Two different approaches for routing optimization are proposed and compared. The first method is open-loop and selects the route so that the job percentage on each alternative path approximates an optimal offline predetermined percentage. In the second approach decision-making is based on a merit index taking into account the current work in progress and the consequent machine availability, i.e., the current system's state. The decision is taken by comparing the index values for each one of the alternative paths allows for the job entering the system. Online simulation is used to estimate the near future system's state trajectory and to compute the merit index. Some case studies are presented comparing the method in terms of efficiency and implementation effort
Two method for real-time routing selection in flexible manufacturing systems / Fanti, M. P.; Maione, B.; Piscitelli, G.; Turchiano, B.. - STAMPA. - (1992), pp. 1158-1166. (Intervento presentato al convegno 1992 IEEE International Conference on Robotics and Automation tenutosi a Nice, France nel May, 10-15, 1992) [10.1109/ROBOT.1992.220092].
Two method for real-time routing selection in flexible manufacturing systems
M. P. Fanti;B. Maione;G. Piscitelli;B. Turchiano
1992-01-01
Abstract
Two different approaches for routing optimization are proposed and compared. The first method is open-loop and selects the route so that the job percentage on each alternative path approximates an optimal offline predetermined percentage. In the second approach decision-making is based on a merit index taking into account the current work in progress and the consequent machine availability, i.e., the current system's state. The decision is taken by comparing the index values for each one of the alternative paths allows for the job entering the system. Online simulation is used to estimate the near future system's state trajectory and to compute the merit index. Some case studies are presented comparing the method in terms of efficiency and implementation effortI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
