150 results about "Consistency control" patented technology

The invention relates to the technical field of automatic generation, in particular to a knowledge graph driven teaching material automatic generation method and system. The method comprises the following steps: receiving teaching target input, analyzing the teaching target input into a multi-layer structure based on a preset teaching intention meta-model, and mapping the multi-layer structure to a knowledge graph node; generating an optimal teaching path through a rule engine in combination with the node topology position and the teaching intention level; after the topological fingerprint of the target textbook system is recognized, compatibility analysis is executed, and if a structural gap exists, a transition module is automatically inserted to reconstruct a path; calling the bound multi-modal content unit according to the reconstruction path node, and completing modal coordination according to a cross-modal dependency graph; and finally, performing structured rendering on the integrated content, and outputting a textbook body adaptive to the terminal. The method has the advantages of teaching intention deep understanding, multi-modal content consistency control and cross-textbook system adaptation, and the intelligence level and generalization ability of textbook generation are improved.

The invention provides an unmanned aerial vehicle consistency control method based on a Stackelberg-Nash game, and relates to the technical field of multi-agent consistency and game optimization control. The method comprises the following steps: establishing a motion attitude nonlinear dynamic model of each unmanned aerial vehicle in a multi-unmanned aerial vehicle system, and defining a communication network topological relation; constructing a consistency error and a performance index function; the method comprises the following steps: establishing a layered Stackelberg-Nash game mechanism with a plurality of participants; utilizing a Bellman optimality principle to construct a coupling HJB equation to solve an optimization control strategy of the leader and the follower; and constructing a single evaluation network to estimate the optimization control strategy of the leader and the follower in each execution so as to realize an optimization control target. A favorable tool is provided for analyzing a series of control problems of master-slave consistency of multiple unmanned aerial vehicles in the control field, and the reliability of a control system can be enhanced to a certain extent.

The invention relates to the technical field of underwater robot cooperative control, and provides an elastic consistency control method and system of a multi-underwater robot system. The elastic consistency control method for the multi-AUV system comprises the following steps: discretizing and linearizing the multi-AUV system, introducing a performance index to describe the influence of communication topology on the dynamic behavior of the system, and calculating the elastic consistency of the multi-AUV system on the basis of a centralized optimal control method of a local decoupling system and a robust stability theory. And designing an elastic consistency controller and obtaining controller gain by solving a local algebraic Riccati equation so as to realize consistency control of multiple AUV system states. According to a sparse mode matrix spectrum of a distributed controller, a system stability condition is given, and efficient cooperation and stable operation of a multi-AUV system in a complex underwater environment are ensured. According to the method, the calculation and communication complexity is remarkably reduced, the method is suitable for a multi-AUV cooperative working environment, and a new technical solution is provided for cooperative control of the underwater unmanned system.

The invention discloses a distributed consistency control method suitable for a multi-unmanned trolley system, and designs a control strategy based on a preset time disturbance observer for the problem that communication topology dynamic change and external disturbance interference are difficult to consider at the same time. In system modeling, each trolley is modeled as a second-order nonlinear system, and external disturbance is generated by a heterogeneous external source system. In the design of the controller, a disturbance observer with a preset time convergence characteristic is introduced, and strict convergence of disturbance estimation errors can be realized in finite time. Control input is fused with three parts of neighbor state difference feedback, leader tracking and disturbance compensation, and it is ensured that the system can still achieve a consistent target in a complex dynamic environment. By constructing a combined Lyapunov function and combining a Markov jump system theory, it is proved that a system state error and a disturbance estimation error converge to zero after a preset time. A simulation result verifies the effectiveness and stability of the method under communication switching and non-ideal disturbance interference.

The invention discloses a heterogeneous multi-agent dynamic event trigger output consistency control method and device under FDI attack and a storage medium wherein the heterogeneous multi-agent dynamic event trigger output consistency control method under FDI attack comprises the following steps: a heterogeneous multi-agent system receives FDI attack data; the FDI attack data triggers a trigger response of a dynamic event trigger mechanism introduced in a tracking state observer; self-adaptively compensating the influence of the FDI attack data on the heterogeneous multi-agent system through a self-adaptive state observer; fDI is false information injection. The invention discloses a heterogeneous multi-agent dynamic event trigger output consistency control method and device under FDI attack and a storage medium. The problem of output consistency of a heterogeneous multi-agent system under FDI attacks is solved, and a dynamic event triggering mechanism is introduced to save communication resources.

