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79results about How to "Reflect rationality" patented technology
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Charging scheduling system based on electric vehicle charging priority and method thereof
InactiveCN104933466ARich data typesReasonable solutionReservationsForecastingEngineeringElectric vehicle
The invention discloses a charging scheduling system based on an electric vehicle charging priority and a method thereof. The system comprises a child node apparatus and an anchor node device. The sub-node apparatus is installed on a child node charging pile and is used for collecting charging pile data. The anchor node device is installed on an anchor node charging pile and is used for data integration and processing, executing a charging scheduling algorithm, processing user feedback information and carrying out charging scheduling. According to a position of an anchor node, area division is performed. One anchor node manages several child nodes. Data collection and operation efficiency are increased. By using the charging scheduling algorithm, according to information of an electric vehicle and the charging pile, charging priority degree assessments are performed twice; global comparison is performed on a final priority degree assessment value; relative priorities of the electric vehicle on each reachable charging pile are determined so that global solution is realized. By using the system and the method in the invention, a utilization rate of a charging pile resource and charging efficiency of the electric vehicle are increased; and charging system performance of the electric vehicle is improved.
Owner:WUHAN UNIV +1
Multi-time scale electric vehicle clustering schedulable capacity prediction method
ActiveCN106203720AStrong data supportGuaranteed use requirementsCharging stationsForecastingData setCorrelation analysis
The invention discloses a multi-time scale electric vehicle clustering schedulable capacity prediction method. The method is characterized in that the method includes the following steps: establishing a real-time electric vehicle clustering schedulable capacity prediction model on a distributive parallel big data processing platform, using real-time state data, acquiring the result of real-time electric vehicle clustering schedulable capacity prediction based on the prediction model; based on the result of real-time electric vehicle clustering schedulable capacity prediction and feature data of symptom feature attributes, performing correlation analysis, extracting the feature data and establishing a data set, establishing the parallel big data algorithm on the distributive parallel big data processing platform, using the big data algorithm and the data set to establish the current electric vehicle clustering schedulable capacity prediction model. According to the invention, the method brings the advantages of big data parallel processing into full play, can provide strong data support for grid multi-time scale scheduling, electric vehicle charging and discharging control and gird reliability.
Owner:HEFEI UNIV OF TECH
GIS traffic model-based method of optimization analysis on wireless network
InactiveCN102227148AEvaluate, optimize, analyze, easy and intuitiveReflect rationalityNetwork planningWireless mesh networkResource utilization
The invention relates to a GIS traffic model-based method of an optimization analysis on a wireless network. The method comprises the following steps: preparing data; measuring an area of a wireless coverage area according to GIS, wherein the area is set by taking a wireless cell as a basic point; calculating a traffic of a per unit area of the set area and a traffic of a per unit area of the wireless cell; calculating a resource utilization rate of the set area and a resource utilization rate of the wireless cell; expressing a total traffic, a total resource utilization rate, traffics of services of various types and resource utilization rates of services of various types of the wireless cell on an electronic map with different layers; and classifying sizes of traffics and resource utilization rates as well as setting layer levels and corresponding colors for presentation in a same layer. Imbalance between services can be presented by contrasts of different layers. According to the invention, characteristics of traffic behaviors of users of the cell can be obtained; on the basis of presentation of different layers on a GIS platform, a comprehensive analysis is made by combining data including interference, hardware failure, and parameter, so that an optimized solution scheme of a wireless network is provided.
Owner:西安方诚通讯技术服务有限公司
Electric car charging load distribution method based on user will and out-going rule
ActiveCN103903090AReduce the number of charging starts and stopsReflect rationalityResourcesOriginal dataWeight coefficient
The invention discloses an electric car charging load distribution method based on user will and the out-going rule. The method comprises the steps of obtaining ideal charging power of each time frame according to input original data for distributing electric car charging loads, determining weighting coefficients according to the collected electric car data and setting input by users, when the current actual maximum charging power of an electric car meets a system scheduling command, conducting traversal on information of each electric car user, accepting scheduling, participating in the optimization process, building a mathematical model for charging load distribution, and outputting the result. The frequency of starting and stopping charging of the electric cars can be reduced while the charging requirement is completed, on the premise of respecting the electric car users, the charging load distribution strategy in each time frame is closely connected with the characteristics of the electric cars, and the charging order of the electric cars can be fairly and reasonably arranged.
