Fuzzy Logic Based Scheduling of Flexible Manufacturing System

Flexible manufacturing systems (FMS) are production systems consisting of identical multipurpose numerically controlled machines (workstations), automated material handling system, tools and load and unload stations, inspection stations, storage areas and a hierarchical control system. The latter has the task of coordinating and integrating all the components of the whole system for automatic operations. The basic problem in FMS operations is scheduling of jobs on the different machines. This problem can be solved through various approaches. One of the techniques is fuzzy logic. This technique answers a problem in a probabilistic way by values ranging between 0 and 1.in my problem, I have taken two priority conditions-job priority and route priority and the scheduling has been done accordingly. The results are compared with shortest processing time and more time is consumed using shortest processing time technique. This shows that fuzzy scheduler can be used as one of the powerful tool in FMS scheduling problem.