eigenvector set by K-Means clustering to get k visual words; counting the frequency of each visual word in each sample, and obtaining the middle feature vector ofeach sample; 5 based on a feature fusion algorithm of joint sparse representation, fusing the dominant feature and middle feature of samples to form a joint sparse matrix and classifying the samples by using classification discriminant function. The method of the invention solves the technical problems of low accuracy of feature extraction and classification of pipeline abnormality and undesirabledetection effect in the prior art.

The invention discloses a power grid state estimation and assessment method and system. According to the power grid state estimation and assessment method, the IEC61970 standard, the SVG standard and the technology are applied to a chart-module maintenance-free process for state estimation and assessment, state estimation and pretreatment before assessment are carried out on SCADA data and reactive power optimization results, state estimation and assessment are carried out on the SCADA data and the reactive power optimization results in an AVC system, and state estimation and assessment results are displayed in a multi-dimensional and visual mode. By means of the technical scheme of the power grid state estimation and assessment method and system, the actual conditions of the state of a power grid can be better reflected.

The invention discloses a blood glucose analysis system based on the APP technology and the cloud computing technology. The blood glucose analysis system is characterized by comprising an App user register log-in module (1), an App blood glucose data collection module (2), an App positioning module (3), an App data storage module (4), an App blood glucose input tracking module (5), a cloud terminal analysis module (6) and a cloud terminal blood glucose test paper information maintenance module (7). A color generation reaction zone of a piece of blood glucose test paper and standard color spectra are captured through a camera, operated through the App technology, in an intelligent terminal device, comparison between the color generation reaction zone of the piece of blood glucose test paper and the standard color spectra is carried out by utilizing the computing power of the intelligent terminal device or cloud terminal computing to obtain blood glucose data, meanwhile, the data are stored into a cloud terminal database so as to track blood glucose changes of a user at any time, and the user is reminded. The blood glucose analysis system based on the APP technology and the cloud computing technology has the advantages that different test paper types are registered at the cloud terminal, a test is completed through the matching of test paper codes and cloud terminal codes, and the compatibility problem of the test paper for the test is well solved.

The invention provides a workpiece machining error analysis method based on installation error extraction and correction. This method is based on the four-axis measurement platform, and its mathematical model is established according to the workpiece parameters; the workpiece measurement data is collected by the path planning of follow-up trajectory; obtaining the installation error of the workpiece installation datum relative to the rotating shaft of the measuring platform, analyze and obtain the installation error matrix of the workpiece based on the principle of coordinate change, and quantify the installation error; the measurement data collected in the machine coordinate system are transformed into the workpiece coordinate system after the installation error is compensated, and the installation error is corrected. And eliminates system error by optimal matching with mathematical model; the error analysis is carried out by using the matched data, so as to improve the accuracy of error analysis.

The invention discloses a centrifugal model test device and method for simulating reservoir bank slope instability induced by water level fluctuations. A reservoir water level simulation area is formed between the near-water side of a slope and the inner wall of a model box, a water inlet is formed in the top wall of the model box of the reservoir water level simulation area, an overflow port anda water outlet are sequentially formed in the side wall of the model box of the reservoir water level simulation area from top to bottom, and an electromagnetic valve A is arranged at the water outlet; and a triangular support is arranged between the downstream side of the slope and the inner wall of the model box, the bottom edge of the triangular support is supported on a support, an undergroundwater level simulation area is formed between the downstream side of the slope and the inner wall of the model box, a communicating pipe is fixedly connected to the support and communicates with thereservoir water level simulation area and the underground water level simulation area, and a micro pressure type water level sensor is arranged in the slope. The centrifugal model test device and themethod can simulate reservoir water level elevation, fluctuation speeds and stable repose angles, can guarantee that the test result can truly reflect the deformation and stability conditions of the actual reservoir bank slope, and have good reference significance for the slope maintenance and reinforcement technology.