Owner:SOUTHEAST UNIV
Coating sunshade composite material with high reflectivity and preparation method thereof
ActiveCN102582170AImprove reflective effectImprove reflectivitySynthetic resin layered productsReflecting/signal paintsPolyesterIsolation effect
The invention provides a coating sunshade composite material with high reflectivity. The composite material comprises a polyester base material layer, wherein the two side surfaces of the polyester base material layer are coated with a polyvinyl chloride (PVC) thin film layer respectively; a reflecting layer is coated on one side surface of each PVC thin film layer and comprises a PVC base coating layer and a PVC top coating layer; and the aperture rate of the composite material is 2 to 6 percent. The invention also provides a preparation method for the composite material. The composite material has good sunshade and heat-isolation effects.
Owner:NINGBO XIANFENG NEW MATERIAL
Risk-considered urban power network operation security assessment method
InactiveCN105205571AIncrease uncertaintyComprehensively evaluate the level of operational safetyForecastingRisk indicatorLoad following power plant
The invention discloses a risk-considered urban power network operation security assessment method. The risk-considered urban power network operation security assessment method comprises the following steps: analyzing an urban power network operating risk source which is divided into two types, namely a small disturbance risk source including both load fluctuation and distributed power supply output fluctuation, and a fault risk source including both internal network faults and external network faults; as for the two risk sources, respectively building static security risk index models and transient security risk index models to assess the urban power network operating safety level. A traditional deterministic security assessment method only attaches importance to the most serious and credible accidents, so that the result is conservative. A probabilistic assessment method overcomes the defect of the deterministic assessment method, and additionally considers the uncertain factor (probability of occurrence). The risk-considered urban power network operation security assessment method is a modification and improvement of the original probabilistic assessment method and can quantify the accident results.
Owner:HOHAI UNIV
Atmosphere pollution control electricity utilization data analysis platform based on big data sharing
ActiveCN107368894AGood ductilityAchieving Jerry TimingForecastingParticle suspension analysisControl measureAnalysis models
The invention discloses an atmosphere pollution control electricity utilization data analysis platform based on big data sharing. The platform comprises an electricity utilization information acquisition unit, a transmission module and a system main station. The electricity utilization information acquisition unit comprises a metering terminal device and an acquisition storage device, which are installed in the place. The system main station comprises a server group and a data analysis center and is connected with the electricity utilization information acquisition unit and the transmission module. The data analysis center comprises a big data sharing analysis model based on the BP neural network. According to the invention, based on an electricity utilization information acquisition system, by taking the big data analysis and prediction as a technical means, remote monitoring of enterprises related to the atmosphere pollution and industrial electricity utilization data of each place is achieved; and strong support is provided for formulation of pollution management and control measures.
Owner:国网河南省电力公司营销服务中心 +3
Comprehensive tripping monitoring operating system
ActiveCN102128023ATimely monitoringAccurate monitoringAutomatic control for drillingOperational systemProgrammable logic controller
The invention relates to a comprehensive tripping monitoring operating system comprising a touch screen industrial computer and a PLC (Programmable Logic Controller) as a control system and a computing processing system. An acquisition system is formed by various sensors, and an executive operating system is formed by various controllers. The comprehensive tripping monitoring operating system is characterized in that an integrated intelligent program design is adopted and combined with qualitative analysis and quantitative analysis to integrally and comprehensively solve the problems of well kick and well leakage monitoring, single upright post timing counting, intelligent grouting and prevention of a runner wagon from knocking an upper overhead travelling crane and smashing a lower platform in the tripping process.
Owner:PUYANG BAIFU REIDE PETROLEUM SCI & TECH CO LTD
Method for acquiring arrival interval reliability of urban bus
InactiveCN102737500AImprove accuracyReflect rationalityRoad vehicles traffic controlDependabilityImproved method
Aiming at the conventional bus lines of which the bus dispatch frequency is less than 30 minutes, the invention provides a method for acquiring the arrival interval reliability of an urban bus. In a process of defining the arrival interval reliability of the urban bus, various definition features of the conventional reliability are fused; the running reliability of a station bus under different arrival intervals is determined by using a segment calculation method; reliability weight values of different buses at different stations on different lines are determined by planning the arrival interval, the flow and the like; and the bus arrival interval reliability index calculation method is provided based on a station layer, a line layer and a network layer. By the improved method for acquiring the arrival interval reliability, the shortcomings of the conventional method for acquiring the index of the arrival interval reliability can be well overcome; the method is easy to operate; the calculation result is rational and can reflect the actual running characteristic of the bus; and the method is relatively high in practical value.