The embodiment of the invention provides a dynamic event trigger consistency control method and system for a multi-agent system, and the method comprises the steps: setting a dual-threshold line based on a Lyapunov function, dividing a system state function into an activation time period, a holding time period and an idle time period, and dynamically switching the working mode of the controller, namely inputting a non-zero control quantity in an activation period to quickly converge a state, performing input zero setting in an idle period to save resources, maintaining control input at the previous moment in a keeping period to avoid frequent switching, and forcibly performing zero setting control input in a DoS attack period. Secondly, monitoring a measurement error (a deviation between a current state of the intelligent agent and a historical trigger state), a consistency error (a state deviation between the intelligent agent and a leader) and an auxiliary variable in real time, and if the weighted contribution of the measurement error in an activation time period exceeds the sum of the weighted contribution of the consistency error and the auxiliary variable, triggering a communication update state and reducing redundant communication;

The invention provides a multi-cavity mold PET bottle preform production consistency optimization control method, which comprises the following steps of: arranging high-response infrared thermal imaging and piezoelectric pressure sensors to realize high-precision real-time synchronous acquisition of temperature and pressure data of each cavity, and establishing a cavity exclusive thermal history fingerprint model by using time sequence feature extraction and a deep neural network; combining the thermal historical fingerprints and the real-time filling data, dynamically calculating the thermal interference intensity between the cavities, and generating a multivariable coupling relation matrix; decomposing an overall consistency target by using principal component analysis and a multi-target optimization algorithm, generating a personalized compensation instruction adapted to thermal inertia and sensitivity of each cavity, and realizing multivariable decoupling cooperative control through adaptive PID parameter adjustment and virtual decoupling variables; wall thickness detection quality feedback is introduced, a model closed-loop calibration mechanism is constructed, adaptive iterative optimization of a control strategy and forming quality is guaranteed, and the consistency of multi-cavity injection molding products and the robustness of the system are remarkably improved.

The invention discloses a two-way output consistency control method for a heterogeneous multi-agent system, and the method comprises the following steps: 1, constructing state and output equations of a follower agent and a leader agent, calculating an output tracking error ei (k), and constructing an augmented system state space model and a linear control input ui (k); 2, designing a distributed bipartite observer for each follower agent to enable an output tracking error ei (k) to be zero all the time, and replacing a leader agent state of the augmented system state space model with a state of the distributed bipartite observer; 3, defining a Q function, solving the Q function to obtain an optimal control strategy, and introducing a Q-learning algorithm to obtain an optimal control gain only depending on an input state of the augmented system state space model; 4, introducing a fuzzy logic system approximation Q function to enable a matrix phi i to meet a full-rank condition, and updating a fuzzy weight by minimizing a Bellman residual error to obtain an optimal control gain of the input state of the augmented system state space model; and updating the control gain by adopting a gradient descent method, and calculating linear control input ui (k) by utilizing the updated control gain.

The invention relates to a distributed cooperative processing method and system based on multi-source heterogeneous data real-time synchronization, source data and related factors thereof are packaged to generate a space-time event stream, and the related factors refer to environment factors associated with the source data; respectively establishing dynamic consistency contracts for the source data of the space-time event streams and related factors thereof, processing the space-time event streams meeting the consistency contracts, and generating target events according to the corresponding consistency contracts; performing analysis based on the operation sequence and the context of the space-time event stream, and outputting an analysis result; the target event is corrected based on the analysis result, the result is synchronously output, and the result is synchronized to the corresponding data source, performance, elasticity and expandability are achieved at the same time, the rigid choice of the CAP iron triangle (Bruhr theorem) in practice in the distributed field is broken, unprecedented precise consistency control is provided, and the method is suitable for popularization and application. And correct execution of the business rule is ensured.

