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1099results about How to "Difficulty of Simplification" patented technology

Method for detecting, tracking and recognizing movement visible exogenous impurity in medicine liquid

The invention discloses a detecting and recognition method of moveable and visible foreign matters and bubbles in liquid medicines, which is characterized in that the method comprises the following steps: (1) a continuous multi-frame image of a liquid medicine to be detected is obtained; (2) the image is preprocessed; (3) a moveable object is extracted, and a reinforced image is obtained; (4) the moveable object is partitioned as follows: an improved two-dimensional maximum entropy threshold partitioning algorithm is applied into the processing of the reinforced image and a two-dimensional histogram that is formed by grayscale and average neighborhood grayscale is adopted for choosing threshold, thus obtaining a partitioned image; (5) the movable object is traced; and (6) the image is identified and determined as follows: a movement trace of the object is obtained according to the tracing result, objects inducing foreign matters and bubbles are identified and distinguished by utilizing the continuity and the directivity of the object movement trace, and consequently whether the liquid medicine is qualified is finally determined. Under the condition of ensured algorithm precision, the detecting and recognition method of moveable and visible foreign matters and bubbles in liquid medicines adequately simplifies computation, improves the real-time property of the algorithm, greatly raises the accuracy of foreign matter and bubble identification in the liquid medicine, and lowers the false detection rate of the medicine.
Owner:HUNAN UNIV

Intelligent vehicle lane change path planning method based on polynomial and radial basis function (RBF) neural network

The invention relates to an intelligent vehicle lane change path planning method based on a polynomial and radial basis function (RBF) neural network. The intelligent vehicle lane change path planning method comprises the following steps that: the state information of obstacles and lane change vehicles in lanes are detected and determined according to a vehicle-mounted sensor, and the state information comprises positions, speed, acceleration and shapes; the lane change vehicles and the obstacles are geometrically covered, and in addition, a lane change path model using the time as the independent variable is built; boundary conditions of the lane change vehicles are obtained by the dynamic RBF neural network; the lane change path parameter is subjected to traversing in a certain range according to a certain step length, and the calculation of a polynomial method is combined to obtain the lane change path set under the specific boundary conditions; index functions for evaluating the merits of the lane change patch performance are defined, the optimal path in generated lance change paths is screened according to the index functions and is applied to the practical lane change process of vehicles; and whether the RBF neural network is updated or not is determined according to the merits of the boundary conditions of the generated lane change paths. The neural network has good self-adaption capability, so that the problem that the RBF neural network structure is oversize or undersize is solved.
Owner:BEIJING UNIV OF TECH

CPU virtualization method based on processor partitioning technology

The invention provides a CPU virtualization method based on processor partitioning technology, which comprises the following steps: aiming at a multi-core or many-core platform, firstly, dividing a CPU core into a management core (H-Core) partition and a plurality of general core (G-Core) partitions; then, allocating management tasks and privileged domains in a VMM into the H-Core partition for operating; dividing general client domains operating on the VMM into different virtualization task subsets according to individual characteristics; and allocating the virtualization task subsets into the corresponding G-Core partitions for operating. Different scheduling policies and resource allocation policies can be realized aiming at different types of virtualization tasks in different CPU partitions. The CPU virtualization method of the invention improves the safety and the reliability of the virtualization system on the multi-core or many-core platform, reduces the complexity of CPU virtualization, simultaneously simplifies the complexity of overall resource allocation and scheduling, improves the capacity of the VMM for allocating and scheduling computing resources, and has the advantages of safety, reliability, high efficiency and high performance.
Owner:BEIHANG UNIV

Method for realizing precise geometrical positioning in wireless network

The invention relates to a method for realizing precise geometric positioning in a radio communication network, which comprises the following steps: a. screening out the most typical RSSI value of points to be tested in the radio network; b. calculating the distance between the points to be tested and reference points; c. determining the location information of the points to be tested according to the information of the distance between the points to be tested and the two reference points, and the information of the locations of the two reference points; and d. determining the final positioning information of the points to be test according to the location information of a plurality of groups of points to be tested. Compared with the prior zone location and simple weighted average location, the method adopts the most basic geometric method to locate the points to be tested and significantly increases the precision. By using the method of combining the equation of a circle and a trigonometric equation is adopted, a quadric equation set in two variables is transformed into a quadric equation set, thereby simplifying procedure realization. Different processing methods are adopted according to different forms of circle intersection, all situations that are possible to occur are handled wherever possible, thereby ensuring the practicability of the method.
Owner:XIAN DATANG TELECOM

Cascading failure search and weak link analysis method based on operation reliability model

