40results about How to "The method is clear" patented technology

The invention belongs to the field of computer vision and relates to a quantified evaluation method of image mosaic algorithms. The method comprises the following steps: carrying out mosaic on mosaic sequence images by adopting different mosaic algorithms to be evaluated so as to obtain mosaic composite images; carrying out overall statistics on the mosaic composite images and computing a global evaluation index; selecting corresponding mosaic sequence images as reference images in allusion to local mosaic composite images so as to carry out reference image quality evaluation and compute a local evaluation index; and constructing image mosaic evaluation index system levels by adopting a multi-index comprehensive evaluation method, determining the weighting coefficients of the indexes according to the mosaic requirement and purpose, normalizing the evaluation indexes and carrying out weighted aggregation step by step to finally obtain a comprehensive evaluation result. Through the quantified evaluation method of the image mosaic algorithms, the difficulties existing in the current mosaic evaluation algorithms are overcome; and the evaluation result fits the subjective judgment results of people and has objectivity, consistency and stability. The quantified evaluation method of the image mosaic algorithms can also be used for the quantified comprehensive evaluation of the algorithms such as image fusion and the like.

The invention relates to an optimal design method for structural parameters of cylindrical linear motors, belongs to the field of electromechanical intellectualization, and is motor parameter optical design technology. The method comprises the following steps: under the condition of meeting a structural parameter restriction range, dynamically sampling the structural parameters; analyzing thrust and undulating values of the cylindrical linear motors with different structural parameters by a finite element analysis method; taking the structural parameters as input of a neural network and the thrust and the undulating values as output of the neural network, and fitting functional relations of the structural parameters, the thrust and the undulation by the neural network; and finally optimizing the structural parameters to be optimized by combining an intelligent optimization method to obtain satisfying thrust and undulation performance in unit volume of a motor. The method is easy for engineered application, and can avoid inaccurate concentrated parameter calculation caused by complex magnetic circuits of the motor, difficult parameter optimization caused by the intercoupling of the parameters and the like. The technology can be also used for optimal design of structural parameters of motors with any structure.

The invention relates to a vehicle window automatic breaking method in emergency situations, belonging to the technical field of motor vehicle danger escape equipment. The technical scheme is as follows: the method comprises a window breaking facility (1), a window breaking controller (2), a multi-parameter emergency sensor (3) and at least one driver window breaking switch (4), wherein the window breaking controller is respectively connected with the window breaking facility and multi-parameter emergency sensor; and the window breaking facility is also connected with the at least one driver window breaking switch. When a fire hazard, cliff falling, water falling, traffic accident or any other emergency situation occurs to the motor vehicle, the sensor or driver window breaking switch is utilized to control the directional explosives and quickly break the vehicle window glass, so that the passengers in the vehicle can quickly escape in emergency situations. The method can shorten the window breaking time, is simple and easy to implement, is clear and innovative in the concept, and can maximally avoid or reduce casualties.

The invention discloses a method for shield sandy muck improving capacity enhancement and parameter determining. Sandy soil consistent with a stratum where a shield penetrates through serves as a mucktest material, a foaming agent and water serve as a basic improving material, according to the muck collapsing degree value and the apparent state, the proper improving area is determined, accordingto whether the initial water containing amount of the sandy soil of the stratum where the shield is located is in the range of the water containing amount of the proper improving area or not, whetherwater needs to be injected or not is clear, whether bentonite or high-molecular polymer needs to be injected to enhance the capacity that the muck can be improved by the foaming agent and water, according to the proper improving area, the foam injection ratio is determined, the muck in the proper improving state is subjected to a penetration test, and whether the impervious performance of the muckmeets the construction need or not under the high water pressure condition at the shield site is detected. The clear muck improving thinking is provided, the direction is clear, the technology is reliable, and the method can be directly used for shield tunnel site construction.

A filter assembly for a filter cartridge is disclosed, the filter assembly comprising a generally cylindrical carbon block filter element and a generally cylindrical carbon block filter element disposed around the radially outer surface of the carbon block filter element. Pleated filter element. The filter assembly has an outlet communicating with the cavity of the carbon block filter element so that the filtrate first flows through the pleated filter element, enters the carbon block filter element through the radially outer surface of the carbon block filter element, and radially Diffusion into the axial cavity of the carbon block filter element, and then flow axially along the central cavity of the carbon block filter element, and exit the central cavity of the carbon block filter element through the outlet.