Owner:SOUTHEAST UNIV
Double-layer coordination optimization method based on online intelligent household electrical appliance demand response potential
InactiveCN107490960AReflect rationalityReflect fairnessAdaptive controlSystem requirementsResponse Frequency
The invention discloses a double-layer coordination optimization method based on online intelligent household electrical appliance demand response potential. Participation objects comprise a scheduling center, load aggregators, intelligent household electrical appliances and a user. The optimization method comprises steps that upper-level and lower-level strategies are included, for the upper-level strategy, firstly, demand response potential states of the intelligent household electrical appliances are determined according to operation characteristics of the intelligent household electrical appliances, present work states and an comfort level interval set by the user, and total demand response potential of the load aggregators is further acquired; limited power required by a system is distributed by the scheduling center to each load aggregator according to the proportions of the total demand response potential of each load aggregator to sum of demand response potential of all the load aggregators. For the lower-level strategy, the comfort level of the intelligent household electrical appliances and response frequency are considered, and the limited power is fairly and reasonably distributed to each household electrical appliance by each load aggregator. The method is advantaged in that fairness among the load aggregators is guaranteed, and demand response requirements of the scheduling center can be effectively satisfied.
Owner:SOUTHEAST UNIV
A high-speed rail path planning and designing method based on a maklink graph multi-node link
The invention relates to the technical field of iron path planning. The purposes that modeling can be conducted according to different complex geographical environments, the number of sub-optimizationpaths is increased by flexibly increasing the number of link nodes, an appropriate intelligent optimization algorithm is selected for fusion, the optimization precision of the optimal path is improved, and the construction energy and cost of the high-speed rail line are saved to the maximum degree are achieved. According to the method, in maklink graph theory planning, a graph is divided into a plurality of graph sets; The single node number of the dijkstra algorithm can reduce the precision of the sub-optimization path. However, with the increase of the number of nodes, the iteration calculation amount and redundancy of the algorithm can be increased. Therefore, the link line length between the actual obstacle areas can be adjusted; The method comprises the following steps: automaticallyconfiguring a proper number of nodes, planning a sub-optimization path in a balanced manner, improving the precision of the sub-optimization path, considering the optimization efficiency, carrying out intelligent optimization on the high-precision sub-optimization path after algorithm fusion, determining an optimal construction path for high-speed rail line construction, and maximally reducing the construction resource and cost of the high-speed rail line.
Owner:安徽唯诗杨信息科技有限公司
Production technology of PTT fiber seamless knitted underwear with high wicking function
ActiveCN103361867AHigh moisture permeabilityStrong moisture wickingWeft knittingDyeing processYarnPolytrimethylene terephthalate
The invention belongs to the field of functional knitted product production, and relates to a production technology of PTT (Polytrimethylene Terephthalate) fiber knitted seamless underwear with a high wicking function. The production technology comprises the steps that a PTT fiber with the crossed cross section and a bamboo carbon polyester fiber are taken as raw materials; two rough yarns and a double rough yarn feeding technology are adopted to manufacture a blended yarn; the blended yarn is knitted by a seamless knitting machine to form seamless knitted underwear grey cloth; and the seamless knitted underwear grey cloth is subjected to scouring and bleaching pretreatment, then dyeing treatment, and dehydration, drying, afterfinish and shaping treatment to from a PTT fiber seamless knitted underwear product with the high wicking function. The PTT fiber seamless knitted underwear with the high wicking function has the significant characteristics of moisture absorption, wicking, easiness in curing, bacteriostasis and the like; particularly, a wicking speed, the fastness to washing, the dimensional stability and the like of the product reach design requirements very well; and the design rationality of the product, the practicability of the product, the scientific rationality of the production technology and the significance of economic and social benefits are reflected.
Owner:浙江芬雪琳针织服饰有限公司
Suspension type steel concrete residence structure
InactiveCN1470720AImprove seismic performanceReduce spanBuilding constructionsReinforced concreteApartment house
The present invention relates to a suspended reinforced concrete homebuilding structure, said structure main body is a large-bay reinforced concrete special-shaped column frame or special-shaped column puncheon shea wall structure, in which floor has reinforced concrete floor and steel structure floor, the steel structure floor is suspended and connected under the reinforced concrete floor by means of steel pipe hanger rod. Said structure is applicable to skip-floor apartment house, can raise building clearance height, can reduce structure self-weight and can raise its seismic behavior, so that it is a new type homebuilding structure system.