The invention discloses a bipartite consistency control method of an unmanned aerial vehicle cluster under lagging full-state constraint, and relates to the technical field of unmanned aerial vehicle cluster cooperative control, comprising the following steps: establishing an unmanned aerial vehicle attitude dynamic model subjected to lagging full-state constraint and input saturation; constructing a coordinate conversion mechanism, and converting an original constrained system into an equivalent unconstrained system; constructing a cooperation-competition coexistence topology communication network, and defining an error dynamic state in combination with a self-adaptive backstepping control technology; an interval type-2 fuzzy logic system and a self-triggering communication protocol are integrated, and a self-adaptive fuzzy self-triggering fixed-time bipartite consistency controller is designed. According to the method, feasibility conditions do not need to be preset, through innovative coordinate conversion and control strategies, the problem of fixed-time dichotomy consistency control of the unmanned aerial vehicle cluster under lagging full-state constraint and input saturation is effectively solved, meanwhile, the network communication load is remarkably reduced by means of a self-triggering mechanism, and the system reliability is improved. And the control precision and the resource utilization efficiency of the system are improved.

Disclosed in the present invention are a virtual impedance angle adaptive control method and system for parallel operation of converters, relating to the technical field of converter system control, and comprising: by means of a consistency control algorithm, observing an active average value and a reactive average value; by means of the active average value and the reactive average value, obtaining a trigonometric function value corresponding to the virtual impedance angle; obtaining a virtual resistance and a virtual negative reactance corresponding to each converter; using a dynamically changing virtual impedance angle to perform power coordinate transformation on the active power and reactive power of the converter in order to obtain generalised active power and generalised reactive power; and controlling the generalised active power and generalised reactive power. The present invention is applicable to a scenario of parallel operation of converters, such as a microgrid; by dynamically adjusting the virtual impedance angle in real time, the problem of voltage deviation after the introduction of virtual impedance can be significantly improved, and the voltage quality can be improved.

The invention relates to the technical field of artificial intelligence and control, in particular to a non-linear multi-agent system fixed time consistency control method and device and a medium. According to the control method, a backstepping recursion method is used as a control design framework, a self-adaptive fixed time consistency controller based on an auxiliary compensation system is provided, and the problem of non-linear multi-self-body system consistency control under time-varying input delay is solved. By providing and changing a control input signal by a person, the motion trajectory of the multi-agent system can be modified as required. Time-varying input time delay and an unknown nonlinear function are considered in a system model, so that the system is more general. Wherein an unknown time-varying delay function is processed by constructing an auxiliary compensation system, and an unknown nonlinear function is processed by using radial basis function neural network approximation. According to a fixed time control correlation lemma, an actual fixed time adaptive consistency control method is provided to ensure that the consistency error of the multi-agent system converges to a neighborhood near an original point in fixed time.

The invention belongs to the field of panoramic stitching digital image processing technologies and camera ISP technologies, and particularly relates to a chromatic aberration consistency control method based on front and rear end collaboration. The method comprises the following steps: 1, acquiring statistical information of multiple cameras; step 2, acquiring a current camera control parameter by adopting a front-end chromatic aberration consistency adjustment algorithm; 3, the current camera control parameters are issued to all the cameras, and all the cameras complete exposure imaging according to the current camera control parameters; step 4, acquiring an overlapped part image in each path of camera imaging; step 5, calculating a statistical histogram cumulative distribution function of overlapped part images in each path of camera imaging; step 6, calculating a histogram matching function according to the cumulative distribution function of the overlapped part images in each path of overlapped camera imaging, so that the histograms of the overlapped parts of the two images tend to be consistent; and step 7, according to the obtained histogram matching function, transforming the brightness channel of each pixel in the corresponding camera imaging to complete color difference consistency correction.

This invention discloses a distributed consistency control method and device for primary-distribution-microgrid collaborative energy storage, relating to the field of power system energy storage control technology. The method includes the following steps: acquiring the SOC deviation and voltage deviation of each energy storage node; converting the voltage deviation into a dynamic feedback gain through nonlinear mapping; performing asymmetric adaptive correction of the SOC deviation using the difference in dynamic feedback gains between adjacent nodes; generating a local active power regulation quantity based on the corrected SOC deviation and upper-level scheduling instructions; controlling the local energy storage converter to perform power regulation through the active power regulation quantity, updating the SOC and voltage of the local node, and using the updated SOC and voltage as the initial values ​​for the next control cycle. This invention achieves spontaneous transfer of physical stress in a microgrid group and self-organized survival of the system without increasing the communication bandwidth of the centralized controller.