The invention relates to a method for realizing WiMAX system message encoding and decoding, comprising the following steps: defining a TLV mapping table for traversing different data structures; constructing an original data structure according to a protocol; automatically converting and generating the above original data structure The data structure in the form of TLV mapping table, the definition of corresponding static variables, and the assignment mapping relationship between the TLV mapping table and the original data structure in each codec function; by traversing the TLV mapping table, the type and length elements are judged and processed After completing the encoding and decoding of the whole message, the method of the present invention can realize a TLV encoding and decoding code module that is simple, efficient, easy to implement, and easy to expand.

The invention discloses a parity 1-norm unequal length sequence similarity metric algorithm based on DTW. The parity 1-norm unequal length sequence similarity metric algorithm based on the DTW is oriented to the problem of the similarity metric of unequal length sequences with points of sudden changes. According to the algorithm, an absolute distance matrix of the unequal length sequences is constructed based on the DTW, the minimum values in the minimum absolute distance matrix are extracted in lines or columns to form a minimum absolute distance collection; in order to deal with the influences of the points of the sudden changes on the sequence distance metric, the parity 1-norm of the minimum absolute distance collection is adopted as a distance metric, and lastly, the similarity metric of the unequal length sequences with the points of the sudden changes is formed according to the relation between the distance metric and the similarity.

The invention belongs to the field of wind power climbing prediction, and relates to a wind power climbing prediction model switching method based on gale weather classification. The method includes the following steps of firstly, exacting characteristic quantities which can obviously represent the gale weather and characteristic indexes which can obviously represent the gale weather according to historical gale fluctuation weather in an assigned geographical range and forming a distinguishing expression; secondly, calculating a prediction range, the weighting coefficient of the characteristic quantities and the weighting coefficient of the characteristic indexes through the distinguishing criterion in the Fisher distinguishing method, obtaining a distinguishing result and conducting verification and analysis through a statistic test; finally, further obtaining a gale weather classification result through the distinguishing method, and forming a switching mechanism for different statistical prediction models according to the characteristics of the spatial and temporal scales of different types of gale weather. According to the method, the climbing weather distinguishing research is conducted on a result of numerical weather prediction, and the method provides the more accurate switching mechanism for different statistical prediction methods in the aspect of comprehensive prediction methods of wind power climbing.

The invention relates to a method for generating a multi-factor two-dimensional soil-rock mixture based on an ellipse stack and a random field, belonging to the field of morphological simulation and numerical calculation. The method comprises the following steps: S1: acquiring information of earth-rock mixture generation, acquiring real block information based on digital imaging and digital imageprocessing, S2: randomly generating virtual block stones, and generating random block stones satisfying real morphological characteristics based on real block theory. S3: Generating polygons satisfying real blocks at the same time. S4: According to step 2, geneating a random virtual block stone satisfying the stone content and not overlapping with each other in the polygon of step S3, and finallygenerating a multi-factor earth-rock mixture model capable of simultaneously satisfying the block stone. S5: integrating Steps S1-S4 into a software, which only needs to provide the image and size information of the earth-rock mixture to generate the earth-rock mixture model according with the actual law. The invention solves the generation and calculation problems of the multi-factor earth-rock mixture which can not simultaneously satisfy the true stone content, gradation, inclination angle, long-axis ratio and the shape of the block stone.

The invention discloses new energy comprehensive consumption capability evaluation method. The evaluation method is performed based on peak-load regulation balance in multiple periods; the evaluationmethod specifically comprises the following steps of selecting a load evening peak period, a load night valley period and a load midday peak period, and analyzing and researching regional electric power peak-load regulation balance conditions; taking the electric power peak-load regulation conditions of the load evening peak period and the load night valley period as the entry point, taking wind power installed capacity PWC as the solving object, and forming an equation set in a simultaneous manner; and taking the electric power peak-load regulation condition of the load midday peak period asthe entry point, and in a determination condition of the wind power installed capacity PWC, calculating solar energy power generation installed capacity PSC. The method is definite in ideas and clearin concepts, and can obtain the acceptable maximum scale of wind power and solar energy power generation without generating an energy abandonment phenomenon in certain power supply, power grid, load and other boundary conditions of the system, so that the scale problem in the regional new energy development can be guided effectively.

