基于本体的仿真系统元概念模型研究*

在仿真系统的概念模型开发过程中存在着模型重用性不高和缺乏管理等问题,这些问题将影响模型开发效率和仿真系统的可靠性.为解决以上问题,提出了元概念模型(MCM)的概念,以实现在更高层次对概念模型进行抽象.将本体思想引入MCM的设计中,提出了基于本体的元概念模型(OMCM)建模方法,并给出了OMCM的层次结构和建模方法.最后,将该方法应用于装备保障仿真系统元概念模型的建模中,得到了较好的验证.

Research on ontology-based meta conceptual model of simulation system

Present mathematical models for simulating the temperature field of mixted terrain surface often simplify the energy transfer process by omitting the interactive fluxes among terrain components, which trails off the accuracy of simulation results. This paper proposed a coupled model for soil-vegetation mixed terrain based on the analysis of the material components and the spatial distribution characteristics. By integration of the interactive radiation fluxes between material components, the energy balance for soil-vegetaion-atmosphere was expressed in the coupled model. Experiment results show that the temperature field distribution and infrared images obtained using the proposed model are more likely to correspond with reality, which justifies the effectiveness of the coupled model.