The use of redundancy to evaluate the manufacturing system total robustness: A quality approach

This paper proposes a modeling method of these control laws for manufacturing system. The robustness for these categories of system is discussed. Our approach consists in managing the disturbances of the drifts type of quality of the product. The Intervals Constrained Petri Net (ICPN) are used for the modeling of the no temporal constraints. A methodology of construction of a robust control system generating the margins of passive and active robustness is elaborated. The redundancy of the robustness of the elementary parameters between passive and active leads us to define the ways ensuring the total robustness of the system.