The invention relates to an unsaturated soil nonlinear strength enveloping shell model and belongs to the technical field of soil mechanics. At present, a shearing strength model widely applied in the unsaturated soil mechanics field is an Mohr-Coulomb destruction enveloping surface (plane) model proposed by Fredlund, but an application range of the plane model is relatively small, and a calculation error of corresponding soil body shearing strength is relatively large. The unsaturated soil nonlinear strength enveloping shell model has the key points of the technical scheme that an intersecting line of an enveloping shell (4) and a plane where a tau axis (3) and a (sigma-ua) axis locate satisfies a relationship expression: tau=c0[1+(sigma-ua) / sigma*t]1 / m, wherein c0 is soil body initial cohesive force, sigma*t is soil body tensile strength, and m is a parameter of a control strength envelope curvature. A projection of an arbitrary curve, parallel to a plane where a tau axis (3) and a (ua-uw) axis (2) locate, on the enveloping shell (4) on the plane satisfies the following relationship expresssion which is described in the description. The unsaturated soil nonlinear strength enveloping shell model can be used for more accurately calculating the soil body shearing strength.

The invention particularly relates to a data optimization method based on normal distribution. According to the data optimization method based on normal distribution, data information is collected, and the collected data information is converted into numerical values to be stored in a database for standby application; checking the consistency of the data, and processing invalid values and missing values; using the cleaned data as a variable x, obtaining a normal distribution curve f (x) of the variable x according to a probability density function of normal distribution, setting an area enclosed by the normal distribution curve and an x axis as 1, and obtaining an optimal numerical value x0 through an inverse function of a normal distribution accumulation density function according to the proportion A of the preferred data in all the data. According to the data optimization method based on normal distribution, the dispersion degree and the distribution condition of the data are comprehensively considered, so that the problem of unfairness easily occurring in a conventional optimization strategy is avoided, a data optimization result is more reasonable, the actual condition of global data can be better reflected, and the accuracy of data optimization is improved.

The invention provides a method for classifying rock mass quality through normal distribution fitting rock mass wave velocities. The method comprises the following steps of (1) ranking measured rock mass wave velocity data from small to large, counting the number of the wave velocity data, and normalizing wave velocity data probabilities; (2) utilizing a normal distribution probability density function under a least square method for fitting the wave velocity data with the probabilities being normalized, and obtaining a rock mass wave velocity data model function; (3) utilizing the characteristic that a normal distribution probability density function f (x, mu, sigma) curve is an inflection point at a part with x being equal to mu+ / -sigma, adopting x being equal to mu i+ / -sigma i as a rock mass classification standard value in a rock mass wave velocity data model function F (x), and utilizing an expected value and a standard deviation in the rock mass wave velocity data model function F (x) for carrying out rock mass classification. According to the method provided by the invention, the rock mass quality is classified by utilizing the normal distributionprobability density function in statistics according to the work arearock masswave velocity values, so that the workload of a field test at a construction site can be reduced, and the work efficiency is remarkably improved.

The invention relates to a method for determining a stopping sight distance in a plane-curve small-radius spiral tunnel and a method for widening a tunnel section on the premise of meeting a safe stopping sight distance, in particular to a method for determining a stopping sight distance in a plane-curve small-radius spiral tunnel in a mountainous area and widening the tunnel section. By correcting the conventional method for determining the stopping sight distance in a tunnel, the traveling safety is enhanced. Meanwhile, a method for widening the tunnel section according to the stopping sight distance determined with the method is provided, so that a satisfactory stopping sight distance is obtained.

The embodiment of the invention discloses a network coverage diagnosis model construction method and a network coverage diagnosis method and device, and relates to the field of communication. The problems that in the prior art, time and labor are consumed, the real-time performance is poor, and it is difficult to accurately reflect the actual situation of network coverage can be solved. The methodcomprises the following steps: slicing a determined measurement report (MR) stereogram of each cell in at least one cell in a historical time period according to a preset two-dimensional slice imageindex to generate a preset number of two-dimensional slice images; acquiring a network coverage performance label of each two-dimensional slice image according to a preset two-dimensional slice imageindex; and training the preset deep learning model according to the target preset number of preset two-dimensional slice images of all cells and the corresponding network coverage conditions to generate a network coverage diagnosis model corresponding to the preset two-dimensional slice image indexes.