The invention discloses a flexible photovoltaic tracking support electrical linkage consistency control method and system. According to the method, the target angle, the real-time angle and the inclination angle data of a support are collected, a one-master multi-slave distributed control architecture is combined, and a transverse verification mechanism, a double-link cross correction mechanism and a longitudinal verification mechanism are utilized, so that synchronous and consistent operation between driving units is achieved; and hierarchical fault protection and angle self-calibration are executed when communication is interrupted, overloaded or triggered by hard limit. The system comprises a master controller, a slave controller, a motor encoder, a tilt angle sensor, a communication module, a protection module and an information interaction unit, and can realize local visualization and remote monitoring. According to the scheme, flexible support distortion and photovoltaic module damage caused by inconsistent driving can be effectively avoided, and the safety, reliability and operation and maintenance efficiency of the system are improved.

The invention relates to the technical field of solid-state storage, in particular to a solid-state disk data consistency control method, and aims to solve the problems that a solid-state disk is poor in data consistency, high in power failure loss risk and difficult to balance writing efficiency and consistency under the scenes of power failure, parallel writing and garbage collection. Full-process consistency control is realized by constructing a'cache-persistent cache 'layered architecture and combining a multi-channel write synchronization, power failure emergency migration and periodic check repair mechanism: receiving data and storing the data in a cache firstly, distributing a multi-channel write task according to weighted polling and synchronizing the state; the standby capacitor is triggered to supply power during power failure, and the cache data is migrated to the persistent cache according to the FIFO; and according to a configurable period of 1-24 hours, flash memory block data are verified through SHA-256 hash, and when the flash memory block data are inconsistent, the flash memory block data are repaired from a persistent cache / backup block. According to the method, the data consistency compliance rate of the solid-state disk is larger than or equal to 99.9%, the power-down data loss rate is smaller than or equal to 0.01%, the write-in delay is reduced by 15%-20%, and the method is adaptive to consumption-level, enterprise-level and industrial-level solid-state disks.

The invention discloses an MASs consistency logic security control method under hybrid attacks, and relates to the technical field of multi-agent system security control, the method comprises the following steps: firstly initializing MASs system parameters, and realizing data confidentiality protection and information tampering detection by an LSPM through a two-layer key mechanism of symmetric key encryption and asymmetric key signature; designing a segmented consistency controller for a mixed scene of eavesdropping, information tampering containing content and identity source tampering and DoS attack, and deriving a linear matrix inequality LMIs through a time-varying Lyapunov function LKFs to solve controller parameters; and finally, continuously executing data security transmission and state adjustment to ensure that the MASs realizes leader-follower LF consistency. According to the method, when the MASs face mixed network attacks such as eavesdropping, tampering and denial of service, a comprehensive guarantee with confidentiality, integrity and authenticity is provided, and the reliability that the system finally realizes a consistent control target is ensured.

The invention discloses a clustering consistency control method, system and equipment for multi-agent system safety. The method comprises the following steps: constructing a multi-agent system clustering network and a dynamic model based on external disturbance factors; obtaining communication topology between the intelligent agents based on the clustering network; the method comprises the following steps of: constructing an adaptive event triggering strategy with a memory characteristic on a clustering network, converting a system clustering consistency problem into a convergence analysis problem of an error system, then obtaining sufficient conditions for a distributed controller to meet anti-interference performance and mean square index stability through a Lyapunov-Krasovskii functional, and finally decoupling nonlinear factors to obtain an LMI condition; and solving controller gain and specified related parameters to realize security clustering consistency control of the multi-agent system in a communication resource limited and spoofing attack environment. According to the method, the consistent achievement of multi-agent system clustering and safe and stable operation under spoofing attack and disturbance network communication can be ensured.