ActiveCN106327034ASimplify the difficulty of research questionsDifficulty of SimplificationResourcesCascading failurePower flow
The invention relates to a cascading failure search and weak link analysis method based on an operation reliability model. The method comprises steps: initial failure is generated randomly; a DC power flow is calculated, whether a load threshold-crossing line exists in a power system is judged, if yes, a next step is carried out, or otherwise, the operation is stopped; an initial failure set is generated, and through the operation reliability model, the threshold-crossing line outage probability is calculated; the power system state probability is calculated; if the power state probability is larger than a set threshold and the failure scale is smaller than a set threshold, the power state is added to an alternative failure set, and if no state meeting the condition exists, search is stopped; the initial failure set is taken as an alternative failure set, the current alternative failure set is emptied, and the above steps are repeated. Through searching a cascading failure event in different initial failure and analyzing a system weak link, a corresponding system reform scheme is provided, happening of the cascading failure is prevented, a subsequent event is found during an event development process, and further evolution of the cascading event can be prevented.
Owner:CHINA ELECTRIC POWER RES INST +3

Circular floating ocean platform capable of releasing multi-point mooring

The invention discloses a circular floating ocean platform capable of releasing multi-point mooring in the technical field of ocean oil-gas engineering and ships. The circular floating ocean platform comprises a ship body, a floater, a mooring cable and stand pipes, wherein the floater is sleeved to the interior of the ship body, the top of the floater is positioned above the surface of water, and two ends of the mooring cable are connected with the bottom of the floater and a seabed mooring point respectively; and if the lower ends of a plurality of the stand pipes are connected with underwater oil-gas production facilities at the seabed, the upper ends of the stand pipes are communicated to the top of the floater through the bottom of the floater, and connected to an interface on the top of the floater. The ship body has a circular structure, and the center of the ship body is provided with a hollow circular cavity for fixing the floater. The circular floating ocean platform works under severe sea conditions, is released in advance before heavy storm or iceberg or other severe sea conditions to drag a production oil storage and unloading platform ship body to a safe sea area to ensure safety, and is reconnected to recover normal production work after the severe environments.
Owner:LICE SCI & TECH SHANGHAI

Test script processing device, system and method

ActiveCN103902456AImprove compilation test efficiencyIncrease the value of reusabilitySoftware testing/debuggingTest efficiencyTest script
The invention discloses a test script processing device, system and method. The test script processing device comprises a data structure acquisition device, a script generation device and a script editing device, wherein the data structure acquisition device is used for acquiring interface information and a data structure of a script from an external server, the script generation device is used for generating a script file frame and padding data according to the interface information and the data structure, and the script editing device is used for editing the script file frame padded with the data to a test script file. Or, the test script processing device comprises a script conversion device, a source code compiling and loading device and a parsing and invoking device, the script conversion device is used for receiving the test script file and converting the test script file into program source codes of the test script file, the source code compiling and loading device is used for performing compiling processing on the program source codes of the test script file, and the parsing and invoking device is used for parsing and invoking the program source codes subjected to compiling processing, and interacts with a to-be-tested system to acquire an execution result of the test script file. By the device, system and method, compilation test efficiency of the test script can be improved, and value of script reutilization can be increased.
Owner:INDUSTRIAL AND COMMERCIAL BANK OF CHINA

Adverse state detection method of transverse pins of rotation double lugs of high-speed rail overhead contact line equipment

InactiveCN106326894AAvoid defectsObjective detection and analysis resultsCharacter and pattern recognitionHough transformEngineering
The invention discloses an adverse state detection method of transverse pins of rotation double lugs of high-speed rail overhead contact line equipment. The method includes following steps: in a positioning stage, firstly, according to line characteristics of a connecting position at which a cotter pin is located and inclined cantilevers in an image, detecting lower edges of the inclined cantilevers by employing Hough transform and extracting slope characteristics thereof to realize primary positioning of the cotter pin, and then classifying primary positioning pictures by employing a PBoW model; and in a detection stage, performing coarse positioning by employing target geometric distribution characteristics, performing image enhancement by employing a Retinex method according to characteristics of small size, darkness, and weakness of the cotter pin, extracting a circular characteristic of a screw at the connecting position by employing a Hough accumulation matrix, realizing accurate extraction of a circular ring area in which the cotter pin is located, and finally giving detection criteria of deletion of the cotter pin and insufficient field angle according to a in-circular-ring non-communication area distribution rule. According to the method, positioning accuracy of the connecting position of double lugs and the connecting position of upper ends of short diagonal braces and fault detection of falling of the cotter pins and insufficient field angle are realized.
Owner:SOUTHWEST JIAOTONG UNIV