Owner:JIANKE CONSTRUCTINO DESIGN INST SHANGHAI
Method for evaluating genetic relationship DNA (deoxyribonucleic acid) molecules of mulberry variety
ActiveCN103898216AImprove accuracyAccurate identificationMicrobiological testing/measurementBiotechnologyGenetic diversity
The invention discloses a method for evaluating genetic relationship DNA (deoxyribonucleic acid) molecules of a mulberry variety. The method comprises the steps of (1) system development analysis of the mulberry variety: 1) material selection; 2) screening of a contrast sequence; 3) extraction of mulberry genome DNA and detection of purity and concentration; 4) PCR (polymerase chain reaction) amplification; 5) PCR detection; 6) PCR sequencing; 7) sequence splicing and comparison, and identification of an evolutionary relationship; (2) genetic relationship analysis of the mulberry variety. According to the method disclosed by the invention, the system development analysis is firstly performed, materials are reasonably selected from worldwide mulberry varieties and variants, and then genetic diversity analysis of mulberry variety populations is performed to further determine the genetic relationship, so that the accuracy and repeatability of evaluating the genetic relationship are significantly improved by using the two-step analysis method, and a great promotion effect is achieved for protection of mulberry variety resources, mulberry variety fingerprint identification, molecular aided breeding and variety resource development and utilization.
Owner:SOUTHWEST UNIV +2
Electric vehicle charging load distribution method
PendingCN112418734AReduce the number of charging starts and stopsMaintain service lifeResourcesAutomotive engineeringElectrical battery
The invention discloses an electric vehicle charging load distribution method, and the method comprises the steps: formulating an overall ordered charging plan of an electric vehicle according to thepower utilization characteristics of a non-flexible load and the commuting rule of the electric vehicle; furthermore, the travel habit, charging preference, mileage anxiety and other information of each user are comprehensively considered, and the charging load is fairly and reasonably distributed among the electric vehicles. When the charging requirement is met, the starting frequency of the charging process of the electric vehicle can be reduced, and the service life of the battery is maintained; under the condition of respecting the autonomous response of an electric vehicle user, the charging load distribution strategy in each time period is closely related to the inherent parameters and power utilization characteristics of the electric vehicle, and the orderly charging load of the electric vehicle can be reasonably regulated and controlled.
Owner:SHENZHEN POWER SUPPLY BUREAU
Hazardous chemical transportation safety real-time monitoring and early warning management system based on big data
InactiveCN111720747APrediction of explosion phenomena in advanceEnsure safetyPipeline systemsTank truckProcess engineering
The invention discloses a hazardous chemical transportation safety real-time monitoring and early warning management system based on big data. The hazardous chemical transportation safety real-time monitoring and early warning management system comprises an oilhole leakage detection module, a temperature collecting treatment module, a pressure detecting treatment module, a vibration detecting treatment module, a leakage grade analysing module, an explosion coefficient analysing module, a storage database, a central server, a pre-warning module, and a monitoring display terminal. The petroleumgas leakage concentration of an oil inlet and an oil outlet of an oil tank are monitored in real time, besides, the inside and outside temperature, the inside and outside pressure and the vibration velocity of the oil tank are detected, and through integrating of the factors, the explosion coefficients of an oil car are analysed; according to the explosion coefficients and security explosion coefficient thresholds of a pipeline, contrasting is performed, and warning of different levels is performed, so that effective monitoring on the safe handling of the oil car can be realized, the explosionphenomenon of an oil tank can be predicted in advance, the safety accident caused by explosion of the oil tank can be reduced to the maximum extent, and the safety of the oil tank in the transportation process can be guaranteed effectively.
Owner:詹晨
Processing method of medicinal material processed ginger slices and product
InactiveCN109224044AReduce total content lossReflect rationalityAntipyreticAnalgesicsComputer scienceRiver sand
The invention discloses a processing method of medicinal material processed ginger slices and a product. The processing method comprises the following steps: a step of hitting the skin, a step of frying the river sand, a step of sanding, a step of sieving, that is, a ginger piece. The invention adopts the step of smashing the skin before being processed, which is a key step for the trait of the product to reach the Pharmacopoeia standard. By adjusting the grain size of the processed sand and processing the parameters of the scalding, the process effectively reduces the total content loss of the leaching material and the 6-saponin, reflecting the rationality of the process.
