The Research On Modeling And Dispatch Simulating System Which Based On VB For FMS

With the rapid development of science and technology, the fierce competitions in the world market give new requirements to products on their capability, standard, and variety. Production of wider variety and smaller amount is becoming the dominant production mode, and people begin to attach greater importance to FMS. The control and scheduling of production planning of FMS act as the core of FMS running control system, and one of the key technologies as well which decide if FMS can obtain anticipated profit. The dynamic scheduling of FMS, with complexity and randomness, is the principal problem that ensures the effective running of FMS.At first, the thesis presentation of FMS' definition, characteristic, composing and principle, introduce the Petri net' definition, Certain basic PN model as well as it's essential capability and analysis technique.To realize the FMS dispatch simulation, first, we need to describe the FMS structure, the condition, the dynamic behavior and the performance modelling tool. In the multitudinous modelling tool, the Petri net may satisfy this kind of modelling request. Through studies each kind of Petri net, chose...