44results about How to "Solve strong coupling" patented technology

The invention discloses a public sentiment data real-time collecting method and system based on distribution. The method comprises the following steps that firstly, a public sentiment data website class library is established, and crawling data items are classified and defined; secondly, a data acquisition website list is transmitted to a data collection server, the server allocates corresponding crawlers to circularly crawl data in a dormant mode; thirdly, crawled source webpage data is subjected to label analysis, the position of a target data item is positioned, and the target data item is obtained; fourthly, an obtained result data item is encapsulated into a uniform format of a corresponding class; fifthly, the encapsulated data is stored into a corresponding database; sixthly, a monitoring log file is generated. According to the public sentiment data real-time collecting method and system based on distribution, the architecture is advanced, a factory mode is used as a main design mode of the system, new examples can be quickly generated, system core functions such as browser assess, log generating, data encapsulation, agent setting and queue setting are encapsulated, the expandability and transportability of the system are enhanced, and the reusability of codes and the maintainability of the system are improved.

The invention discloses a high-frequency high-voltage transformer design optimization method based on a genetic algorithm. On the basis of a minimum loss formula of a transformer and the insulation dimension and the iron core shape of the transformer, a mathematical model is established, a genetic algorithm is adopted for optimizing the transformer by taking the number of turns of primary sides and the layer number of secondary sides as optimization variables and taking efficiency as an optimization target, so that the efficiency of the transformer is maximized, the loss of the transformer is minimized, temperature rise is minimized under an equal condition, the leakage inductance and the distribution capacitance of the transformer are fully utilized to participate in the work of a power system to form an LCC (Life Cycle Costs) resonance circuit, and the loss of the transformer is reduced so as to lower the temperature rise. Compared with the prior art, the invention introduces the genetic algorithm, the genetic algorithm exhibits a problem non-relevant quick and random search capability, searches by starting from a group and has the characteristic of concurrency, and a plurality of individuals can be simultaneously compared to greatly quicken optimal solution search speed.

The invention discloses an AC/DC hybrid distribution system grid structure optimization configuration method, which comprises the following steps: S1, constructing a AC/DC hybrid system grid structuredouble-layer optimization model; S2, constructing a probability model of AC and DC load demand, charging pile charging demand, distributed photovoltaic and fan output; 3, generate a feasible configuration scheme of that space truss structure; S4, setting the reference operation mode of the power electronic transformer; S5, Monte Carlo simulation is used to generate the optimal power flow sub-optimization problem under the running scenario until the stop condition of Monte Carlo simulation is satisfied; 6, according to that current sub-optimization termination condition, if it is satisfied, entering step S7, if it is not satisfied, modifying the port control mode of the power electronic transform, and returning to step S5; S7, calculating the total cost of investment construction and operation of the current scheme to check the main optimization objective, outputting a description matrix if the objective requirement is met, and updating the grid configuration scheme if the objective requirement is not met, and returning to step S4.

The invention discloses a method of designing a high-frequency high-voltage transformer for electrostatic dust collection. The method comprises the steps of designing the high-frequency high-voltage high-power transformer, carrying out type selection on materials, applying a particle swarm optimization algorithm to an optimization design of the transformer, and optimizing the high-frequency high-voltage transformer by taking the efficiency as a goal. Compared with the prior art, the particle swarm optimization algorithm is introduced, the transformer can be optimized in characteristics of strong coupling property and dynamic property between the parameters of the transformer, and a method of randomly adjusting the inertia weight is introduced in the particle swarm optimization algorithm at the same time, so that the algorithm optimization efficiency is greatly improved.

The invention discloses a waveguide device microwave gas discharge numerical simulation method. According to the method, a microwave gas discharge fluid model in a waveguide structure is built, accurate numerical analysis is performed on electron density, electron fluid velocity and average electron energy during gas breakdown, and accordingly, the law of changing of the electric field intensity and the electron density at different observation positions along with the time in the condition of gas discharge of waveguide devices in different geometric profile complicated structures. The modeling of waveguide devices in any complicated structures can be achieved based on the time domain spectral element method; the generated mass matrix is a block diagonal matrix, and an inverse matrix can be obtained directly, so that the calculation time is reduced greatly; meanwhile, by the aid of the numerical simulation method, the breakdown threshold obtained through electric field distribution and electron density inside the waveguide devices through repeated experiments can be prevented, and accordingly, the design period is shortened, the design cost is saved, and the method is quite applicable to effective simulation design and numerical simulation of waveguide devices with discontinuous structures.