The invention provides a packet consistency research method for a cooperation-competition network discrete heterogeneous multi-agent system with packet loss, and the method is characterized in that the method specifically comprises the following steps: 1, determining a dynamic model of the heterogeneous multi-agent system; 2, designing a packet consistency control protocol about packet loss; 3, obtaining a closed-loop form of the kinetic model according to the control protocol in the step 2; 4, assuming that the topological structure of the heterogeneous multi-agent system is a bipartite graph containing a spanning tree, and setting establishment conditions; and 5, proving that the establishment condition is established, and indicating that the closed-loop form of the dynamic model can realize progressive grouping consistency.

This invention relates to the field of cooperative control technology, specifically to an adaptive event-triggered fixed-time consistency control method for multi-agent systems, comprising the following steps: S1, constructing a mathematical model of a nonlinear high-order multi-agent system with uncertain dynamics; S2, constructing a Lyapunov function containing a lower bound of uncertain parameters based on coordinate transformation; S3, designing an adaptive event-triggered controller with a positive bounded function using a backstepping control method, including a virtual controller, an adaptive law, and an event triggering mechanism; S4, proving through stability analysis that a high-order nonlinear multi-agent system with uncertain dynamics can achieve consistent output at a fixed time and avoid Zeno behavior. This invention's adaptive event-triggered fixed-time consistency control method for multi-agent systems solves the problem of consistent output at a fixed time for a class of high-order nonlinear multi-agent systems and extends existing results on consistent output at a fixed time.

The DoS attack strategy making method based on the multilayer cut points is provided for consistency control of the multi-agent system, and the state consistency of the multi-agent system is effectively influenced under the condition that it is guaranteed that the attacker consumes relatively little energy. The method comprises the steps that a multi-agent system consistency model and a DoS attack model are established, an objective function is obtained by taking energy consumption of an attacker and a system consistency error as two indexes, multi-layer cut points are used for replacing an attack action space to improve the optimization efficiency of the objective function, and an attack strategy is obtained by optimizing the objective function. The attack research essence is to guarantee the improvement of the system security performance, and the method provided by the invention can be used as a link for testing the system security to help discover the defects in the aspect of system defense.

The application discloses a chain size consistency control method and a production process of a ring chain. The production process of the ring chain comprises the following procedures: blanking, chain weaving, shot blasting, welding, heat treatment, stretching correction and the like. The chain weaving procedure comprises the steps of implementing the chain size consistency control method and normal chain weaving. The chain size consistency control method comprises the following steps: presetting a target temperature to be heated, heating a chain core tool, measuring an actual temperature of the chain core in real time, and comparing the actual temperature with the target temperature. If the actual temperature is less than the target temperature, the heating is continued. If the actual temperature is equal to the target temperature, the heating is stopped or heat preservation is performed, and normal chain weaving is performed. The chain core is preheated, so that the temperature of the chain core is equivalent to that of the bar material. Thermal stress caused by temperature gradients at different positions of the bar material in the chain weaving process is reduced. The size of the same type of chain ring in the whole chain in the chain weaving procedure is stable and consistent, and the chain weaving quality is significantly improved. Meanwhile, the difficulty of quality guarantee is reduced.

The invention is suitable for the technical field of data communication, and provides a DMA-based leader-containing multi-agent system consistency control method, which comprises the following steps: establishing a leader-containing multi-agent system model and a binary value communication model; performing binary processing on the data in the DDR, storing the data, collecting initial state information of a leader agent and a follower agent, obtaining corresponding sampling data, and storing the corresponding sampling data in the DDR through a DMA controller; the binary state information stored in the DDR is called through the DMA to complete interaction between the information data; obtaining an estimated value of a neighbor state according to a two-set value identification algorithm; and the follower i performs operation by using the estimated value and the state value of the follower i, updates the state of the follower i and stores the updated state information in a DDR (Double Data Rate) through DMA (Direct Memory Access). A DMA (Direct Memory Access) technology is introduced in a data communication process, and the two-set value state information of the nodes is directly and efficiently carried to a system memory from a buffer area, so that the efficient transmission of the state information between the nodes is realized.

