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36results about How to "Intuitive description" patented technology

Visualized detection method for online abnormal movements of power distribution automation graph and model

The invention discloses a visualized detection method for online abnormal movements of a power distribution automation graph and model, comprising steps of using a topology model of a power distribution network red database in a power distribution automation master station to establish a memory topology of a primary device of the power distribution network, recording topology relations before the abnormal movement and after the abnormal movement, performing interaction with a GPMS system by the power distribution automation master station system to obtain an abnormal movement file, analyzing an SVG graph file to display on a man-machine interface, binding with corresponding topology model information by a primitive, performing verification on consistency of the graph and the model and using a color mark on the primitive according to the verification result, timely, fast and directly displaying the graph and model abnormal movement conditions to automation staff before a process of performing automation debugging, performing verification on consistency of the model topology, the graph and the model, and synchronizing an abnormal movement single condition to the GPMS system. The visualized detection method disclosed by the invention improves accuracy and timeliness of abnormal movements and greatly improves working efficiency of scheduling staff and automation staff.
Owner:STATE GRID FUJIAN ELECTRIC POWER CO LTD +2

Three-axis linkage contour error compensation control method for cylinder cam machining

The invention relates to a three-axis linkage contour error compensation control method for cylinder cam machining. The method carries out contour error calculation and compensation during an interpolation machining process according to the linkage of axis A, axis X and axis Y, and is characterized in that the method comprises the steps of in each sampling cycle detecting the actual location of the worktable of axis A, axis X and axis Y in a machine tool coordinate system; converting into a space rectangular coordinate system and approximating the distance between the actual cutter location point and the line connecting with the two closest interpolation points on the tool path of the cylindrical cam contour at contour errors; converting into the machine tool coordinate system to obtain the corresponding contour errors of axis A, axis X and axis Y; and introducing a scaling factor, acquiring the contour error compensation quantities through proportional control, separately stacking the contour error compensation quantities with the location control quantities of shaft A, shaft X and shaft Y to follow errors, and outputting to a servo actuator. The method provided by the invention has the advantages that during axis A, axis X and axis Y linkage machining contour error description is intuitive, calculation precision is high, and contour error compensation method is simple and effective.
Owner:SHANDONG UNIV OF TECH

Unmanned plane independent robust decision-making method based on scenario building

The invention discloses an unmanned plane independent robust decision-making method based on scenario building. The unmanned plane independent robust decision-making method based on scenario building is characterized by comprising the following steps that first, the decision variable of a Red unmanned plane and the decision variable of a Blue position in a battle field are defined; second, a scenario is built; third, an influence diagram is established by using an influence diagram modeling method; fourth, the expected utility value of each scenario centralized in scenario of each decision candidate action plan in decision candidate action plans of the Red unmanned plane is calculated; fifth, the Red unmanned plane makes robust decisions according to the expected utility value. The unmanned plane independent robust decision-making method based on scenario building can effectively solve the problem of weak independent decision making capacity in a complex battle field environment, the unmanned plane is made to be capable of making independent decision in various scenarios, accordingly, the independent decision making efficiency and the decision making effect of the unmanned plane are improved, optimal action scheme choosing is achieved, and the feasibility, the effectiveness and the safety of the decision-making scheme are guaranteed.
Owner:HEFEI UNIV OF TECH

Method for joint inversion of longitudinal wave impedance and transverse wave impedance by using prestack data of PP and PS waves

The invention discloses a method for joint inversion of longitudinal wave impedance and transverse wave impedance by using the prestack data of PP and PS waves. The method comprises the following steps of: acquiring time windows, trace windows and line windows, on a PP-wave section plane and a PS-wave section plane which are actually measured, of a reservoir to obtain PP-wave seismic records and PS-wave seismic records of all common depth point (CDP) ranges and all offset distances of the reservoir; processing each sampling time in the time windows [tpp1, tpp2] and [tps1, tps2] of a common middle point (CMP) gather or a common reflection point (CRP) gather of a PP-wave and a common conversion point (CCP) gather of a PS-wave of the CDP; obtaining a PP-wave seismic record of an approximate zero offset distance and an SS-wave seismic record of a zero offset distance in the time window at the CDP; and performing inversion on the PP-wave seismic record of the approximate zero offset distance and the SS-wave seismic record of the zero offset distance to obtain the longitudinal wave impedance Ip and the transverse wave impedance Is. By the method, the longitudinal wave impedance and the transverse wave impedance of the reservoir are inverted conveniently and rapidly; elastic parameters of the reservoir per se can be acquired stably; and the accuracy of the lithological and physical descriptions of the reservoir is improved.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Reliability distribution method and apparatus based on immune genetic optimization

