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Hybrid-system modeling and simulation platform and method based on HSTPN model

A hybrid system and model technology, applied in design optimization/simulation, special data processing applications, instruments, etc., can solve problems such as low scalability, high model complexity, and difficulty in fully describing the characteristics of hybrid systems.

Active Publication Date: 2017-10-03
NORTHEASTERN UNIV
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Problems solved by technology

[0004] The present invention provides a hybrid system modeling and simulation platform and simulation method based on the HSTPN model to solve the problems that the traditional system modeling platform has high model complexity, low scalability, and is difficult to fully describe the characteristics of the hybrid system

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  • Hybrid-system modeling and simulation platform and method based on HSTPN model
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  • Hybrid-system modeling and simulation platform and method based on HSTPN model

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Embodiment Construction

[0041] The invention provides a new hybrid system modeling and simulation platform and simulation method based on the HSTPN model. Based on the HSTPN model, the hybrid system with five types of hybrid characteristics including discrete characteristics, continuous characteristics, delay characteristics, random characteristics and decision characteristics is completed. System modeling and simulation, thereby reducing the complexity of the constructed model and improving the scalability of the model.

[0042] The HSTPN model is a mixed random time-delayed Petri net model (Hybrid Stochastic Timed PetriNet, HSTPN), and the HSTPN model is defined as a five-tuple:

[0043] HSTPN=(SG,T,F,Q 0 ,TH)

[0044] Among them, SG=(S D ,S C ,S T ,S S ,S K ), representing a finite place set, S D represents a discrete place set, S C represents a continuous set of places, S T Denotes the time-delayed place set, S SDenotes the set of random places, S K Represents the set of decision bases...

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Abstract

The invention discloses a hybrid-system modeling and simulation platform and method based on a HSTPN model. The hybrid-system modeling and simulation platform comprises a human-computer interaction module, a logic expression module, a simulation analysis module, a file storage module and an equivalent rule library. The platform can carry out modeling and simulation on a hybrid system with five hybrid characteristics of dispersing, continuation, delaying, random and decision at the same time, the hybrid characteristics are only defined in a five-type library, the modeling complexity can be reduced, the transitional moment theory is guaranteed, and the modeling expandability is improved; a hybrid state of the HSTPN model is jointly described through a library identification and the continuous state; the platform provides the equivalent function of the HSTPN model by establishing equivalent rules of a hybrid Petri net and a derivative model of the hybrid Petri net. The hybrid-system modeling and simulation platform and method can be applied to modeling and simulation of hybrid systems such as an information physical fusion system, a flexible manufacturing system, a logistic system and defense industry.

Description

technical field [0001] The invention relates to a system modeling and simulation platform and a simulation method, in particular to a modeling and simulation platform and a simulation method for a hybrid system with five characteristics of discrete, continuous, time delay, random and decision-making. Background technique [0002] A hybrid system refers to a system in which discrete event dynamic systems (Discrete Event Dynamic Systems, DEDS) and continuous variable dynamic systems (Continuous Variable Dynamic Systems, CVDS) interact. Change, in essence, belongs to a class of complex non-smooth, discontinuous nonlinear systems. However, there is still a class of hybrid systems, such as cyber-physical fusion systems, logistics systems, etc., which contain not only discrete and continuous characteristics, but also time delay, random and decision-making characteristics. Traditional system modeling methods are difficult to fully describe such systems. characteristic. [0003] B...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06Q10/06
CPCG06F30/20G06Q10/063
Inventor 郝丽娜曹瑞珉王风立白国力
Owner NORTHEASTERN UNIV
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