The invention relates to a method for measuring a rolling friction coefficient between a plane tire and a track, and belongs to the field of structural dynamics. A plane at least comprises two engines, calculation of the rolling friction coefficient includes the steps: firstly, adjusting throttles of m engines of the plane to the same positions, loosing a brake, enabling the plane to freely slide, and acquiring a first accelerated speed a1 of a barycenter course of the plane; secondly, adjusting throttles of n engines of the plane to the positions as same as those of the throttles of the m engines, loosing the brake, enabling the plane to freely slide, and acquiring a second accelerated speed a2 of the barycenter course of the plane. N is not equal to m. The two steps are simultaneously based on movement principles, relations between the rolling friction coefficient between the plane tire and the track and the accelerated speed of the barycenter course of the plane are built, and the rolling friction coefficient is obtained in a simultaneity manner. The method can rapidly obtain the rolling friction coefficient between the plane tire and the track in a tested manner and has an important engineering significance for evaluating taxiing performance of the plane.

The invention belongs to the field of steam turbine rotor welding manufacturing and discloses a welding defect evaluation method of a steam turbine rotor. The welding defect evaluation method comprises the following steps: the first step, adopting ultrasound accelerated fatigue tests on rotors of different batches with different welding processes to respectively obtain the maximum defect size of the structures of the rotors of different batches to be used as the initial defect size; the second step, respectively measuring a fatigue threshold value and estimating material intrinsic threshold value of the rotor of each batch under conditions of a plurality of stress ratios; the third step, obtaining a computational formula of the fatigue threshold value of the rotor of each batch; the fourth step, expanding two batches of welding initial defect sizes to certain specific sizes and determining merits of the welding process by virtue of comparison of the fatigue threshold value. By utilizing the welding defect evaluation method, welding defect type and distributed information are obtained by adopting very high cycle fatigue tests, defects are treated as cracks, and the welding defect is evaluated and the welding process is optimized by applying the relationship of short crack closure, fatigue threshold value and crack length.

The invention provides a method for determining water driving equilibrium displacement through a tracer technology. The method for determining water driving equilibrium displacement through the tracer technology comprises the following steps: step 1, filling a geologic model with water and adding a tracer into the geologic model, so as to obtain different oil-water interwell communication values; step 2, calculating a displacement breakthrough coefficient through the oil-water interwell communication values; step 3, obtaining a displacement breakthrough coefficient threshold value for judging whether the displacement is equilibriumm or not through analysis of oil-water interwell surplus oil; and step 4, judging whether all well groups reach displacement equilibrium or not according to the displacement breakthrough coefficient and by combining with the displacement breakthrough coefficient threshold value, so as to provide a basis for offshore vectorization allocation and injection allocation. The method for determining water driving equilibrium displacement through the tracer technology is clear in thought, simple and convenient in application and provides a technical support for greatly increasing the recovery ratio of offshore oilfields in middle and high water periods.

The invention discloses an LCD three-dimensional printing light equalizing method. The method comprises the following steps: acquiring an initial gray value of a pixel where a first array point coordinate is located under a whiteboard image; obtaining a uniform light compensation difference value corresponding to the initial gray value, interpolating the uniform light compensation difference value into a full-screen compensation difference value by using an interpolation compensation algorithm, and compensating the full-screen compensation difference value to an equal gray value to obtain a full-screen uniform light gray value; obtaining a gray average value of pixels in a central grid where a second matrix point coordinate central matrix point is located under the full-screen uniform light gray value image as a reference gray value; obtaining an average gray value of pixels in a non-central grid where the non-central matrix point is located, and obtaining an optimized compensation difference value between the average gray value and the reference gray value; interpolating the optimization compensation difference value into a full-screen optimization compensation difference value of each pixel of a full screen by using an interpolation compensation algorithm, and compensating the full-screen optimization compensation difference value to the full-screen compensation difference value to obtain a target gray compensation value; and compensating the target gray compensation value to the to-be-printed image data, and loading the to-be-printed image data into an LCD screen for photocuring printing.

The embodiment of the invention provides a radar scene matching terminal guided missile flight trajectory planning method, and relates to the technical field of missile trajectory planning methods. According to the method, the planning operation time can be greatly shortened, the application range of a launching area is increased, one set of digital reference map can be shared when multiple adjacent targets are hit, and the radar reference map guarantee capability and the weapon combat effectiveness can be effectively improved. The method comprises the steps of 1, preprocessing a radar reference map, and adjusting the resolution of the radar reference map to complete binarization processing; 2, planning a tail-section flight path, planning a tail-section attack direction, generating an envelope control point, and generating a tail-section flight path; step 3, performing control guidance planning, designing a control guidance rate, and realizing flight trajectory shift planning; 4, planning the change of the strike point, and planning the navigation correction amount of the changed strike point; and 5, planning available emission areas, and checking and generating an available emission area list.

