Modeling and Control of SMT Manufacturing Lines Using Hybrid Dynamic Systems
نویسندگان
چکیده
In this paper we show how hybrid control and modeling techniques can be put to work for solving a problem of industrial relevance in SMT manufacturing. In particular, by closing the loop over the stencil printing process, we obtain a robust system that can recover from faulty initial settings, adapt to environmental changes and unscheduled interrupts, and remove discrepancies associated with bidirectional printing machines. Moreover, a timed Petri net argument is invoked for bounding the control effort in such a way that the throughput of the system is unaffected by the introduction of the closed-loop controller. The soundness of the approach is verified on a real SMT manufacturing line.
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