Owner:KANGMEI PHARMA
Site selection and sizing method for electric vehicle charging station
PendingCN114297809AReflect rationalityImprove the ability to jump out of local optimal solutionsGeometric CADDesign optimisation/simulationCharging stationReal-time computing
The invention provides an electric vehicle charging station locating and sizing method comprising the following steps: analyzing and processing the initial traffic flow of each road node, obtaining the traffic flow information of each traffic node by using a flow correction coefficient to obtain the charging demand, and generating an urban road CAD drawing according to the regional division of a planning area; calculating the distance from each node to the alternative charging station, and estimating the maximum number of established stations and the minimum number of established stations according to the maximum service capability, the minimum service capability and the charging demand of the charging station; according to the determined charging station number range, the service range and the charging station grade, randomly selecting the charging station according to the site of the alternative station; taking the sum of the construction cost, the operation and maintenance cost, the network loss cost and the path loss cost as a total objective function, and taking the charging demand of the electric vehicle, the number of charging piles, the capacity and the planning area power as constraint conditions to construct a charging station locating and sizing model; and in combination with the traffic flow and the charging demand quantity of each traffic node, an improved whale optimization algorithm is adopted to solve the charging station locating and sizing model.
Owner:SHANGHAI DIANJI UNIV
Collaborative manufacturing system of functions such as online editing, toning, packaging, subtitles and the like
PendingCN111698572AEasy to sendImprove processing speedSelective content distributionSubtitleSoftware engineering
The invention discloses a collaborative manufacturing system of functions such as online editing, toning, packaging, subtitles and the like. The system comprises a client, a server, a first storage device, a receiver, a database and a second storage device, and an administrator login module, an editor login module, a toner login module, a packager login module, a captionist login module and an other personnel login module are arranged in the client. According to the system, the client is connected with the server, and a video can be segmented through a video segmentation module of the video segmentation system; the small video segments are sent to an editor in sequence and then are sent in order, and the video is segmented into small sections of small videos, so that the processing speed and the transmission speed of a worker can be increased, the worker can conveniently send the video to the worker in the next step in time after completing the work of the worker, and the purpose of accelerating the manufacturing speed through cooperative manufacturing is achieved.
Owner:郑州上航科技有限公司
Process for treating dyeing sludge through high-pressure membrane separation
InactiveCN103708699ASolve the problem of dehydration and dryingAchieve reductionSludge treatment by de-watering/drying/thickeningIncinerator apparatusSludgeWastewater
Owner:HUAFANG
Construction bulldozer with clearing function
InactiveCN110158684AGuaranteed cleaning effectEasy to useMechanical machines/dredgersHydraulic cylinderReciprocating motion
The invention discloses a construction bulldozer with a clearing function. The construction bulldozer comprises a bulldozer body and a bulldozing bucket, wherein a first collecting box, a first hydraulic cylinder, a second hydraulic cylinder and a second collecting box are sequentially and fixedly connected with the reverse side of the bulldozing bucket from top to bottom; the first collecting boxand the second hydraulic cylinder are positioned on the same side; the second hydraulic cylinder and the second collecting box are positioned on the same side; and a first baffle plate is welded withone side of the interior of the obverse side of the bulldozing bucket. The construction bulldozer with the clearing function has the beneficial effects that two U-shaped push rods are driven throughthe two hydraulic cylinders to move in a reciprocating manner, two fixing columns are driven to move, and then two clearing scrapers are driven to move along the inner wall of the bulldozing bucket, so that clay on the inner wall of the bulldozing bucket can be cleared through the two clearing scrapers, and the purposes of guaranteeing the convenient use and the good clay clearing effect can be achieved; and furthermore, the above clearing devices are fixed on the bulldozing bucket, so that the clay can be cleared without stopping the bulldozer and the working efficiency can be improved.
Owner:张荣
Clinical knowledge base system based on pathophysiological path
PendingCN107919171AReflect rationalityEmbody individualityDatabase updatingMedical practises/guidelinesPersonalizationPrivate knowledge
The invention relates to the field of medical information, and especially relates to a clinical knowledge base system based on a pathophysiological path. The system comprises a public knowledge base unit which is used for managing a public knowledge base; a private knowledge base unit which is connected with the public knowledge base unit and is used for managing a private knowledge base; and a knowledge base engine unit which is connected with the private knowledge base unit, triggers the operation according to a triggering mode, and outputs a knowledge conclusion. The system takes the pathophysiological changes as the basis, and reflects the reasonability and individuation of the disease diagnosis and treatment. A semi-open and semi-close mode that the public knowledge base and the private knowledge base coexist meets the common demands of a clinical knowledge base and the personalized demands of a medical unit. Various types of triggering modes provide convenience for medical workers in flexibly using the system. To sum up, the system facilitates the standardization of the diagnosis behaviors of a hospital and medical workers and improves the medical quality.
