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49results about How to "Optimize calculation time" patented technology

Method for predicting path destination of moving object

The invention discloses a method for predicting the path destination of a moving object, and mainly solves the problems of sparse data, a low hit rate and poor real-time performance during the prediction of the path destination in the prior art. The method includes the following steps: off-line calculating the history path data in a training data set to obtain a location set, a prior probability of each location, a single-step transition probability matrix and a comprehensive transition probability matrix; calculating the conditional probability and the posterior probability of each location being the destination based on the off-line calculated data; on-line predicting the destination of the path to be predicted based on the posterior probability. Compared with the existing path prediction method, the method provided by the invention has the advantages that a prediction can be performed even when the data in the training data set is sparse; the calculation process of the prediction is optimized, so that the impact of the non-aftereffect property of Markov chain on the prediction accuracy is reduced; the prediction accuracy is improved; the method can be used for pushing location-related targeted advertisements and deploying criminal arrest plans in advance.
Owner:XIDIAN NINGBO INFORMATION TECH INST

Optimization method for controlling vibration of combined cycle unit by adjusting bearing elevation

The invention discloses an optimization method for controlling vibration of a combined cycle unit by adjusting the bearing elevation. The method comprises the steps that 1, substructure partitioning is conducted; 2, coefficients after the bearing elevation changes are solved; 3, a motion equation at any revolving speed is determined and established according to a fast system matrix algorithm; 4, degree-of-freedom reduction is conducted according to a fixed interface modal synthesis method; 5, system synthesis is conducted, and a motion equation after reduction is established; 6, steady-state response solution is conducted on a reduction system; 7, an optimization model is built; and 8, an optimization model is solved by adopting a genetic algorithm. According to the optimization method, the fast system matrix algorithm at any revolving speed is developed, bearing parameters are calculated by adopting a difference model, degree-of-freedom reduction is conducted according to the modal synthesis method, the requirement on computer resources is reduced, the solution speed is increased, and the optimization model is solved by adopting the genetic algorithm finally. The optimization method has the advantages of being high in calculation speed, saving calculation resources and the like.
Owner:XI AN JIAOTONG UNIV +1

Concrete creep effect analysis method

InactiveCN106777716ASimple calculationConducive to programming calculation analysisGeometric CADDesign optimisation/simulationBridge engineeringCreep strain
The invention relates to the technical field of bridge engineering, in particular to a concrete creep effect analysis method. The method comprises the following steps that 1, a time-dependent concrete stress value sigma (t) is measured; 2, according to the time-dependent concrete stress value sigma (t) measured in the step 1, a time(t)-dependent variation curve graph is obtained; 3, a recurrence method is adopted for obtaining a creep strain increment; 4, according to a stress relaxation coefficient R(t, tau)=sigma(t)/sigma0, the curve graph obtained in the step 2 and the step 3, a stress value sigma 0 of the moment tau 0 of concrete is set to be equal to 1, and a computational formula of a stress relaxation coefficient R(t, tau) at the time t is obtained, wherein the equation of the computational formula is shown in the description; 5, according to the stress relaxation coefficient R(t, tau), a concrete time-dependent elasticity modulus E(t, t0) is obtained; 6, according to the computational formula of the stress relaxation coefficient R(t, tau) and the elasticity modulus E(t, t0), concrete creep effect analysis is completed. According to the analysis method, the stress-strain algebraic equation is adopted, computation is greatly simplified, and programming computational analysis is promoted.
Owner:CHINA RAILWAY ERYUAN ENG GRP CO LTD

Implementation method and system of secure hash algorithm, medium and equipment

The invention provides an implementation method and system of a secure hash algorithm, a medium and equipment, and the method comprises the steps: dividing input data into a plurality of data blocks, sequentially dividing the data blocks into m message words, and executing the following steps for each data block: responding to the condition that the number n of iterations is less than or equal to m, inputting the n-th message word as a message word of the nth round of iteration into an entry of the iterative algorithm hardware structure, and obtaining a first permutation function and a second permutation function of the n-th round of iteration; in response to the fact that n is greater than m, obtaining a first permutation function and a second permutation function of the nth iteration based on a plurality of message words in the first m message words, obtaining message words of the nth iteration, and inputting the message words into an entry of an iterative algorithm hardware structure; and obtaining output data of the n-th round of iteration based on the message word of the n-th round of iteration, the first permutation function, the second permutation function and output data of the (n-1)-th round of iteration. According to the method, the algorithm calculation time is optimized, and the performance of a hardware algorithm structure is improved.
Owner:SUZHOU LANGCHAO INTELLIGENT TECH CO LTD

Structural damage identification method combining convolution and recurrent neural network

