5 results about "System identification" patented technology

The invention provides a closed-loop system identification method based on slope response and known time delay, and belongs to the technical field of automatic control. The method comprises step: describing a controlled object by adopting a second-order inertia and pure delay transfer function; calculating the input data set and the output data set collected in the slope response process to obtainan available input data set and an available output data set; obtaining a processing input data set and a processing output data set through algebraic operation based on the available input data setand the available output data set; based on the feedback controller coefficient, processing the input data set and the output data set, calculating to obtain a final data set, and obtaining a final big data set through algebraic transformation; and obtaining a to-be-identified coefficient of the controlled object through matrix calculation based on the obtained last big data set and the availableoutput data set. According to the method, the controlled object can be identified as a continuous system, a basis is provided for dynamic characteristic analysis and controller design optimization ofthe controlled object, and the method has good industrial application potential.

The method comprises the following steps: crawling a standard text related to industrial standard online information safety through a crawler frame webmagic as original data, performing structured extraction on an industrial standard file needing to be updated through a preset text matching rule to obtain structured standard data, establishing a weight table of fields and risks, obtaining an updated industrial standard text, and updating the industrial standard file according to the structured standard data. By evaluating the difference between new and old standard texts and the difference between new and old scoring standard texts, mining a mapping relationship between the differences, and recognizing and updating industry standard contents through a difference evaluation system, dynamic updating of a sorting list needing to be audited and calibrated is realized, the scoring standard coverage of the system can be more comprehensive, and the evaluation efficiency of the system is improved. Negative effects caused by incomplete system evaluation are reduced; according to the method, national standards in related aspects can be matched in a targeted manner, so that the scoring standard which is artificially established can be combined with the latest national standards, and the scoring standard covers more national standards, so that the scoring standard is more normative and more feasible.