Owner:SICHUAN SMART MEDICINE TECH CO LTD
Single-channel module of airplane distributed power grid structure, power generation system and control method
PendingCN112510803AReflect rationalityDC voltage stabilityBatteries circuit arrangementsDc source parallel operationFuel cellsElectric capacity
The invention discloses a single-channel module of an airplane distributed power grid structure, a power generation system and a control method. The single-channel module comprises a generator system,a fuel cell system, a high-voltage direct-current storage battery system, a super capacitor system and a direct-current bus bar. The generator system, the fuel cell system, the high-voltage direct-current storage battery system and the super-capacitor system are separately connected to the direct-current bus bar, and the direct-current bus bar is provided with ports connected with other single-channel modules and a load. The power grid structure of an airplane distributed power generation system comprises a plurality of single-channel modules, and the single-channel modules are connected through the ports provided by bus bars of the single-channel modules. According to the aircraft distributed power generation system structure and the control method thereof provided by the invention, thestability and flexibility of the system can be improved.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Linear motor performance test method
PendingCN114295404AReflect rationalityGood value for moneyStructural/machines measurementApparatus for force/torque/work measurementElectric machineryEngineering
The invention relates to the technical field of performance testing, in particular to a linear motor performance testing method. The test method specifically comprises the following steps: respectively connecting three phases U / V / W of the linear motor into three signal input ports of an oscilloscope, controlling a rotary servo shaft to move, dragging the linear motor to run at a constant speed, obtaining a reaction potential oscillogram of the linear motor, and calculating to obtain a line peak value back electromotive force constant and a thrust constant; in the torque mode, the motion direction of the linear motor is blocked by adopting a force sensor, corresponding locked-rotor force is measured in different current states, and a force constant, rated thrust and peak thrust are obtained; a laser interferometer is adopted to measure the positioning precision and the repeated positioning precision value of each section in the whole stroke under the no-load condition of the linear motor; a laser interferometer is adopted to measure position fluctuation and speed fluctuation of the linear motor in different states.
Owner:长沙一派直驱科技股份有限公司
Demand response method considering user real-time comfort and power grid load rate
InactiveCN110729728AIncrease load factorMeeting comfort needsAc network circuit arrangementsPower gridComputer science
The invention provides a demand response method considering user real-time comfort and a power grid load rate. Different from a passive control terminal in the traditional sense, the method considersa schedulable strategy of actively participating in response to improve the operation load rate of the power grid by integrating the will of a user. Firstly, household appliances of the user are classified, types of the intelligent household electrical appliances are determined, the comfort index of the user is calculated based on operation characteristics, a working state and the external environment information of the intelligent household electrical appliances, a power grid power scheduling limit value is set according to the power grid load rate improvement demand, and finally the comfortindex of the user is updated in real time to realize demand response control of the intelligent household electrical appliances. The method is advantaged in that the comfort level of the user is ensured, and the operation load rate of the power grid can be effectively improved.