InactiveCN105512726AGuaranteed continuationLow lifetime costGenetic algorithmsDistribution methodGenetic algorithm
The invention discloses a reliability distribution method and apparatus based on immune genetic optimization, and relates to the field of reliability distribution. The method comprises the following steps: eliminating devices with selected models and devices with determined reliability indexes, and then according to operation working conditions of residual devices, carrying out system reliability modeling; constructing full-life cost function and obtaining a function taking the system full-life cost as an object; and randomly generating initial population, screening antibodies in the population, operating adaptive intersection and variation operation of a genetic algorithm, next, operating an immunization algorithm, extracting a vaccine, vaccinating the antibodies, then classifying the antibodies with higher fitness into new-generation population, determining whether the new-generation population is convergent, if so, outputting a distribution result, and otherwise, returning the antibody screening step. According to the invention, minimization of full-life cost is taken as a distribution object, the immunization algorithm and the genetic algorithm are combined together in a distribution process, and the method and apparatus provided by the invention are applied to task reliability distribution of a complex system.
Owner:NO 719 RES INST CHINA SHIPBUILDING IND

Method for analyzing convection heat dissipation performance of both sides of rectangular heat dissipation plate with eccentric heat source

ActiveCN105260600AAccurate Quantitative CalculationTroubleshoot parsing difficultiesSpecial data processing applicationsEngineeringHeating power
The present invention relates to a method for analyzing convection heat dissipation performance of both sides of a rectangular heat dissipation plate with an eccentric heat source. The method comprises: dividing a heat source region into uniform grids and combining a heat loss matrix and a non-uniform thermal power matrix of the heat source region, to iteratively calculate surplus temperature iteration values of all nodes in the heat source region; after determining that iteration results are convergent by using a difference between an average value of the surplus temperature iteration results and an average value of last iteration results, collecting statistics on a local greatest value of the surplus temperatures in the heat source region; dividing upper and lower surfaces in a region without any heat source into grids, and calculating an average value of node surplus temperatures to obtain total convection heat dissipation power of the upper and lower surfaces in the region without any heat source; according to the local highest value of the surplus temperatures in the heat source region, the average value and the total convection heat dissipation power of the the upper and lower surfaces in the region without any heat source, and two-dimensional heat source uniform heating power, obtaining maximum diffusion thermal resistance corresponding to heat dissipation from a heat source to the upper and lower surfaces of the heat dissipation plate, and maximum total heat resistance from the heat source to the environment. According to the method of the present invention, the heat dissipation problem is described visually, and obtained data is more comprehensive.
Owner:TIANJIN POLYTECHNIC UNIV

Teaching instrument for alternating-current variable-frequency multi-unit air conditioner integrated control system

InactiveCN102194363AImprove teaching effectIncrease work status displayEducational modelsWiring diagramEngineering
The invention discloses a teaching instrument for an alternating-current variable-frequency multi-unit air conditioner integrated control system. The teaching instrument comprises an air conditioner host, an electrical control system and a teaching instrument board, wherein the electrical control system comprises an electrical control component, a sensor, an outdoor unit integrated circuit board,an indoor unit integrated circuit board and an executing mechanism which is driven by the outdoor unit integrated circuit board and the indoor unit integrated circuit board; the electrical control system also comprises a lightning protection module and a frequency conversion module; the teaching instrument board comprises a circuit principle board and an electrical control mechanism board; a schematic circuit diagram of the air conditioner host is printed on the circuit principle board; an electrical control system wiring diagram is printed and the electrical control component, the lightning protection module, the frequency conversion module, the outdoor unit integrated circuit board and the indoor integrated circuit board are arranged on the front surface of the electrical control mechanism board; and a wire is connected on the back face of the electrical control mechanism board according to the electrical control system wiring diagram, so that the outdoor unit integrated circuit board and the indoor integrated circuit board on the electrical control mechanism board are electrically connected with the executing mechanism. An experimental method provided by the invention has an intuitive principle and rich content, and is particularly suitable for experimental teaching of the alternating-current variable-frequency multi-unit air conditioner integrated control system for professional students of refrigeration, electricity, household appliances and the like.
Owner:SHUNDE POLYTECHNIC