Three-dimensional mechanical in-process model sequential modeling method based on removal feature recognition

The invention relates to a three-dimensional mechanical in-process model sequential modeling method based on removal feature recognition, which mainly aims to solve the technical problems of repetitive work and big application limitation in the prior art. In the method, first of all, the removal features are classified into boundary feature, inset feature, communication feature, thread feature and loop feature. On the basis of the classification, the method includes the steps of: 1) producing a workblank; 2) judging whether a next process is necessary, and if yes, entering the third step; 3) recognizing the removal features in the process, which includes selecting a feature type and recognizing the feature; and 4) modeling the in-process models. All the in-process models are assembled to form a whole process model and are organized by a standard structure of a process all-information model. The method makes full use of the geometrical characteristics of the original components, solves the problem of high quality requirement to the original component model design in three dimensional process design, speedily creates the in-process models according to the practical mechanical processing sequence and improves the overall efficiency of the process design system.
Owner:SHENYANG AEROSPACE UNIVERSITY

Method for optimizing SAR (Specific Absorption Rate) extended scene imaging on double-base forward-looking high-mobility platform

The invention discloses a method for optimizing SAR (Specific Absorption Rate) extended scene imaging on a double-base forward-looking high-mobility platform. The method comprises the following main steps: obtaining an SAR time domain echo signal of a point target at first so as to obtain an echo signal and a range history after the linear moving amount is corrected, and then, carrying out azimuth FFT (Fast Fourier Transform) of the echo signal after the linear moving amount is corrected so as to obtain a two-dimensional frequency spectrum of the time domain echo signal; and carrying out high-order approximation of the range history after the linear moving amount is corrected, carrying out Taylor series development in the range direction after obtaining the phase term of the high-precision two-dimensional frequency spectrum after the linear moving amount is corrected, eliminating the phase space-variant property of the phase term of the high-precision two-dimensional frequency spectrum by adopting high-order polynomial fitting, carrying out range domain IFFT (Inverse Fast Fourier Transform) after obtaining a phase compensation signal having good focus in the range domain through a matching filter designed through the two-dimensional frequency domain, and then, obtaining focused SAR imaging through the matching filter designed in a range-Doppler domain.
Owner:XIDIAN UNIV

Pulse eddy electromagnetism nondestructive detection method based on probe with iron core coil

The invention discloses a pulse eddy electromagnetism nondestructive detection method based on a probe with an iron core coil. The probe consists of an iron core bundle, an excitation coil and a detection coil, wherein the iron core bundle is arranged in the center of the excitation coil; the detection coil is arranged outside the excitation coil. When the probe with the iron core coil is adopted to perform pulse eddy detection on a part, a strong pulse magnetic field of a dense space can be generated, an excitation magnetic field is increased, the signal to noise ratio of a signal is increased, and pulse eddy detection on a component with a relatively large wall thickness can be achieved under a relatively high lift-off condition. When a pulse eddy electromagnetism nondestructive detection system based on the probe with the iron core coil is adopted for detection, the influence of the pulse eddy field inside the iron core to the detection signal can be measured according to a probe time constant tau s. When tau s is greatly smaller than a part diffusion time constant tau e, the influence of the pulse eddy field inside the iron core to the detection signal can be ignored, the function of the probe with the iron core coil can be approximated to be linear amplification of the detection signal, and thus the signal processing difficulty is reduced.
Owner:BEIHANG UNIV

Overhead contact system rod insulator fault detection method based on Harris corners and image difference

InactiveCN103310438AOvercome the defects of low efficiency of manual recognitionImprove efficiencyImage analysisCharacter and pattern recognitionTemplate matchingAngular point
The invention discloses an overhead contact system rod insulator fault detection method based on Harris corners and image difference. The method includes the following steps: the Harris corners of a selected template image and an image to be detected are first respectively detected; the sequential similarity detection algorithm is then utilized to match the corners in the template image and the image to be detected; the matched corners are then fuzzily clustered, and because matching can cause the loss of useful corners, the corners need to be recovered; afterwards, the least square method is utilized to fit a straight line; finally, according to the symmetry of the images on two sides of the straight line, the image is differentiated, the vertical grey level is calculated, a fault information curve is obtained, and a fault diagnosis is presented. The method realizes the rotation resistance of template matching, moreover, the fault diagnosis is simple, and the method provides a new idea for the development of intelligentized patrol inspection systems for overhead contact systems, and can purposefully enhance the safe reliability of overhead contact systems of electrified railways.
Owner:SOUTHWEST JIAOTONG UNIV
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