Industrial production simulation scene generator and scene generation method based on vine-copulas

Abstract

The invention provides an industrial production simulation scene generator and a scene generation method based on vine-copulas. The industrial production simulation scene generator comprises a scene data acquisition module, a scene preprocessing module, a Vine-copulas creation module and a scene generation module. In the scene generation method, the existing scene data is acquired from an initialscene database module, by preprocessing of a scene clustering module, a feature standardization module and a feature dimension reduction module, and so on, a scene generation model is created througha vine copula method through a model fitting module, a goodness detection module and a binary copula model library module, and the scene needed is generated through a scene sampling module and an inverse mapping module. The scene generator provided by the invention can be embedded into an emulation system to be used as an organization module of a production simulation system and used for configuration operations of the production simulation system. The scene generated by the method provided by the invention can be used for scene emulation, and also can provide reliable original data for otherexperiments and researches to perform targeted study.

Description

technical field [0001] The invention relates to the field of industrial production scene generation, in particular to a vine-copulas-based industrial production simulation scene generator and a scene generation method. Background technique [0002] The industrial industry is characterized by technology-intensive, highly continuous and complex operations, product diversity, and high-temperature, high-pressure, flammable and explosive production processes. Its research relies on production simulation technology. Production simulation methods mainly include deterministic production simulation methods and stochastic production simulation methods, among which stochastic production simulation methods will incorporate uncertain factors in production into research. Multi-scenario is one of the methods of uncertainty research. In the production simulation, through the simulation of multiple scenarios, the boundary values ​​and weak links of the system can be identified, and the forw...

AI Technical Summary

Problems solved by technology

[0008] In summary, there are still many problems in the production scene generation in the industrial field and its application in the simulation system. How to reasonably and effectively obtain the production data scene set is an urgent problem to be solved.

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