The embodiment of the invention discloses a message modification method and device, equipment and a storage medium. The method comprises the following steps: acquiring a message, wherein the message comprises protocol information; acquiring the key fields of the message, and acquiring the key field matching information by inquiring a key field matching rule table, wherein the key field matching information comprises message modification action information; acquiring a first modification rule conforming to a first protocol in the protocol information and first key field matching information in the key field matching information from preset modification rules, wherein the first modification rule comprises message modification action information; and modifying the message according to the first modification rule and the modification action parameter corresponding to the first modification rule to obtain a modified first message. According to the message modification method and device, the equipment and the storage medium provided by the embodiment of the invention, the flexibility of data packet forwarding processing can be improved.

The present invention is applicable to the technical field of Android devices, and provides a middleware application method and apparatus. The application method comprises the steps of loading a middleware framework service in an Android system, and starting a functional module in the middleware framework service; binding an application program with the middleware framework service, installing the application program to the middleware framework service, and after finishing installation, starting the application program; and in running of the application program, invoking the functional module that the application program relies on from the middleware framework service, wherein the middleware framework service is an OSGi framework service, and the OSGi framework service is used for implementing running of the OSGi framework in the Android system. According to the method, problems of strong coupling of the middleware and the application program and large load of the Android system in the prior art are solved, and it is ensured that the Android system always runs the OSGi framework service of the highest version.

The invention discloses a heating furnace variable alternate acknowledge overall planning and limit control method and belongs to the technical field of industrial control. A heating furnace control system achieving the method is composed of a combustion system, a branch temperature balancing system and a temperature intelligent compensation system. In each control period, the monitoring index ofeach subsystem is automatically detected, the subsystems operate when Fi is 1, and the subsystems are stopped when Fi is 0. When the branch temperature balancing system operates, the branch feeding amount is adjusted in a limited mode, and the limit control technology is provided. The alternate acknowledge mechanism of each subsystem of a heating furnace is built, coordinate control of each variable of the heating furnace is overall planned, and safety long-term stable operation of the heating furnace is achieved. Four branch flow rates of the heating furnace are not controlled in a definite-value mode but as an auxiliary loop of liquid level control, and the branch balance control implementation difficulty is large. The branch temperature balancing system is introduced to solve the problems that the branch temperature difference among four branch furnace pipes is large, and the opening degrees of branch feeding flow valves are not consistent.

The invention discloses a cement grinding mill system power consumption index prediction method based on an extreme learning machine, and the method comprises the steps: firstly collecting related variables, carrying out the operation analysis of a cement grinding mill system, selecting eight variables related to the power consumption of a cement grinding mill as input variables, selecting the ton power consumption as an output variable, and constructing an input and output layer of an ELM model; optimizing the number L of neurons of the ELM, the weight w of an input layer and the bias b of a hidden layer by using an IPSO algorithm; the IPSO algorithm taking a mean square error of the model as a fitness function in a parameter optimization process; ELM related parameters obtained through IPSO optimization being combined with sample data to complete training of an IPSO-ELM prediction model, and industrial field actual data being substituted into the trained model to complete online prediction of the power consumption of the cement grinding mill system. According to the method, the IPSO-ELM model is trained by using the sample data to obtain the power consumption prediction model, and variable data of an actual cement production site is input into the trained model, so that online prediction of the power consumption index of the cement grinding mill is realized.

An embodiment of the invention provides a six-rotor aircraft attitude decoupling control method. according to the six-rotor aircraft attitude decoupling control method, an undesired coupling terms ineach loop are regarded as output disturbances applied to the loop, an appropriate disturbance compensator is designed to compensate for the output disturbances and external disturbances, and the adverse effects of strong coupling and the external disturbances of an aircraft system are eliminated. The traditional disturbance observer is not suitable for a multi-input multi-output system. An anti-disturbance observer adopted in the six-rotor aircraft attitude decoupling control method can be used for the decoupling control of the multi-input multi-output system, ensures the disturbance suppression performance and robust stability of the disturbance compensator, has good decoupling and disturbance suppression, and can ensure good tracking performance and stability of a six-rotor aircraft.

The invention discloses a pseudo decoupling controller of a four-wheel steering intelligent automobile and a control method thereof. On the basis of intelligently sensing an external environment and observing internal parameters, a four-wheel steering intelligent automobile original model is firstly established, then a right inverse model is established and is arranged on the left side of the original model in a series connection mode, and the four-wheel steering intelligent automobile original model and the right inverse model jointly form a pseudo-decoupling system; a finite time stability model of the four-wheel steering intelligent automobile is established for observing the finite time stability of the four-wheel steering intelligent automobile. A finite time model mismatch degree model of the four-wheel steering intelligent automobile is established for mismatch degree observation of an original model and a right inverse model of the four-wheel steering intelligent automobile. And finally, a steering control decision module is designed, and making decisions on whether to steer and control parameters according to two characteristic parameters, namely external environment perception, internal parameter observation, finite time stability and finite time model mismatch degree, so that the steering control performance and the intelligent level of the four-wheel steering intelligent automobile are improved.

