Operation-oriented principle modeling method of equipment virtual training system

Aimed at the problems of low developing efficiency and non-reusable of model in the existing equipment virtual training system(EVTS),which is about the close joint of appearance model and principle model,the structure of equipment simulation model is analyzed firstly,and a design idea of independent development of the two models is proposed.Then,on this basis,the conception of operation-oriented equipment virtual training is introduced and an operation-oriented principle modeling method is proposed.As an approach to graphical and hierarchical modeling with the standard semantics and syntax,it could describe the dynamic working process of equipment system completely.Finally,an application case is presented to verify the feasibility and practicality of the principle modeling method.