Three-axis linkage contour error compensation control method for cylinder cam machining

The invention relates to a three-axis linkage contour error compensation control method for cylinder cam machining. The method carries out contour error calculation and compensation during an interpolation machining process according to the linkage of axis A, axis X and axis Y, and is characterized in that the method comprises the steps of in each sampling cycle detecting the actual location of the worktable of axis A, axis X and axis Y in a machine tool coordinate system; converting into a space rectangular coordinate system and approximating the distance between the actual cutter location point and the line connecting with the two closest interpolation points on the tool path of the cylindrical cam contour at contour errors; converting into the machine tool coordinate system to obtain the corresponding contour errors of axis A, axis X and axis Y; and introducing a scaling factor, acquiring the contour error compensation quantities through proportional control, separately stacking the contour error compensation quantities with the location control quantities of shaft A, shaft X and shaft Y to follow errors, and outputting to a servo actuator. The method provided by the invention has the advantages that during axis A, axis X and axis Y linkage machining contour error description is intuitive, calculation precision is high, and contour error compensation method is simple and effective.
Owner:SHANDONG UNIV OF TECH

Urban morphology analysis and controlling method based on three elements of plane pattern and fractal calculation

The present invention discloses an urban morphology analysis and controlling method based on three elements of the plane pattern and fractal calculation. The method comprises: obtaining city map research data, dividing a plurality of typical research areas, decomposing the three elements of the plane pattern to carry out fractal calculation respectively so as to obtain the fractal dimension and obtain the histogram of the fractal dimension of the three elements of the plane pattern in different research sub-areas; summarizing fractal dimension features of the three elements of the plane pattern in the research area; putting forward optimization suggestions; and carrying out reasonable control on the urban plane pattern in the urban planning design and management. According to the method disclosed by the present invention, the three-element framework of the plane pattern is combined with the fractal calculation method, and reasonable control is carried out on the urban plane pattern by using the quantized data of the fractal dimension; and at the same time, by combining the traditional urban morphology research method with the new technical means such as the GIS, the operation process is simplified, the workload is reduced, the research efficiency is improved, and the calculation results are efficient and accurate.
Owner:HUAQIAO UNIVERSITY

Reliability Assignment Method and Device Based on Immunogenetics Optimization

InactiveCN105512726BGuaranteed continuationLow lifetime costGenetic algorithmsDistribution methodGenetic algorithm
The invention discloses a reliability distribution method and apparatus based on immune genetic optimization, and relates to the field of reliability distribution. The method comprises the following steps: eliminating devices with selected models and devices with determined reliability indexes, and then according to operation working conditions of residual devices, carrying out system reliability modeling; constructing full-life cost function and obtaining a function taking the system full-life cost as an object; and randomly generating initial population, screening antibodies in the population, operating adaptive intersection and variation operation of a genetic algorithm, next, operating an immunization algorithm, extracting a vaccine, vaccinating the antibodies, then classifying the antibodies with higher fitness into new-generation population, determining whether the new-generation population is convergent, if so, outputting a distribution result, and otherwise, returning the antibody screening step. According to the invention, minimization of full-life cost is taken as a distribution object, the immunization algorithm and the genetic algorithm are combined together in a distribution process, and the method and apparatus provided by the invention are applied to task reliability distribution of a complex system.
Owner:NO 719 RES INST CHINA SHIPBUILDING IND

Triggering method based on oscilloscope measurement parameters

The invention discloses a triggering method based on oscilloscope measurement parameters. The method comprises the following steps of: acquiring ADC acquisition data, comparing the ADC acquisition data with preset high and low level values, determining a rising edge and a falling edge of an input analog signal, and selecting one triggering mode from alternative triggering modes, wherein the alternative triggering modes comprise a time parameter triggering mode, an amplitude parameter triggering mode and a combined parameter triggering mode, different triggering modes adopt different triggeringjudgment methods, measurement parameters of an oscilloscope are directly used as triggering conditions in each triggering mode, and a triggering signal is generated when the triggering conditions aremet; and controlling storage and reading operation of ADC sampling data so as to complete the parameter triggering function of the oscilloscope. According to the invention, the measurement parametersof the oscilloscope are directly used as trigger conditions, so that the characteristics of the target waveform are described more visually and accurately, a user can find out the target waveform part more conveniently and quickly, and the user can understand the target waveform part conveniently.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