The invention brings forward a mobile terminal comprising a metal frame, a metal support used for installation of a display screen and an antenna radiation body. The metal support is installed in the metal frame, and at least two edges of the metal support are matched with the corresponding edges of the metal frame. A metal ring is formed by the non-matching edges on the metal support and the edges, which are corresponding to the non-matching edges on the metal support, of the metal frame together. The metal ring is arranged in the projection area of the antenna radiation body. The mobile terminal is characterized in that the metal ring is provided with a grounding device which is connected with the reference ground of the mobile terminal. The objective of the mobile terminal is to solve a problem of strong coupling between the metal ring structure and the antenna radiation body in the mobile terminal so that antenna radiation efficiency is guaranteed.

The invention provides an on-line monitoring method for generator safety leading phase capability margin. The method comprises the following steps: constructing a generator reactive power minimizationobjective function based on a generator power angle equation; acquiring data of generator leading phase operation under different active outputs from a WAMS system to construct a sample library, andestablishing a function relationship and constraint conditions between a target variable and an independent variable; constructing a leading phase limit optimization model of the generator according to the function relationship and the constraint condition; judging whether the generator is in a leading-phase operation state or not by acquiring current active power and reactive power of the generator in real time; and when the unit is in a leading-phase operation state, starting the leading-phase limit optimization model for calculation to output the leading-phase limit and leading-phase capability margin of the generator under the current active output working condition. The method provided by the invention is simple in modeling, small in calculation amount, high in calculation speed, highin result precision and high in operation mode generalization capability, and realizes online monitoring of the leading phase capability margin of the generator without a field test.

The embodiment of the invention provides a communication method and device for a terminal and a server. The communication method comprises the steps that a first server receives a first request message sent by the terminal, and the first request message is used for enabling the first server to send an authentication request to a second server, and obtaining a first secret key from the second server; the first server sends a first request response message corresponding to the first request message to a terminal, wherein the first request response message comprises a second key; the first serverreceives a second request message sent by the terminal, and the second request message comprises a second key identifier, and the second key identifier is used for enabling the first server to generate a second request response message corresponding to the second request message according to a second key corresponding to the second key identifier; and the first server sends a second request response message to the terminal. The terminal obtains the authentication and the secret key from the server through over-the-air downloading, so that the generation and the use of the secret key are moreflexible.

The invention provides a stub-free micro-service calling method and device, and relates to the field of computers and finance, and the method comprises the steps: receiving a service calling request; when a service interface name in the service calling request and a corresponding method list exist in the latest method list cache, acquiring instance information of a service provider from a registration center; converting the service calling request into a conventional proxy request; sending the conventional agent class request to the service provider according to the instance information, and performing remote calling of the service. The problem of strong coupling of the service calling party and the service provider on the service stub is fundamentally solved, the service calling party can carry out service calling without loading the service stub, and the performance and stability of the calling party are improved.

The invention discloses a six-rotor unmanned aerial vehicle MPC control method based on an ROS platform, and belongs to the field of unmanned aerial vehicle intelligent control. According to the method, the kinetic model of the six-rotor unmanned aerial vehicle is established, the problems of high nonlinearity and strong coupling of the model of the six-rotor unmanned aerial vehicle are solved through linearization processing of the model, and the control target is greatly simplified; a single-stage controller of the unmanned aerial vehicle is designed by adopting a model prediction control method, a control structure adopts a closed-loop control method, the position and the attitude of the unmanned aerial vehicle are controlled, and the shackle that a traditional unmanned aerial vehicle needs to be cascaded with two-stage controllers is broken through. The method has the advantages of strong autonomy, accurate tracking, high stability, low cost and the like, and can be applied to the fields of unmanned aerial vehicle power line inspection and the like.

The invention relates to a file private cache establishing method and device. The device mainly comprises a strategy determining module and a file private cache unit module. The method specifically comprises 1) intercepting all IRP (I/O (input/output) request package) requests in an operating system kernel; 2) according to IRP strategy determining conditions including IRP types, process unique identities, file path identities and file content, selecting the IRP requests which require file private caches and establishing private cache units; 3) executing the IRP requests of the file private caches and feeding the result back to the operating system kernel. According to the file private cache establishing method and device, the file private caches and file system caches can exist simultaneously, so that the problem of strong coupling between various application content differentiating products and operating system file cache processing of the same file can be solved; meanwhile, the operating mode of the file private caches is identical to that of the file system caches, and no changes of the file operating mode and the file information of application software occur, so that the problem of uniformity of various applications access to the same file can be solved.