The present invention provides a flow branch data rationality validation method. Flow branch data comprises a line parameter, a transformer parameter and a branch load rate. The method comprises the validation of the rationality of the line parameter, the transformer parameter and the branch load rate. According to the method, the branch load rate validation does not depend on flow convergence, the DC flow without convergence is used to estimate branch power, the similar result of branch power is obtained to carry out inspection, and the flow misconvergence caused by irrational branch load rate and the unable obtainment of a branch flow result are avoided. According to the method, a branch parameter with a large range and difficult direction inspection is translated into a visual line length and a transformer short-circuit voltage percentage with a typical range, the method thinking is clear, and the method is intuitive and practical.

The invention discloses a method for researching influence of soil moisture on diameter growth of a Larix gmelinii trunk. The method comprises taking samples of Larix gmelinii, measuring the soil moisture, measuring the diameter of the Larix gmelinii trunk and analyzing the data dependency. The Larix gmelinii sampling step includes sample preprocessing, interference of the external environment and loss of moisture in the Larix gmelinii cuticle are reduced, furthermore, the soil moisture and the Larix gmelinii trunk diameter can be measured accurately in real time, and a reliable theoretical basis is provided for data dependency analysis. The method for researching the influence of soil moisture on the diameter growth of the Larix gmelinii trunk is simple to operate and clear in mind, and can be widely applied to plantation and research of Larix gmelinii forests, and plays an important role in increasing the survival rate of Larix gmelinii and promoting the Larix gmelinii trees to grow.

The invention discloses a networked prediction technology for the dangerous factors of vascular cognitive impairment. The method comprises the steps of dangerous factor collection and evaluation. A vascular cognitive impairment dangerous factor decision tree prediction model is established through a training set, and codes are compiled and visualized to establish a database. In order to store testrecords of subject data, necessary links for managing a large amount of data are conveniently carried out. Finally, a data result table with specific guiding significance is survived according to a designed calculation method. The network implementation is achieved, and a user can use the system anytime and anywhere through the IP address of the server and a wireless network approach. According to the invention, an APP for model generation and manufacture based on the networked algorithm is easier to operate, so that the APP is suitable for people to use. The accuracy of correlation evaluation of dangerous factors and cognitive impairment is high, and the good convenience and scientificity are provided for users.

The invention provides a vibration analysis method and detection system for a double-threshing-cylinder chain transmission system of a combine harvester. The vibration analysis method comprises the following steps of establishing a chain transmission transverse vibration model of the double-threshing-cylinder chain transmission system; constructing a two-degree-of-freedom oscillatory differential equation of the double-threshing-cylinder chain transmission system; a two-degree-of-freedom oscillatory differential equation being simplified, a driven roller generating unbalance or eccentricity to cause excitation of the chain transmission system, and static coupling being decoupled according to the coordinate transformation based on the oscillatory differential equation of the double-threshing-roller chain transmission system. The detection system is designed to obtain the vibration quantity of the threshing cylinders installed in a chain transmission mode, and a foundation is laid for calculating the unbalance quantity of the threshing cylinders which are aggravated due to chain transmission transverse vibration when the threshing cylinders work in a load mode.

The invention belongs to the field of steam turbine rotor welding manufacturing and discloses a welding defect evaluation method of a steam turbine rotor. The welding defect evaluation method comprises the following steps: the first step, adopting ultrasound accelerated fatigue tests on rotors of different batches with different welding processes to respectively obtain the maximum defect size of the structures of the rotors of different batches to be used as the initial defect size; the second step, respectively measuring a fatigue threshold value and estimating material intrinsic threshold value of the rotor of each batch under conditions of a plurality of stress ratios; the third step, obtaining a computational formula of the fatigue threshold value of the rotor of each batch; the fourth step, expanding two batches of welding initial defect sizes to certain specific sizes and determining merits of the welding process by virtue of comparison of the fatigue threshold value. By utilizing the welding defect evaluation method, welding defect type and distributed information are obtained by adopting very high cycle fatigue tests, defects are treated as cracks, and the welding defect is evaluated and the welding process is optimized by applying the relationship of short crack closure, fatigue threshold value and crack length.