A autonomous robust decision-making method for unmanned aerial vehicles based on scenario construction

The invention discloses an unmanned plane independent robust decision-making method based on scenario building. The unmanned plane independent robust decision-making method based on scenario building is characterized by comprising the following steps that first, the decision variable of a Red unmanned plane and the decision variable of a Blue position in a battle field are defined; second, a scenario is built; third, an influence diagram is established by using an influence diagram modeling method; fourth, the expected utility value of each scenario centralized in scenario of each decision candidate action plan in decision candidate action plans of the Red unmanned plane is calculated; fifth, the Red unmanned plane makes robust decisions according to the expected utility value. The unmanned plane independent robust decision-making method based on scenario building can effectively solve the problem of weak independent decision making capacity in a complex battle field environment, the unmanned plane is made to be capable of making independent decision in various scenarios, accordingly, the independent decision making efficiency and the decision making effect of the unmanned plane are improved, optimal action scheme choosing is achieved, and the feasibility, the effectiveness and the safety of the decision-making scheme are guaranteed.
Owner:HEFEI UNIV OF TECH

Teaching instrument for alternating-current variable-frequency multi-unit air conditioner integrated control system

InactiveCN102194363BImprove teaching effectIncrease work status displayEducational modelsWiring diagramEngineering
The invention discloses a teaching instrument for an alternating-current variable-frequency multi-unit air conditioner integrated control system. The teaching instrument comprises an air conditioner host, an electrical control system and a teaching instrument board, wherein the electrical control system comprises an electrical control component, a sensor, an outdoor unit integrated circuit board, an indoor unit integrated circuit board and an executing mechanism which is driven by the outdoor unit integrated circuit board and the indoor unit integrated circuit board; the electrical control system also comprises a lightning protection module and a frequency conversion module; the teaching instrument board comprises a circuit principle board and an electrical control mechanism board; a schematic circuit diagram of the air conditioner host is printed on the circuit principle board; an electrical control system wiring diagram is printed and the electrical control component, the lightning protection module, the frequency conversion module, the outdoor unit integrated circuit board and the indoor integrated circuit board are arranged on the front surface of the electrical control mechanism board; and a wire is connected on the back face of the electrical control mechanism board according to the electrical control system wiring diagram, so that the outdoor unit integrated circuit board and the indoor integrated circuit board on the electrical control mechanism board are electrically connected with the executing mechanism. An experimental method provided by the invention has an intuitive principle and rich content, and is particularly suitable for experimental teaching of the alternating-current variable-frequency multi-unit air conditioner integrated control system for professional students of refrigeration, electricity, household appliances and the like.
Owner:SHUNDE POLYTECHNIC

Analytical method for double convection cooling performance of rectangular heat sink with eccentric heat source

ActiveCN105260600BAccurate Quantitative CalculationTroubleshoot parsing difficultiesSpecial data processing applicationsDiffusion resistanceConvection heat
The present invention relates to an analytical method for the double convective heat dissipation performance of a rectangular heat sink with an eccentric heat source. By dividing the heat source area into a uniform grid, combined with the heat loss matrix and the non-uniform heat power matrix in the heat source area, iteratively calculates the excess temperature of all nodes in the heat source area. Iteration value, use the difference between the average value of the excess temperature iteration result and the average value of the previous iteration result to judge the convergence of the iteration result, count the local maximum value of the excess temperature in the heat source area, divide the grid on the upper and lower surfaces of the area without the heat source, and calculate the nodes Excess temperature and average value, to obtain the total power of convection heat dissipation on the upper and lower surfaces of the heat source area, according to the local maximum value of excess temperature in the heat source area, the average value of excess temperature on the upper and lower surfaces of the heat source area and the total power of convection heat dissipation, two-dimensional heat source The uniform heating power is used to obtain the maximum diffusion thermal resistance corresponding to the heat dissipation from the heat source to the upper and lower surfaces of the heat sink, and the maximum total thermal resistance between the heat source and the environment. The present invention can intuitively describe the heat dissipation problem and obtain more comprehensive data.
Owner:TIANJIN POLYTECHNIC UNIV
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