The invention discloses a structural damage identification method combining convolution and recurrent neural networks. The method comprises the steps of collecting vibration response acceleration dataof different positions of a to-be-detected target by utilizing a plurality of sensors; preprocessing the vibration response acceleration data to form a time series data matrix; extracting spatial correlation features and short time scale dependence features from the time series data matrix by using a convolutional neural network; extracting a long-time scale dependence feature based on the spatial correlation feature and the short-time scale dependence feature by using a gating loop network; and classifying the damage state of the to-be-detected target by using the long-time scale dependencecharacteristic. According to the invention, the relation of monitoring data in time and space is considered; the problems of insufficient feature extraction, poor robustness and relatively weak mode classification capability existing in damage state identification are avoided, structure damage identification precision is substantially improved, more calculation space consumption can be saved underreasonable training conditions, and relatively good calculation time and space balance are realized.
Owner:CHONGQING JIAOTONG UNIVERSITY

Moving a virtual articulated object in a virtual environment while avoiding internal collisions between the articulated elements of the articulated object

A method of moving a virtual articulated object in a virtual environment in a succession of unit movements, the articulated object comprising a set of articulated elements connected together by a set of joints, the relative positions of the articulated elements being defined by a plurality of joint angles about a plurality of degrees of freedom, the method comprising the following steps: calculating an interaction distance between a given articulated element and the other articulated elements of the articulated object; extracting from said interaction distance, a first point belonging to the given articulated element, and a second point belonging to one of the other articulated elements of the articulated object; defining a single extraction vector from said first and second points; and moving the given articulated element away from the other articulated elements of the articulated object in a movement defined as a function of the single extraction vector by acting on the degrees of freedom of the articulated object in order to avoid a collision between the given articulated element and the other elements of the articulated object.
Owner:SN DETUDE & DE CONSTR DE MOTEURS DAVIATION S N E C M A

Monitor control method and monitor control system for respiratory medicine department based on big data

The invention belongs to the technical field of respiratory monitor and discloses a monitor control method and a monitor control system for a respiratory medicine department based on big data. The control system comprises a power supply module, a respiration parameter acquisition module, an electrocardiosignal data acquisition module, an image acquisition module, a master control module, a data processing module, a data analysis module, a wireless communication module, a computer, a big data server, an alarm module and a display module. According to the monitor control method and the monitor control system disclosed by the invention, real-time discrete respiratory data are analyzed and mined by the data processing module, so that heath conditions of patients can be monitored in real time;the information acquiring efficiency is improved; in addition, information obtained by analyzing respiratory waveform data is abundant; meanwhile, the data analysis module is used for comprehensive analysis; individual conditions of users are analyzed fully, graphically and intuitively; respirator operating parameters of the users are set according to analysis results. A data analysis method disclosed by the invention is simple and high in practicality.
Owner:深圳市龙华区中心医院

Pot handle with view screen body

The invention discloses a pot handle with a view screen body. The pot handle comprises a pot handle (1), a view screen body (2) and a buckle (3). The view screen body (2) is arranged on the pot handle (1), and the pot handle (1) comprises a microphone (4), a timer (5), a switch (6), a liquid crystal screen (7), a copper-platinum shielding layer (8), a PCB (printed circuit board) (9), a wiring port (10), a decoding chip (11), a firmware memory chip (12), a FLASH chip (13) and a view screen body battery (14). The timer (5), the switch (6) and the liquid crystal screen (7) are arranged on the surface of the view screen body (2). The copper-platinum shielding layer (8) is arranged at the back of the liquid crystal screen (7), the PCB (9) is arranged behind the copper-platinum shielding layer (8), and the PCB (9) is connected with the wiring port (10), the decoding chip (11), the firmware memory chip (12), the FLASH chip (13), the view screen body battery (14) and the microphone (4). The buckle (3) is used for clamping the view screen body (2) on the pot handle (1). After the structure is adopted, a user can simultaneously appreciate various view screen programs, in particular to cooking programs during cooking, the timer on the screen can facilitate the calculation of the retention time of a dish in a hot pot or the soup stewing time. The pot handle disclosed by the invention has a simple structure, and can effectively enable people to effectively utilize time intervals during stewing and frying for studying and appreciating the various view screen programs, in particular to the cooking programs, study and grasp immediately and enable the dish frying to become simple and interesting.
Owner:徐光启

Batch data query method and device in real-time computing and computer equipment

The invention provides a batch data query method and device in real-time computing and computer equipment, and the method comprises the steps: constructing a Druid connection pool, and obtaining an asynchronous communicator VertX and Flink computing framework; performing first connection on the Druid connection pool and the asynchronous communicator VertX to obtain a connection device; carrying out second connection on the connection device and the Flink computing framework; based on the first connection and the second connection, generating connection information, and integrating and then storing the connection information in a specified directory of the Flink computing framework; constructing a real-time computing task of the Flink computing framework, and starting the real-time computing task; and inputting the batch data to be queried into the Flink computing framework, so that the Flink computing framework queries the batch data through the integrated connection information. Therefore, the problems of deadlock and poor stability caused by C3P0 can be avoided, and the data query performance in real-time computing can be improved on the premise of optimizing the computing time, so that the performance of the whole real-time computing is improved.
Owner:杭州玳数科技有限公司
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