The invention discloses a cutting and trepanning method for a concrete chimney. The cutting and trepanning method comprises the steps of preparing a lifting appliance and a displacement frame, erecting a cross beam and a pulley block, installing a winch set, clamping and fixing cut concrete blocks, preparing for lifting and removing the cut concrete blocks and lifting and removing the cut concreteblocks. According to the cutting and trepanning method for the concrete chimney, through cooperation of the lifting appliance, the displacement frame, the cross beam, the pulley block and the winch set, a lifting and removing system for the cut concrete blocks is built on the concrete chimney, after concrete blocks are cut, through cooperation of the winch set, the pulley block and the displacement frame, the concrete blocks clamped and fixed by the lifting appliance are moved out of the wall of the concrete chimney and lifted away and removed, and cutting and trepanning of the concrete chimney are completed. According to the cutting and trepanning method for the concrete chimney, cutting and trepanning of the concrete chimney can be efficiently completed, the concrete blocks do not needto be accumulated on the chimney wall or a scaffold obtained after cutting and trepanning, the accumulated concrete blocks are prevented from collapsing and falling, sudden falling in the wall taking-out process is prevented, and injury accidents are avoided.

The invention provides a continental-sequence stratigraphic framework construction representation method based on multidimensional data. The method comprises the following steps of carrying out data collection and analysis; according to a lithology mutation surface, a curve change surface and other characteristics, establishing a sequence stratigraphic framework on ''points''; according to truncation, onlap, downlap and other interface characteristics, establishing a sequence stratigraphic framework on 'lines''; based on the sequence stratigraphic framework of the lines, according to data correlation of the lines, connecting the lines so as to form a surface, drawing a sequence stratigraphic thickness association map, and analyzing a distribution characteristic on sequence stratigraphic ''surfaces''; based on a characteristic on the ''surfaces'', establishing a whole-basin sequence-stratigraphic three-dimensional space ''body'' and improving sequence stratigraphic framework construction; according to a construction scheme of a sequence stratigraphic framework 'body'', collecting sequence developmental time series data; and analyzing a developmental characteristic of a basin sequence in different developmental periods in a three-dimensional space and a vertical evolution characteristic, establishing a sequence stratigraphic framework at a whole basin ''period'', and finally establishing a whole basin sequence stratigraphic framework.

The invention discloses a method for positioning an electric brush of a single-wave winding permanent magnet direct current motor based on second pitches. The method comprises the following steps: 1, selecting a moment when rotor components of the single-wave winding permanent magnet direct current motor have largest potential and zero current, establishing a moment expanded view of stator magnetic steel, the rotor components and commutator segments at the moment, determining all the rotor components, of which the axes are superposed with the axis of each piece of stator magnetic steel, in the moment expanded view, connecting the starting end edge and the tail end edge of each rotor component in all the rotor components with the two commutator segments correspondingly; and 2, determining the center line of each second pitch, taking the center line position as the mounting position of one pole of the electric brush, and mounting the other pole of the electric pole by rotating 180-degree electrical angle position based on the mounting position of one pole of the electric brush. By the method, all the positions of the electric brush of the single-wave winding permanent magnet direct current motor can be positioned, and the method is simple, convenient and intuitive.

The invention belongs to the field of wind power climbing prediction, and relates to a wind power climbing prediction model switching method based on gale weather classification. The method includes the following steps of firstly, exacting characteristic quantities which can obviously represent the gale weather and characteristic indexes which can obviously represent the gale weather according to historical gale fluctuation weather in an assigned geographical range and forming a distinguishing expression; secondly, calculating a prediction range, the weighting coefficient of the characteristic quantities and the weighting coefficient of the characteristic indexes through the distinguishing criterion in the Fisher distinguishing method, obtaining a distinguishing result and conducting verification and analysis through a statistic test; finally, further obtaining a gale weather classification result through the distinguishing method, and forming a switching mechanism for different statistical prediction models according to the characteristics of the spatial and temporal scales of different types of gale weather. According to the method, the climbing weather distinguishing research is conducted on a result of numerical weather prediction, and the method provides the more accurate switching mechanism for different statistical prediction methods in the aspect of comprehensive prediction methods of wind power climbing.

The invention discloses a new book pushing method and system based on big data, t, terminal equipment and a medium, and the method comprises the steps that S1, a user firstly sends a login instructionon the terminal equipment, a processing module sends a display instruction after receiving the login instruction, and a display module receives the display instruction and displays a user interface;S; s2, calculating an interest degree matrix M of the user for different new books by a subsequent processing module, and finding out books with first three scores in the interest degree matrix M by the subsequent processing module; A; and S3, t, the processing module sends a display instruction to the display module, and the display module displays the books and the positions of the books in front of the score on the user interface. C. By calculating an interest degree matrix of the user in the new book according to the product of the user interest component matrix and the transposition matrix of the book interest component matrix of each new book, and further selecting the books ranked in the top three are selected and pushing the books are pushed to the user. The whole method is clearin thought, capable of well pushing books according to user preferences, and very practical.