The invention relates to the technical field of medical examination aids, and also discloses a novel simulation load inspection bed frame, comprising a bottom plate, wherein the outer edge of the bottom plate is wrapped with a side frame, a gap is left between one end of the bottom plate and the side frame, sliding rails are arranged on the side frames on both sides of the gap, and a baffle platelocated at the gap is fixedly connected in the sliding rails through a clamp block sliding reciprocally. As the novel simulate weight-bearing inspection bed frame, the length and width can be adjustedaccording to the actual situation of the examinee. The invention ensures the uniformity and operability of the force, and the purpose of fine adjustment can be achieved by using the threaded connection conducting threaded rod, the stretching rod and the transmission rod, which ensure that the invention is more suitable for different persons to be inspected, and the shoulder stopper which can moveleft and right can also avoid the foreign body feeling of the shoulder and improve the inspection precision.

The invention provides a construction method and application of a malignant schwannoma xenograft mouse model. The method comprises the steps of firstly, collecting a tumor tissue mass of a malignant schwannoma patient, and then conducting subcutaneous xenograft of the fresh tumor tissue mass of the patient into the body of an immunodeficient mouse under sterile conditions, wherein in the subcutaneous xenograft, the immunodeficient mouse at the age of 2-6 weeks is selected, the gender of the mouse is consistent with that of the patient, the collected fresh tumor tissue mass of the patient is soaked in a sterile incubation solution containing fetal bovine serum, the mouse is fixed after anesthesia, the tumor tissue mass of the patient is implanted into the subcutaneous part of the mouse, anincision is sutured, and the mouse is bred to make the tumor in the body of the mouse grow. The method also involves the orthotopic xenograft of the fresh tumor tissue mass of the patient into the body of the immunodeficient mouse. By means of the method, xenograft mice are used for replacing clinical patients for screening different combination drugs, the most suitable drugs are selected accordingly, the effectiveness is greatly improved, and the side effects of the drugs are greatly reduced.

The invention discloses a lightning arrester live detection method based on primary phase angle measurement. The method comprises the following steps: connecting a discharge counter or a resistor in series at a grounding end of a metal oxide lightning arrester, and connecting a power frequency parallel resonance filter circuit in parallel at the two ends; applying a power grid operation voltage to a series circuit through an operation bus; collecting a voltage phase angle and a power grid voltage phase angle of the grounding end of the lightning arrester on the metal oxide lightning arrester by adopting a phase collector to obtain a phase angle difference so as to obtain a phase angle of the lightning arrester; synchronously sending the voltage phase angles acquired at the two ends of the metal oxide arrester to a detection host respectively; using a current transformer to obtain an operation leakage current flowing through the metal oxide lightning arrester, combining the operation leakage current with the phase angle of the lightning arrester, and obtaining a resistive current flowing through the lightning arrester in an operation state through vector decomposition calculation; and judging the performance state of the lightning arrester through the resistive current. The phase angle of the grounding end of the lightning arrester is collected through the power frequency parallel resonance filter circuit, and the measurement precision of the phase angle of the lightning arrester is effectively improved.

The invention discloses a stress safety inspection scheme for the center diaphragm structure of a shallow-buried ultra-large-span tunnel. The scheme comprises the steps of: establishing a pilot upperstep center diaphragm mechanical model; calculating the unit displacement and load displacement of the skewbacks of a side wall steel frame and the center diaphragm; calculating the displacement of the skewbacks of the steel frame of the pilot upper step mechanical model; calculating displacement generated in the direction of a structural internal force; establishing a side wall steel frame-centerdiaphragm structure displacement coordination equation; calculating the structural internal force; and check and inspecting stress safety; and other steps. According to the stress safety inspection scheme of the invention, on the basis of the specific conditions of a support and the center diaphragm structure during the primary stage of the construction of the ultra-large-span tunnel, a supporting system is equivalent to a three-fold statically indeterminate hingeless arch-beam rigid fixed connection structure with a movable seat; a pilot upper step side wall steel frame-center diaphragm common bearing displacement mechanical calculation analysis model is established, so that the actual condition of the construction of the tunnel is accurately reflected.