Title:
SMART MODELLING METHOD AND APPARATUS OF COMPLEX INDUSTRIAL PROCESS DIGITAL TWIN SYSTEM, DEVICE, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2022/121923
Kind Code:
A1
Abstract:
A smart modelling method and apparatus of a complex industrial process digital twin system, a device, and a storage medium. The smart modelling method of the complex industrial process digital twin system comprises: establishing a mechanism model of a complex industrial process, the mechanism model comprising the two parts of an identifiable model and unmodelled dynamics; estimating parameters of the identifiable model to obtain an identification model; using the error of the identification model and the unmodelled dynamics to form an unknown nonlinear dynamic system; establishing a smart model of the unknown nonlinear dynamic system; and using the identification model and the smart model of the unknown nonlinear dynamic system to establish a smart model of the complex industrial process digital twin system; the error of the identification model is a model output error caused when the parameters in the identifiable model are replaced with identification values thereof. Aimed at the problem of the difficulty of ensuring the precision of a complex industrial process digital twin system, a mechanism model-based system identification method is combined with a big data-based deep learning method, and an end-side cloud collaboration mode is used to establish a smart model of the complex industrial process digital twin system, solving the modelling problem of complex industrial process digital twin systems and increasing the modelling precision.
Inventors:
CHAI TIANYOU (CN)
WANG WEIZHOU (CN)
WANG WEIZHOU (CN)
Application Number:
PCT/CN2021/136323
Publication Date:
June 16, 2022
Filing Date:
December 08, 2021
Export Citation:
Assignee:
UNIV NORTHEASTERN (CN)
International Classes:
G06F30/27
Foreign References:
| CN112560337A | 2021-03-26 | |||
| CN111768000A | 2020-10-13 | |||
| CN111439681A | 2020-07-24 | |||
| CN110703718A | 2020-01-17 |
Other References:
JANUARY SINICA, ZHANG YA-JUN, TIAN-YOU CHAI, JIE YANG: "Alternating Identification Algorithm and Its Application to a Class of Nonlinear Discrete-time Dynamical Systems", ACTA AUTOMATICA SINICA, 15 January 2017 (2017-01-15), pages 101 - 113, XP055942242, [retrieved on 20220713], DOI: 10.16383/j.aas.2017.c150759
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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