Owner:NANJING INST OF TECH
Three-dimensional negative Poisson's ratio structure suitable for 3D printing
PendingCN113320141AImprove performanceTypical negative Poisson's ratio deformation characteristicsAdditive manufacturing apparatusAdditive manufacturing processesEngineeringMirror image
The invention provides a three-dimensional negative Poisson's ratio structure suitable for 3D printing. According to the structure, a spiral unit is formed by annularly arraying a spiral arm with the inner end as the center, the multiple spiral units are sequentially arranged on the plane, every two adjacent spiral units are arranged in a mirror image mode and fixedly connected, the spiral units of every two adjacent planar spiral structures are in one-to-one correspondence in the vertical direction and are arranged in a mirror image manner, and the outer ends of the spiral arms of every two vertically adjacent spiral units are in one-to-one correspondence and are connected through inclined rods. The technical scheme has the beneficial effects that the structure has high negative Poisson's ratio performance and is suitable for 3D printing, and in a compression experiment, the negative Poisson's ratio structure has typical negative Poisson's ratio deformation characteristics and typical bending-dominated mechanical response; and the negative Poisson's ratio structure has very stable platform stress in a relatively large compression strain interval, and does not have any sharp collapse and catastrophic damage, so that the reasonability of the design of the negative Poisson's ratio structure is embodied, and a rare opportunity is provided for designing a high-strain or anti-impact functional device.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)
Method for dynamically checking appointed area external network equivalent models in electric power systems
ActiveCN108830744AShort processReflect rationalityResourcesSpecial data processing applicationsCurrent electricTime mark
The invention relates to a method for dynamically checking appointed area external network equivalent models in electric power systems, and belongs to the technical field of electric power system scheduling automation. The method comprises the following steps of: firstly obtaining the current electric power system model, and splicing the electric power system model with an appointed area externalnetwork equivalent model according to a boundary configuration of an appointed area; periodically obtaining real-time tidal current data of the an electric power system, updating a spliced model section of the appointed area and adding a time mark to carry out storage; periodically monitoring the change of a boundary line of the appointed area, when the line changes, obtaining the spliced model section of the appointed area at the closest moment, simulating the change of the boundary line, calculating tidal current and comparing the tidal current with the real-time tidal current data of the electric power system so as to complete dynamic check of the appointed area external network equivalent model. According to the method, the check of area external network equivalent models is completedin power grids of superior scheduling areas, so that the flow of iteratively optimizing the appointed area external network equivalent models is shortened.
Owner:POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD +1
Railway dual-prevention mechanism management system
The invention discloses a railway dual-prevention mechanism management system, which comprises a client, a server, a database and a notification display device; the client is internally provided witha first-level login module, a second-level login module, a third-level login module and a fourth-level login module. According to the railway dual-prevention mechanism management system, a region division system, a feedback system, a danger degree rating division system and a data uploading system are arranged in a server; the location of a company can be divided into small areas; the small areasare distributed to each team to be managed; post workers can conveniently and quickly upload and report potential safety hazards of responsible points to superior leaders. The system can monitor a certain small area through the feedback system, prevents a post worker from forgetting or omitting the small area, can transmit data to the notification display device through the data uploading system,can facilitate the check of a manager, and achieves the purpose of facilitating the management.
Owner:河南楠嘉科技有限公司
Distributed user association method for guaranteeing user mobility and time delay requirement
ActiveCN113382426AGuaranteed experienceMeet minimum speed requirementsRadio transmissionHigh level techniquesEngineeringData transmission
The invention discloses a distributed user association method for guaranteeing user mobility and a time delay requirement, and belongs to the technical field of wireless communication. The invention provides a distributed user association method for solving the problem that the user experience quality is reduced due to connection interruption caused by user movement and large satellite-to-earth link propagation time delay in a satellite-earth fusion network. The method comprises establishing a user base station initial association set according to a base station coverage range, and dividing different associable base station subsets according to user mobility and user time delay requirements; based on the obtained base station association subsets, setting a signal-to-noise ratio threshold value according to the rain-snow-caused attenuation degree of the satellite-to-earth link, achieving the user transmission rate and maximization by using a distributed maximum demand algorithm under the limitation of the satellite return capacity, and achieving load balancing between the base stations using a matching algorithm under the condition that the minimum rate demand of the user is met. Through the provided distributed user association method, the data transmission rate is improved, the user experience is guaranteed, and the load balance between the base stations is realized.
Owner:CHONGQING UNIV OF POSTS & TELECOMM
Method, device and equipment for extracting data based on video production
PendingCN111723111AShorten the timeReduce workloadSpecial data processing applicationsDatabase design/maintainanceCollection systemEngineering
The invention discloses a method, a device and equipment for extracting data based on video production. The system comprises a user computer, a server, a database and a storage device, a client is installed in a user computer system, the client is in signal connection with the server, and a data collection system, a data classification system, a data screening system and a final confirmation system are installed in the server. According to the method, the device and the equipment for extracting data based on video production, the client is installed in a user computer system; a login module and an information recording module are arranged in the client to record user retrieval records; repeated keyword retrieval of a user is avoided, the time of the user is saved, multiple keyword retrieval modules are arranged in the data screening system, content meeting the requirement can be screened for the user, the workload of the user is reduced, and the purpose of convenient use is achieved.
Owner:河南易美云谷创业孵化器有限公司
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