The invention belongs to the technical field of aviation machining, and discloses a numerical control machining method for a magnetically soft alloy large-length-diameter-ratio thin-wall rotary workpiece, which comprises the following steps of: clamping the outer circle of the workpiece, penetrating a mandrel through an inner hole, and carrying out rough machining and finish machining on the outer circle at one end of the workpiece; turning around, clamping the outer circle of the workpiece, enabling an inner hole to penetrate through a mandrel, and performing rough machining and finish machining on the outer circle of the other end of the workpiece; the outer circle of the workpiece is clamped, the end face of the workpiece is flattened, an inner hole is bored, and back gouging is conducted on the root of the hole; and turning around, clamping the outer circle of the workpiece, flattening the end face of the workpiece, and turning and adjusting a threaded hole. The problem that in the existing thin-wall part machining process, wall thickness uniformity and consistency control are poor is solved, the machining efficiency is high, and the machining quality is stable and reliable.

The invention discloses a self-adjusting predetermined performance consistency control method for a multi-agent system, and the method comprises the steps: building a mathematical model of the multi-agent system, and defining a synchronization error of a follower agent; describing an information interaction relationship among the agents in the multi-agent system based on a graph theory; defining a performance constraint of a synchronization error and a self-adjusting performance boundary function, and introducing a boundary adjusting mechanism with a safety interval detection function to dynamically adapt to disturbance; mapping the synchronization error constrained by the predetermined performance boundary into an unconstrained variable through error conversion and a barrier function; and on the basis of a backstepping method, designing a virtual controller of each order, a final actual controller and an adaptive rate, and realizing cooperative tracking control of the multi-agent system. According to the method, the problems of initial condition feasibility, fixed performance boundary rigid constraint and symmetric performance limitation can be solved, burst interference can be dealt with through a self-regulation mechanism while overshoot, convergence time and steady-state precision are ensured, and the robustness of the system is remarkably improved.

The present disclosure relates to a request-level consistency control method and system for dynamic configuration hot update. The method comprises: organizing configuration content into multiple versioned configuration snapshots, establishing a corresponding reference count for each versioned configuration snapshot, and setting a candidate version; enhancing a configuration reading path in a service node by plugging so as to be able to perform a configuration reading operation according to a bound version; in response to receiving a service request, creating an activation token for the service request, obtaining a current candidate version as the bound version, writing the bound version into the activation token, and increasing the reference count of the bound version; during processing of the service request, when configuration needs to be read, reading a configuration value from a corresponding versioned configuration snapshot according to the bound version in the activation token; and in response to the processing of the service request being completed, decreasing the reference count of the bound version by one.

The application discloses a film and television role playing method based on emotional retrieval and role consistency control, and relates to the technical field of artificial intelligence and natural language processing, which aims at the problems of role behavior deviating from the setting, lack of emotional response resonance and inconsistent retrieval content style in the prior art, constructs a role memory knowledge graph and calculates semantic and emotional vectors, carries out emotional retrieval according to user query, modifies the preliminary response after atomic fact analysis and consistency verification, and finally outputs a natural language reply conforming to the role setting and having emotional resonance, and is mainly used for improving the reality and immersion of film and television role interaction.

The application relates to a kind of injection molding product quality consistency control method and system, relate to injection molding process control field, it includes steps 100: the torque data of screw is collected;Step 101: in response to the torque data and preset reference torque, determine counterflow volume;Step 102: in response to the counterflow volume, determine packing pressure, and collect injection time;Step 103: when the injection time is greater than preset transition packing point, control preset injection device according to the packing pressure packing.This application has the effect of improving the consistency of injection molding product quality, reducing the situation that counterflow occurs in injection molding process and leads to the decline of injection quality.

The application discloses a control instruction recognition and multi-system collaborative control method and device based on a Petri net and a storage medium. The method comprises the following steps: standardizing an engine test time card, adding a structured label to generate a parseable text; extracting the label content to construct a discrete event sequence and perform visual display; constructing a Petri net model based on the discrete event sequence, defining a library, a transition and a token; designing a multi-system collaborative control strategy comprising a PID controller and a consistency controller; generating a control instruction sequence according to a current identification state of the Petri net, combining the collaborative control strategy to drive the linkage of a gas supply, air intake and exhaust subsystem model, and automatically executing a test process. The application realizes automatic recognition of a test process and dynamic generation of a control instruction, improves the response speed and control quality through multi-system collaborative control, and significantly improves the automation level and execution efficiency of an aero-engine test.