8results about How to "Clear logical relationship" patented technology

The invention relates to the technical field of motor control, and discloses a hybrid excitation synchronous motor control strategy optimization method and device. The method comprises the following steps: performing mathematical modeling on permanent magnet flux linkage, exciting current and rotor parameters of the hybrid excitation synchronous motor to obtain a state observer equation; collecting current parameters and position parameters, and performing filtering processing to obtain motor operation state parameters; inputting a five-layer deep neural network for current and rotating speed parameter prediction to obtain an optimal current parameter and an optimal rotating speed prediction parameter; constructing a multi-objective function, and solving to obtain a current reference value; inputting the current reference value into a cascade PI controller, and performing voltage regulation through feedforward decoupling control and a space vector pulse width modulation technology to obtain a control voltage signal; and performing performance calculation control parameter optimization on the control voltage signal to obtain a target control parameter, thereby improving the control precision of the hybrid excitation synchronous motor.

The invention relates to the field of fault analysis of alternating current and direct current turnout electrical systems, in particular to an alternating current and direct current turnout fault analysis system and method based on fault tree analysis. The method comprises the following steps: extracting and normalizing multi-dimensional electrical characteristics to obtain standardized electrical characteristics; introducing a feature influence weight matrix, and calculating a mapping value of the standardized electrical feature to the fault event; designing a feedback factor, and dynamically adjusting the feedback factor according to the standardized electrical characteristics; generating the overall fault probability of the system based on the adjusted feedback factor and the mapping value of the standardized electrical characteristics to the fault event; and calculating the fault probability of the fault event based on the overall fault probability of the system, and generating the fault probability of the basic event based on the fault probability of the fault event. The problems that the mutual relation between multi-dimensional electrical characteristics is not comprehensively considered, the interaction between levels is not fully considered, a dynamic feedback mechanism is lacked, and the probability of fault events cannot be adaptively adjusted are solved.

This invention provides an adaptive AGC control circuit and method for broadband RF front-ends. The circuit includes: a gain tuning circuit connected to the RF link of the broadband RF front-end; and a signal detection circuit connected to the gain tuning circuit. The signal detection circuit is used to sample the RF signal in the RF link of the broadband RF front-end through an ADC, and to perform signal processing and gain control on the sampled RF signal based on an FPGA, thereby controlling the gain tuning circuit. This invention uses an FPGA+ADC hardware solution to achieve real-time detection and closed-loop fast control to realize adaptive AGC control of the broadband RF front-end, which has the following characteristics: 1. Simple circuit structure, clear logic, and easy implementation; 2. Real-time signal acquisition and processing with low state control delay; 3. High accuracy of dual-threshold signal detection and discrimination; 4. Flexible and controllable gain, and wide applicability.

The present invention relates to the field of network information security technology, and discloses a method and system for modeling the danger of power data external services, including: obtaining power data, and classifying data according to power data business characteristic attributes; defining typical scenarios for power data external services, and classifying data classified at the business characteristic layer at the typical scenario layer; monitoring the power data classified at the typical scenario layer, constructing a threat identification matrix, and determining threat factors; based on the threat factors recorded in the constructed threat identification matrix, using the Monte Carlo algorithm to simulate the probability distribution of threat events and determine the frequency of threat events; based on the frequency of threat events combined with the weights of threat events and business scenarios, constructing a threat assessment matrix model, obtaining the risk value of the threat to the entire business, completing the threat level sorting, and realizing the risk factor assessment of power data external services. The present invention improves the extensiveness and accuracy of power system threat assessment.

The invention discloses a missing data positioning method, device and equipment and a readable storage medium, and the method comprises the steps: analyzing and determining a multi-level label hierarchical relationship between target data and source data based on a rule engine, and sequentially calculating the values of at least one atomic label and at least one derivative label contained in the target data, according to the method, the target data and the source data are subjected to data verification, the missing source data with abnormities are verified in combination with the composition relation between the atomic tag and the at least one derivative tag, compared with data verification achieved through SQL statements, the rule engine can achieve more convenient rule configuration, meanwhile, the logic relation or mathematical relation between the target data and the source data can be clearer due to the existence of the tags, and the user experience is improved. According to the method, the technical problems of slow adjustment response timeliness, difficulty in maintenance, difficulty in positioning missing data and incapability of intuitively displaying rules in a means for realizing complex logic rule configuration among data by adopting SQL (Structured Query Language) statements are solved.

The present application relates to the technical field of electrical system design, and particularly relates to a spacecraft electrical system interconnection component path planning optimization method and system. The method comprises the following steps: obtaining interconnection component data; constructing adjacency relationship according to the interconnection component data to obtain component adjacency data; selecting a beam splitting point according to the component adjacency data to obtain beam splitting point data; estimating point port cost of the beam splitting point data to obtain point port cost data; generating a control linkage graph according to the component adjacency data to obtain control linkage graph data; generating an interpretation field according to the control linkage graph data to obtain interpretation field data; determining the splitting benefit of the point port cost data and the interpretation field data to obtain splitting benefit data; and evaluating the hard constraint of the splitting benefit data to obtain beam splitting point feasibility evaluation data. The present application realizes the constraint of the beam splitting point position and the control semantics, effectively avoids the cross-stage control reversal and redundancy failure problems.

The invention provides a micro-service architecture system health degree measuring method and system, a storage medium and electronic equipment, and relates to the technical field of software development, computing resources, a database and a system micro-service program are abstracted into nodes, and a graph database is utilized to construct an object relation model; collecting index data of each component through a monitoring tool and storing the index data in a local time sequence database; an alarm threshold reference is predicted based on a correlation analysis algorithm, and automatic tracking of an alarm threshold is realized; defining a system health degree quantitative index set in combination with an alarm threshold dynamic prediction model; and determining a system health degree score by adopting a membership theory-comprehensive evaluation method. According to the invention, the measurement accuracy is improved, the false alarm rate is reduced, and the reliability of the system health degree measurement result is improved.

The invention provides a content generation method and device, electronic equipment and a storage medium, and relates to the technical field of content creation and multimedia generation, in particular to the technical field of multi-modal content generation and editing. The method comprises the steps of obtaining a creation instruction input by a user; analyzing the creation instruction to identify a creation intention and creation materials contained in the creation instruction; processing the creation material according to the creation intention to construct a visual node graph; and if an editing instruction of a user to a specified node in the node graph is received, updating the content of the specified node according to the editing instruction, synchronizing the updated content to the specified node, and keeping the graph structure of the node graph unchanged. According to the method and the device, through accurate analysis and efficient processing of the creation instruction, the structured management and consistency maintenance of the creation content are improved, so that the continuity and consistency of the content generated in the creation process are improved, the operation complexity of a user is reduced, and the user experience is further improved.